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  • Bryston 6b

    Bryston 6b

    Bryston 6b just in, good condition. three available price is for each these are the high powered older ones... Rated distortion: less than .02% I.M. or THD from 20-20 KHz at rated power or below. Rated power: 500 watts 8 ohms 800 watts 4 ohms 500 watts 2 ohms 800 watts 1 ohm 6400 cm2 of heat sinking, etc. 19" X 5.25" X 13.5", 50 lbs. Learn More
    $860.00

  • Spectral DMA 180

    Spectral DMA 180

    200 watt/channel SPECIFICATIONS DMA-180 Stereo Power Amplifier Power Output: (continuous) @ 8 ohms - 200 Watts RMS @ 4 ohms - 400 Watts RMS @ 2 ohms - 683 Watts RMS Output Current: 60 Amps peak per channel Frequency Response: ±0.1 dB, DC-150 KHz ±1 dB, DC-1 MHz ±3 dB, DC-1.8 MHz Distortion: Static: Less than 0.015% from DC to 100 KHz Typically 0.009% @ 200 WRMS/8 ohms Dynamic: 8 Tone Cluster Test 20 KHz @ 500 Hz separation; 0.01% 8 ohms; 0.015% 4 ohms Speed: Rise Time: Less than 400 nanoseconds Settling: 1.5 microseconds to -40dB Slew Rate: 600 volts/microsecond Noise: Signal to Noise: 97dB unweighted, 107dB ASA A Crosstalk: 98dB @ full power 8 ohms Input: Impedence: 100K ohms in parallel with 100 pf Sensitivity: 1.5 volts/nominal output Power Supply: Line Voltage: 100 volts, 120 volts, 240 volts (internal wiring) AC Voltage Range: ±10% Maximum Consumption: 1600 Watts Quiescent Consumption: 250 Watts Operating Temp: 0° to 50° Celsius range; 32° to 122° Farenheit Protection Features: DC Protection Servo: 0.5 volt range Current Limit Onset: 40 Amps Thermal Protect Threshold: 85° Celsius, 185° Farenheit AC Main Fuses: 2 @ 4A 3AG slo-blo, for 100 - 120 VAC, 2 @ 2A 3AG slo-blo, for 220 - 240 VAC Fuse Status: LED indicator (2) Size and Weight: Dimensions: 48cm (19")W x 17cm (6 1/4")H x 48cm (19")D Weight: 60 lbs, 27.2 KG Net Learn More
    $3,499.00

  • Fourier Triomphe OTL

    Fourier Triomphe OTL

    Fourier Triomphe OTL large tubed amplifier http://www.one-electron.com/Fourier.html Learn More
    $2,000.00

  • Perreaux 6100 6 channel amplifier

    Perreaux 6100 6 channel amplifier

    Specifications: Power Output Unbridged 6 x 120Wrms continuous, driven into 8Ω from 20Hz to 20kHz at no more than 0.015% Total Harmonic Distortion 160Wrms per channel into 4Ω Bridged 3 x 275Wrms continuous, driven into 8Ω from 20Hz to 20kHz at no more than 0.04% Total Harmonic Distortion Frequency Response ........................................................................................20Hz-20kHz ±0.75dB .....................................................................................................................-3dB @ 6Hz and 120kHz Total Harmonic Distortion (unbridged) Rated power ..............................................................................................................0.005% @ 1kHz Worst case prior to clipping...................................................................................................... 0.04% Dynamic Headroom...................................................................................................................2.5dB Damping Factor............................................................................................................. 600 @ 100Hz ......................................................................................................................................... 400 @ 1kHz Noise (inputs shorted, A weighted)............................................................................................. -97dB Input Sensitivity .......................................................................................................................1.0Vrms Input Impedance ........................................................................................................................ 47kΩ Dimensions Width...........................................................................................................................440mm (17.5”) Height............................................................................................................................177mm (7.0”) Depth...........................................................................................................................430mm (17.0”) Weight..........................................................................................................................20.0kg (44.0lb) Learn More
    $995.00

  • Conrad Johnson MF2200
    $850.00

  • Krell Trigger Converter 12pin in to 5 pin out

    Krell Trigger Converter 12pin in to 5 pin out

    Krell Trigger Converter 12pin in to 5 pin out Learn More
    $399.00

  • Krell KSA150 recapped

    Krell KSA150 recapped

    Krell KSA150 classic Krell amplifier, Great amp to get into high end audio with. 90 days parts and labor warranty The latest generation of high-resolution source components and speakers places new demands on the power amplifier. The Krell KSA 150 and KSA-250 meet these challenges with fresh design sophistication and long-term value. Both products can drive any speaker with an effortless quality that makes their power seem endless. Extreme clarity is maintained at all power levels. They both utilize Krell refined high-bias Class A and direct-coupled circuitry from input to output. Their power supplies and output stages are massive. High voltage rails with extensive regulation are provided for the input circuitry. All materials and electronic components are of the finest quality and operate within their optimum performance ranges. Virtually all hand wiring has been eliminated, resulting in a dramatic improvement in sonic clarity. The KSA-150 and KSA-250 both utilize Class A circuitry throughout the audio and power supply regulation stages. Class A gain stages deliver excellent sonic performance under diverse conditions because all active components are turned on at all times. This allows each component to operate in its most linear and precise regions. The amplifiers are able to respond to the full range of input signals with equal accuracy. The KSA-150 and the KSA-250 are conservatively rated at 150 and 250 watts per channel into 8 ohms, respectively. The 150 will actually generate 220 watts into 8 ohms, and the 250 will generate 320 watts into 8 ohms. The 8-ohm power ratings do not account for the amplifiers superb sonic performance nor describe their maximum power. The Krell definition of power and the ability to drive low impedances is that the output must double into successively low impedances. The immense power supplies in both products allow them to double their power into one ohm. There are many advances in thermal construction and control circuitry in the KSA -150 and KSA -250. All heat bearing structural components and external heat sinks have been designed in-house to improve thermal tracking and cooling. This construction provides very low thermal resistance between the output transistors and the heat sinks, resulting in superior thermal tracking. It also results in a considerable reduction in overall size. Greater amplifier life expectancy is an added design benefit. Automatic self-adjusting bias and DC offset control circuitry have been developed for the KSA-150 and the KSA-250. These circuits compel the amplifiers to conform to their intended operational parameters under all AC mains conditions. Learn More
    $1,999.00

  • Kenwood LO7 monoblocks

    Kenwood LO7 monoblocks

    classics \Power output: 150W into 8Ω (mono) Frequency response: 1Hz to 50kHz Total harmonic distortion: 0.008% Damping factor: 100 Input sensitivity: 1V Signal to noise ratio: 120dB Speaker load impedance: 4Ω to 16Ω Dimensions: 200 x 155 x 390mm Weight: 13kg Learn More
    $650.00

  • Mcintosh MC7100

    Mcintosh MC7100

    Mcintosh MC7100 100 watts/channel 2 available (you can bridge them to 300watts/channel) PERFORMANCE LIMITS Performance limits are the maximum deviation from perfection permitted for a Mclntosh instrument. We promise you that when you purchase a new MC7100 from a Mclntosh Franchised Dealer, it will be capable of performance at or better than these limits. STEREO POWER OUTPUT 150 watts into 4 ohm loads or 100 watts into 8 ohm loads minimum sine wave continuous average power output per channel, both channels operating. The output RMS voltage is: 28.3V across 8 ohms 24.5V across 4 ohms MONOPHONIC (BRIDGED) 300 watts into an 8 ohm load minimum sine wave continuous average power output. The output RMS voltage is: 49 volts across 8 ohms. OUTPUT LOAD IMPEDANCE STEREO 8 or 4 ohms MONOPHONIC 8 ohms RATED POWER BAND 20Hz to 20,000Hz TOTAL HARMONIC DISTORTION 0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power output. IHF DYNAMIC HEADROOM 8 ohms, 1.7dB 4 ohms, 2.1dB FREQUENCY RESPONSE + 0, -0.25dB from 20Hz to 20.000Hz + 0, -3.0dB from 10Hz to 100,000Hz INPUT SENSITIVITY 1.4 volts (2.5 volts at gain control center detent) A-WEIGHTED SIGNAL-TO-NOISE RATIO 95dB (115dB below rated output) INTERMODULATION DISTORTION. SMPTE 0.005% maximum if instantaneous peak power output does not exceed twice the output power rating. RATINGS WIDE BAND DAMPING FACTOR 8 ohms, 200 4 ohms, 100 INPUT IMPEDANCE 20,000 ohms POWER GUARD Clipping is prevented and THD does not exceed 2% with up to 14dB overdrive at 1000Hz. POWER REQUIREMENTS 120 volts, 50/60HZ, 3.0 amps UL/CSA MECHANICAL SIZE Front panel: 17 1/2 inches (44.5cm) wide, by 3 5/8 inches (9.2cm) high. Chassis: 14 3/4 inches (37.5cm) wide, by 2 3/8 inches (6cm) high, by 14 1/2 inches (36.9cm) deep, (from back of front panel), including connectors. Panel clearance required in front of the mounting surface is 1 inch (2.54cm). FINISH Glass with special gold/teal nomenclature illumination. Chassis and chassis cover are black. WEIGHT 24 pounds (11 Kg) net; 35 pounds (15.9Kg) Only 3 5/8 high Learn More
    $1,150.00

  • Bryston 8B THX 4,3 or 2 channel

    Bryston 8B THX 4,3 or 2 channel

    Bryston 8BTHX 4,3 or 2 channel $2950 Solid State / Tubed Solid State Number of Channels 4 Power 120 Watts / Channel @ 8 Ω(1) 200 Watts / Channel @ 4 Ω(1) Power Bandwidth 0.5 Hz - 100 kHz(1) Slew Rate 60 Volts / microsecond(1) Total Harmonic Distortion 0.01 %(1) Sensitivity 1.0 Volts(1) Input Impedance 50k Ω(1) Output Class AB(1) Weight 42 lbs.(1) [19.07 kg] Price USD $2950.00(1) Miscellaneous THX certified(1) Bridges to 400 Watts/ Ch. x 2 channels @ 8 Ω(1) 3-Ch. operation: 120 Watts / Ch. x 2 channels @ 8 Ω, 400 Watts x 1 channel @ 8 Ω(1) Learn More
    $1,499.00

  • Rotel RB-1091

    Rotel RB-1091

    500 watt top of line Only one available.... manual http://www.rotel.com/content/reviews/class%20d%20amplifiers/rb1091-hifinews-ma As new in the original boxes The absolute sound review: http://www.avguide.com/review/rotel-rb-1091-monoblock-amplifier This incredible new Class D amplifier from Rotel is based upon the same ICEpower® technology as utilized in the RMB-1077. The principal difference between the two being that RB-1091 produces a prodigious 500 watts mono into 8 ohms from a 3 5/8" high chassis. Rotel’s new Class D amplifiers are incredibly powerful and stable and will provide increasing amounts of voltage and current down to 4 ohm loads. Manufacturer: Rotel Part Number: RB1091 Specification: Power Configurations (FTC): 1x500 Watts Total Harmonic Distortion (20Hz-20KHz, 8 Ohms): < 0.03% Output Peak Current: 40A Damping Factor (8 Ohms): 400 Frequency Response: 10-40 KHz (±3dB) Signal to Noise Ratio (IHF A): 118 db Learn More
    $999.00

  • Bryston 4B ST

    Bryston 4B ST

    with xlr jacks 250watt/channel well reviewed Learn More
    $999.00

  • Conrad Johnson Art Mono top of the line

    Conrad Johnson Art Mono top of the line

    These are very lightly used in as new condition. Specifications: Power: ART Amplifier - 275 watts from 30 Hz to 15 KHz at no more than .5 % THD or IMD into 4 ohms (also available connected for 8 or 16 ohm loads) Sensitivity: 1.8V to rated power Frequency Response (at 10 watts): 20 Hz to 20 kHz, +/- .25 dB Frequency Response (at 10 watts): 20 Hz to 20 kHz, +/- .25 dB Hum and Noise: 108 dB below rated power Input Impedance: 100 kOhms Tube Complement: 1 x M8080, 1 x 6N30P, 8 x KT120 each amplifier Dimensions: 18.75D x 19W x 7.13H inches each amplifier Weight: 83 Lbs. each amplifier unboxed Learn More
    $16,900.00

  • Linn Knekt-A Room Amp

    Linn Knekt-A Room Amp

    Linn Knekt-A 3 available price is for each Learn More
    $200.00

  • Mark Levinson 331 stereo amplifier

    Mark Levinson 331 stereo amplifier

    Levinson 331 Description: Solid-state stereo amplifier. Rated output power, 20Hz–20kHz, with no more than 0.5% THD (FTC): 100Wpc minimum continuous into 8 ohms (20dBW); 200Wpc minimum continuous into 4 ohms (20dBW); 400Wpc continuous into 2 ohms (20dBW). Peak output voltage at rated line voltage: 48V into 8 ohms. Frequency response: 20Hz–20kHz ±1dB. S/N ratio (main output): <–80dB (ref. 1W). Input impedance: 100k ohms balanced, 50k ohms single-ended. Voltage gain: 26.8dB. Input sensitivity (for 2.8V output): 130mV. Input sensitivity (for full output): 1.3V. Output impedance: !x0.05 ohms, 20Hz–20kHz. Damping factor: >800, 20Hz–20kHz into 8 ohms. Power consumption: typically 260W at idle, 110W in standby. Dimensions: 17.56" (446mm) W by 18.85" (479mm) D by 9.3" (232mm) H; faceplate curve depth 1.22" (31mm). Shipping weight: 112 lbs Learn More
    $2,200.00

  • Krell KSA100 MK II

    Krell KSA100 MK II

    Krell KSA100 MK II excellent cosmetics, there are some green markings in the picture which were removed. We can ship this in your desired voltage Description provided by highendclassics.com: The Krell KSA-100 Class A poweramplifier was the first stereo amplifier from Krell Audio Industries. At the start of the eighties Connecticut witnessed the birth of another highend audio company within its stateborders: Krell Industies. ‘Class A power to the people’ could have been one of the inspiring thoughts for Daniel D’Agostino chief designer of Krell Industries. Of course there were already some Class A designs in the domain of the power amplifier but most and probably all of them were confined to relatively small powerratings. Even the huge monaural Class A amplifier from Levinson, the ML-2’s, could only muster 30 to 40 Watts of power at 8 Ohms. Other noteworthy low power Class A designs were John Bedini’s 25/25 Class A amp and Jean Hiraga’s ‘Hiraga Classe A’. The only high power Class A amp in those days was a stereo 125 Watt Class A design from the SUMO electric company named ‘The Gold’ designed by James Bongiorno. D’Agostino envisioned and designed an array of high powered Class A amps in which the KSA-100 (abbreviation KSA stands for Krell Stereo Amplifier) was the most powerful stereo amplifier rated at 100 Watts Class A power at 8 Ohms. Technical The KSA-100 is a configuration of two completely separated amps only sharing the same huge chassis. Each amp has its own powersupply (one Avel Lindberg 1250 VA toroidal, two 40,000 uF Sprague or Mallory large cans per channel), driverboard and poweroutputsection. Another so called true dual mono design was the ML-3 from Levinson but this amp was biased in AB mode. To get rid of all the Class A generated heat from the outputsection Krell opted for forced cooling with Papst fans blowing down (the MK II version blew upwards in sync with the natural convection flow of heat) trough circular arranged heatsinks with eight TO3 encased powertransistors per channel attached to it. As a matter of fact the ‘The Gold’ from the SUMO company also used fans to cool down the amp. Using active cooling instead of natural convection kept size and cost in check because huge expansive heatsinks would be needed to drop off the 650 Watts continuous power consumption. Seven years later Krell did make huge convection cooled mono-amps as their reference series (KRS-100 & KRS-200) with the same Class A output but with a significant raise in price and weight compared to the forced cooled versions. Although Krell has always been strongly associated with Class A biasing it’s their ability to drive extremely tough loads, like the renowned amplifier killer the Apogee Scintilla (1 Ohm version) fullrange ribbonspeaker, that really illustrated the kind of DNA a Krell was made of. Only a few other amplifiers in this era, and most of them were amps with low powerratings, could drive speakers at such low impedences. Opening up the “hood ” of the amp gives you a strong visual indication of the ‘brute force’ method used to get an unflappable amp that could drive anything on the market then and today. D’Agostino’s assault on the highend poweramplifier market was very successful worldwide due to these first designs. After Levinson and Threshold, Krell established itself as a strong contender on the highend audio-market. Sound quality This range of first Krell designs redefined the meaning of bass-slam. The KSA-100 sounded much more powerful then it’s relatively modest rating of 100 Watts with acceptable levels of refinement in the middle and high regions of the frequency-spectrum. This stereo-amp is a alround workhouse that was often mated with tube preamplifiers from Audio-Research and Conrad Johnson. Not delicacy and transparancy as the best offerings from Levinson and Threshold but nevertheless highly recommend. Krell KSA-100 Type: 100 Watt class-A stereo power amplifier Introduction: 1981 Discontinued:1987 Power rating (manufacturer) 8 Ohms 100 Watt 4 Ohms 200 Watt 2 Ohms 400 Watt 1 Ohm 800 Watt 0.5 Ohm 1200 Watt Learn More
    $2,100.00

  • Tung-Sol KT150 tubes NEW matched quad

    Tung-Sol KT150 tubes NEW matched quad

    4x Tung-Sol KT150 tubes NEW matched quad Learn More
    $330.00

  • VTL MB300 monoblocks with faceplates.

    VTL MB300 monoblocks with faceplates.

    VTL MB300 monoblocks, bench tested by HighEndAudioService of South Florida. All tubes tested with a Western Electric tube tester and perform within specification. These will come with all new signal capacitors also. Price is per pair Description: Tubed monoblock power amplifier. Rated power: 300W (no load specified). Power bandwidth: not specified. Frequency response: not specified. Sensitivity: 775mV RMS. Source impedance: 0.1 ohm. Dimensions: 19" W by 10" H by 10" D. Weight: 75 lbs each. Learn More
    $3,500.00

  • Sonographe SA150 by Conrad Johnson

    Sonographe SA150 by Conrad Johnson

    Sonographe SA150 by Conrad Johnson Was $1000 retail, matching preamp available. Very musical Learn More
    $390.00

  • Marantz Model 9 original versions

    Marantz Model 9 original versions

    Marantz Model 9 original versions. These are in our facilities and are being carefully restored. The model 9 is a massive single channel 70 Watt amplifier proving just how much difference an amplifier can make in high quality reproduction. It's exceptional stability and low distortion, together with it's tremendous reserves of power, result in remarkably clean performance. Transient response is superb. Built in metered adjustments. Beautiful precision construction. For superior stereo or monoaural reproduction, America's leading make of quality components offers the finest amplifier made today. Specifications Power output: 70W into 8Ω (mono) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.1% Damping factor: 17 Speaker load impedance: 4Ω to 16Ω Valve complement: 2 x ECC88, 1 x 6CG7, 4 x EL34 Dimensions: 15-3/8 x 8-1/4 x 10-1/2 inches Weight: 63lbs Learn More
    $15,000.00

  • Spectral DMA250 spoken for, inquire

    Spectral DMA250 spoken for, inquire

    Spectral DMA250, used factory carton, I can voltage convert prior to shipping. INQUIRE IF STILL AVAILABLE BEFORE PURCHASING. http://www.spectralaudio.com/dma-250.htm SPECIFICATIONS DMA-250 Stereo Power Amplifier Power Output: (continuous) @ 8 ohms - 200 Watts RMS @ 4 ohms - 350 Watts RMS @ 2 ohms - 570 Watts RMS Output Current: 60 Amps peak per channel Frequency Response: ±0.1 dB, DC-150 KHz ±1 dB, DC-1 MHz ±3 dB, DC-1.8 MHz Distortion: Static: Less than 0.015% from DC to 100 KHz, typically 0.009% @ 200 WRMS/8 ohms Dynamic: 8 Tone Cluster Test 20 KHz @ 500 Hz separation; 0.01% 8 ohms; 0.015% 4 ohms Speed: Rise Time: Less than 400 nanoseconds Settling: 1.5 microseconds to -40dB Slew Rate: 600 volts/microsecond Noise: Signal to Noise: 97dB unweighted, 107dB ASA A Crosstalk: 98dB @ full power 8 ohms Input: Impedence: 100K ohms in parallel with 100 pf Sensitivity: 1.5 volts/nominal output Power Supply: Line Voltage: 100 volts, 120 volts, 240 volts (factory set) AC Voltage Range: ±10% Maximum Consumption: 1600 Watts Quiescent Consumption: 250 Watts Operating Temp: 0° to 50° Celsius range; 32° to 122° Farenheit Protection Features: DC Protection Servo: 0.5 volt range Current Limit Onset: 60 Amps Thermal Threshold: Protects at 85° Celsius, 185° Farenheit AC Main Fuses: 2 @ 2-1/2A 3 AG slo-blo, for 100 - 120 VAC 2 @ 1-1/4A 3AG slo-blo, for 220-240 VAC Size and Weight: Dimensions: 48.22cm (19")W x 18.4cm (7 1/4")H x 45.8cm (18")D Weight: 62 lbs, 28.1 KG Net Learn More
    $4,400.00

  • D'agostino Classic 2 stereo amplifier

    D'agostino Classic 2 stereo amplifier

    D'agostino Classic 2 stereo amplifier, like new, original box The Classic Stereo is the most cost-effective way to experience the incomparable sound quality of Dan D'Agostino Master Audio Systems. Its core technologies are heavily based on the design of D'Agostino's acclaimed Momentum amplifiers. The sound combines the immense power and current needed to drive even the most exotic speakers with a subtle, sweet musicality normally associated with much smaller amplifiers. With the Classic Stereo, there is no need to worry about finding the right amplifier for your speakers...because the Classic Stereo is the right amplifier, no matter what speakers you own. As its name suggests, the Classic Stereo is a purist stereo amplifier, built into a basic yet attractive and rugged enclosure that can be rack-mounted if you wish. It's the simplest, most affordable way to get true D'Agostino quality: essential two-channel sound, with delicacy and dynamics that will please the world's most sophisticated audiophiles. No frills. Pure performance. Like every product from Dan D'Agostino Master Audio Systems, each Classic Stereo is built by hand in our Arizona factory using robust through-hole construction. * Photographs by Filip Kulpa, Audio-Video Poland Finish Black Power 300 watts @ 8Ω 600 watts @ 4Ω 1,200 watts @ 2Ω Frequency Response 1 Hz to 200 kHz, -1 dB 20Hz to 20 kHz, ±0 dB Distortion < 0.1% at 1 kHz 300 watts/8 ohms Signal-to-Noise Ratio 100 dB, unweighted Inputs 2 balanced XLR (XLR to RCA adapters supplied) Input Impedance 100KΩ Output Impedance 0.12Ω Dimensions 11.5 x 19 x 20 inches Weight 108 lbs. unboxed RS232 Learn More
    $8,500.00

  • Bryston 5BST 3 channel amplifier

    Bryston 5BST 3 channel amplifier

    Bryston 5Bst under warranty until 2015 Learn More
    $1,250.00

  • Linn LK85 (2 available, price is for each)

    Linn LK85 (2 available, price is for each)

    Linn LK85 This model of Stereo Power Amplifier operates at 85W per channel up to 4 Ohms. The Linn amplifier is fully upgradeable, so users can update it when other components of their stereo systems are upgraded. There are four sets of speaker wiring on the Linn LK85, which makes bi-cabling convenient to put in place. The Linn amplifier is designed to conserve energy by going into sleep mode after 10 minutes of inactivity. This feature also preserves the circuitry, which can become damaged from frequently turning it on and off. The Stereo Power Amplifier is all black and is often referred to as the Black Box. There are no frills, and the basic look of the Linn LK85 allows it to go along with many other components of the stereo system without looking out of place. Key Features RMS Power at 4 Ohms x2 85 W RMS Power at 8 Ohms 62 W 115V Learn More
    $325.00

  • Rotel RB-985

    Rotel RB-985

    Rotel RB-985 Five channels of amplification, THX certified, 100 watts rms output per channel at 8 Ohms, Frequency response 10 Hz - 80 kHz plus or minus 0.5 dB, harmonic distortion less than 0.03%, input impedance 27 kOhm, damping factor 180, size 5 1/2"H x 17 3/8"W x 15 5/8"D, weight 34 pounds Learn More
    $480.00

  • Crestron CNAMPX 7X200 built by ATI  $5000 new

    Crestron CNAMPX 7X200 built by ATI $5000 new

    No fan, unlike with some amps for HT installs, this is passively cooled. Also come with removable rack ears for rack mounting. Same amp as ATI AT2007 These amps (at $5000US retail) From Crestron: •Audiophile-grade surround sound amplifier •High-performance Class AB design •Discrete high-current, bipolar output transistors •200 Watts per channel @ 8 ohms (full bandwidth) •Twin MOH-core toroidal transformers with bifilar windings •Separate power supply for every channel •Convection-cooled modular component design •Opto-coupled output protection | Inrush current limiting •Remote power control and temperature monitoring via Cresnet Output Power 20Hz to 20kHz, all outputs driven at rated THD: •200 watts per channel at 8 ohms •300 watts per channel at 4 ohms Power Bandwidth 3Hz to 150kHz, +0/-3dB Frequency Response 20Hz to 20kHz, +0/-0.1dB at 1 watt, 8 ohms Total Harmonic Distortion (THD) ≤0.03% at full power SMPTE I.M. Distortion ≤0.05% S/N Ratio >110dB A-weighted Gain 28dB Damping Factor >400 Channel Separation >100dB, 20Hz to 20kHz Learn More
    $1,000.00

  • Mcintosh MC250

    Mcintosh MC250

    Mcintosh MC250 nice condition Mclntosh audio power ratings are in accordance with the Federal Trade Commission Regulation of November 4, 1974 concerning power output claims for amplifiers used in home entertainment products. POWER OUTPUT STEREO 50 watts minimum sine wave continuous average power output, per channel, both channels operating into 4 ohms, 8 ohms, or 16 ohms load impedance, which is: 14.1 volts RMS across 4 ohms 20.0 volts RMS across 8 ohms 28.3 volts RMS across 16 ohms MONO 100 watts minimum sine wave continuous average power output, operating into 2 ohms, 4 ohms, or 8 ohms load impedance, which is: 14.1 volts RMS across 2 ohms 20.0 volts RMS across 4 ohms 28.3 volts RMS across 8 ohms OUTPUT LOAD IMPEDANCE STEREO 4 ohms, 8 ohms, or 16 ohms; separate terminals are provided for each output MONO 2 ohms, 4 ohms, or 8 ohms; separate terminals are provided for each output RATED POWER BAND 20 Hz to 20,000 Hz TOTAL HARMONIC DISTORTION STEREO 0.25% maximum harmonic distortion at any power level from 250 milliwatts to 50 watts per channel from 20 Hz to 20,000 Hz, both channels operating MONO 0.25% maximum harmonic distortion at any power level from 250 milliwatts to 100 watts from 20 Hz to 20,000 Hz INTERMODULATION DISTORTION STEREO 0.25% if instantaneous peak power output is 100 watts or less per channel with both channels operating for any combination of frequencies 20 Hz to 20,000 Hz MONO 0.25% if instantaneous peak power output is 200 watts or less for any combination of frequencies 20 Hz to 20,000 Hz FREQUENCY RESPONSE (at 1 watt output) 20 Hz to 20,000 Hz +0 -0.25 dB 10 Hz to 100,000 Hz +0 -3.0 dB NOISE AND HUM 90 dB below rated output RATINGS OUTPUT VOLTAGES Stereo and Mono 25 volts for distribution lines DAMPING FACTOR 15 at 3 ohms output 38 at 8 ohms output 17 at 16 ohms output INPUT IMPEDANCE 200,00 Ohms INPUT SENSITIVITY 0.5 volt. Level control provided for higher input voltage GENERAL INFORMATION POWER REQUIREMENTS 120 volts, 50/60 Hz, 50 watts at zero signal output, 250 watts at rated output SEMICONDUCTOR COMPLEMENT 24 silicon transistors 18 silicon rectifiers and diodes MECHANICAL INFORMATION SIZE 7 1/16 inches high (17.94 cm), 105 /8 inches wide (26.99 cm), 155 /8 inches deep (39.69 cm) CHASSIS Chrome and black WEIGHT 36 pounds (16 Vintage Amplifier 50w/ch stereo. 100w mono. Response 20-20kHz (+0 -0.25dB). Learn More
    $800.00

  • KR Enterprises (KR Audio) KR800 mono amplifiers

    KR Enterprises (KR Audio) KR800 mono amplifiers

    KR Enterprises KR800 mono amplifiers, very nice, extra tubes available Learn More
    $5,500.00

  • Krell (all models)

    Krell (all models)

    We are authorized dealers for all Krell products. Please inquire about any product. Learn More
    $999,999.99

  • Sumo Andromeda II

    Sumo Andromeda II

    Sumo Andromeda II Mint, our tech just went through this and readjusting dc offset, bias 2/17 Learn More
    $850.00

  • Krell KAV-250a

    Krell KAV-250a

    Krell KAV-250a, more than one available 250watts/channel http://krellonline.com/assets/support/KAV250A3_V992_MAN.pdf http://www.soundandvision.com/content/krell-industries-kav-250a-and-kav-250a3 \two channels driving 8-ohm loads, began clipping at 0.038% distortion and 207.4 watts. The amp reaches 0.1% distortion at 233.2 watts and 1% distortion at 294.8 watts, as shown above. Into 4 ohms, the amp begins clipping at 407.9 watts and reaches 0.1% distortion at 427.3 watts and 1% distortion at 498.7 watts. The amplifier's frequency response was +/-0.16 decibels from 20 hertz to 20 kilohertz. The response only dropped to -0.04 dB at 10 Hz and to -0.88 dB at 50 kHz. Crosstalk was -102.5 dB from left to right at 1 kHz and -97.2 dB from right to left at 1 kHz. THD+N from the amplifier was less than 0.023% at 1 kHz Learn More
    $1,300.00

  • Sony TAN9000ES

    Sony TAN9000ES

    Sony TAN9000ES Two available...., Price is for each. Tested, no DC offset, works well Product Information The Sony TA-N9000ES amplifier provides over 115 watts RMS per channel for powerful and efficient audio quality. With a copper-plated chasis, this Sony amplifier is very durable and rugged. Although being rugged, this Sony 5 channel amplifier has a smooth faceplate with great controls. While providing so much power, the Sony TA-N9000ES has ample heatsinking capability that keeps it cool throughout its operation. To protect the power supply, this Sony 5 channel amplifier has a copper shield. The five amplifiers come with special output transistors that decrease the resonance of the unit. Moreover, this Sony amplifier has a short-signal, single-point earthing system that reduces distortion and simplifies the PWB design. Product Identifiers Brand Sony Model TA-N9000ES MPN TA-N9000ES Key Features Frequency Response 20 Hz - 20 kHz Number Of Channels 5 Tech Details RMS Power per channel at 4 ohms 115 Watt RMS Power per channel at 8 ohms 115 Watt THD (Total Harmonic Distortion) 0.01 % Remote Control Without Remote Control Bridgeable Bridgeable Learn More
    $650.00

  • Cello Performance II  Four Chassis Mono Amplifiers

    Cello Performance II Four Chassis Mono Amplifiers

    Cello Performance II Four Chassis Mono Amplifiers with factory connecting cables for the amps, very rare Inquire for a freight quote Learn More
    $14,800.00

  • Jeff Rowland Design Group Model 5 (last version)

    Jeff Rowland Design Group Model 5 (last version)

    A classic, musical, large, best example of a Jeff Rowland Design Model 5 stereo amplifier Power Bandwidth 0.15 Hz to 250 kHz, -3 dB. - Slew Rate 75 volts per microsecond. - Damping Factor Greater than 175, 20 Hz to 20 kHz, 8 ohms. - Output Current 40 amps peak, continuous. - Sensitivity 36 mV, 1 watt, 8 ohms. - Input Impedance Selectable: 100k, 20k, 600 ohms. - Power Requirements 100V-240V. Learn More
    $2,500.00

  • PS Audio GCC-100

    PS Audio GCC-100

    one owner, with remote The GCC-100 is a stereo, 100 watt per channel Control Amplifier that produces 200 watt per channel into 4 Ohms and drives speaker loads as low as 1.5 Ohms. It has a damping factor that exceeds 1000 and is capable of driving any moderate loudspeaker to live orchestral crescendo levels. The GCC-100 has an input impedance of 47K Ohms, and features 4 RCA and 1 XLR balanced input and an auxilliary output to drive another amplifier or a subwoofer. It can be remotely turned on/off with a simple 12 volt trigger or the supplied remote control, is a fully balanced amplifier with noise levels low enough that you’ll have to place your ear next to the tweeter to even hear if it’s working. The GCC-100 is a perfect music center for the most discerning stereo system and has the best midrange and top end of any of the three models (although they're all great) Learn More
    $900.00

  • Audio Research Reference 600 mk II

    Audio Research Reference 600 mk II

    The ultimate high power tubed amps. POWER OUTPUT: 500 watts continuous at 16 ohms from 20Hz to 20kHz with less than 1% total harmonic distortion (typically less than .05% at 1 watt). Actual maximum power available (at the point of clipping) is dependent upon the following: 1) power line voltage. 2) power line condition (ie: regulation, distortion). 3) type and brand of power output tube used. Typical power under average circumstances will be around 550 watts. Maximum power under ideal conditions will be around 600 watts. POWER BANDWIDTH: (-3dB points) 12Hz to 80kHz. FREQUENCY RESPONSE: (-3dB points at 1 watt) 2Hz to 200 kHz. INPUT SENSITIVITY: 2.0V RMS balanced for rated output. INPUT IMPEDANCE: 200K ohms balanced. OUTPUT REGULATION: Approximately 0.5dB 16 ohm load to open circuit (Damping factor approximately 16). OVERALL NEGATIVE FEEDBACK: 12dB. POWER REQUIREMENTS: 105–125VAC 60Hz (210–250VAC 50Hz) 1600 watts at rated output, 2200 watts maximum, 800 watts at idle, 300 watts standby. TUBES REQUIRED: 8 Matched pair 6550C Power Output; 4-6550C Regulators; 3-6N1P Input/Follower; 8-6H30 Driver. The REFERENCE 600MKII has sufficient bias adjustment range to allow the use of any of the following output tube types: 6550, 6550B, 6550C, KT88, KT90, KT91, KT100. The REFERENCE 600MKII as supplied from Audio Research is equipped with the Russian 6550C, which is our current choice for reliability and long service. DIMENSIONS: 19" (48.3 cm) W x 10.5" (26.7 cm) H x (29.5" (74.9 cm) D. Handles extend 1.5" (3.8 cm) forward. WEIGHT: 170 lbs. (77.2 kg) Net; Shipped in pairs, 495 lbs. (225 kg) per pair. Specifications subject to change without notice. Learn More
    $9,999.00

  • Cary Audio 805AE Anniversary Edition NEW, full warranty

    Cary Audio 805AE Anniversary Edition NEW, full warranty

    Cary Audio 805AE Anniversary Edition NEW, full warranty Learn More
    $7,350.00

  • VTL Deluxe 300 watt mono amplifiers

    VTL Deluxe 300 watt mono amplifiers

    One owner since new..., these will be recapped and given to you, price is per pair Description: Tubed monoblock power amplifier. Rated power: 300W (no load specified). Power bandwidth: not specified. Frequency response: not specified. Sensitivity: 775mV RMS. Source impedance: 0.1 ohm. Dimensions: 19" W by 10" H by 10" D. Weight: 75 lbs each. Learn More
    $3,100.00

  • Cello HTA-3  3 channel amplifier

    Cello HTA-3 3 channel amplifier

    Cello HTA-3 channel amplifier 200 watts / channel x 3 channels, rare Learn More
    $3,999.00

  • Hafler DH220

    Hafler DH220

    Hafler DH220, only one left for sale The DH-220 circuit is a refinement of the DH-200 design, a Hafler landmark which has achieved worldwide recognition, and has elicited glowing reviews since its 1979 introduction. As in the DH-110 preamplifier, particular attention has been paid to component quality, using polypropylene or film capacitors wherever feasible, for example, for superior sound. Combining the latest power MOSFET technology with uniquely simple and effective circuit topology reduces distortion of all types, and at all power levels, over the full audio frequency spectrum, to the vanishing point. Specifications Power output: 115 watts per channel into 8Ω (stereo) Frequency response: 6Hz to 60kHz Total harmonic distortion: 0.02% Damping factor: 60 Input sensitivity: 1.55V Signal to noise ratio: 100dB Semiconductors: 26 x transistors, 8 x MOSfet, 29 x diodes, 4 x zener diodes, 1 x diode bridge Dimensions: 5-1/8 x 16 x 10-1/2 inches Weight: 26lbs Learn More
    $290.00

  • Mcintosh 2205 new restoration from original owner.

    Mcintosh 2205 new restoration from original owner.

    Mcintosh 2205 just recapped We are currently restoring two examples of the 2205 and a single 2015 amplifier right now. New caps, lubrication, bulbs,etc. Original owner on all. Power output: 200 watts per channel into 8Ω (stereo), 400W into 8Ω (mono) Frequency response: 10Hz to 100kHz Total harmonic distortion: 0.1% Damping factor: 16 Input sensitivity: 0.75V Signal to noise ratio: 95dB Speaker load impedance: 1Ω to 8Ω Learn More
    $1,999.00

  • Krell KAV-150a low profile stereo or mono amplifier ALL SOLD!

    Krell KAV-150a low profile stereo or mono amplifier ALL SOLD!

    Krell KAV150a recapped so they sound and work like new. 120 day warranty. ALL SOLD! Learn More
    $999.00

  • Krell Chorus 5200

    Krell Chorus 5200

    Latest model. Exchanged for 7200, like new condition $8500 retail Learn More
    $5,900.00

  • ASR Emitter II Exclusive 4 chassis integrated amplifier

    ASR Emitter II Exclusive 4 chassis integrated amplifier

    ASR Emitter ii Exclusive with gold heatsink option Description: Solid-state, multi-chassis, integrated amplifier with remote control. Maximum output power: 280Wpc into 8 ohms (24.5dBW), 500Wpc into 4 ohms (24dBW), 900Wpc into 2 ohms (23.5dBW), 1400Wpc into 1 ohm (22.4dBW). Frequency response: 0.2Hz–500kHz, –3dB. Distortion: <0.02%, 50mW to 1dB under maximum RMS output at 1kHz; <0.1%, 20Hz–20kHz. Input impedance: 10k ohms. Input sensitivity (for 150W into 8 ohms): level "61," 2.0V; level "76," 400mV. Voltage Gain: up to 28dB in position 1, up to 43dB in position 2, depending on volume setting. Signal/Noise Ratio: >90dB ref. 1W/8 ohms. Dimensions: Amplifier: 22.4" (570mm) W by 9.1" (230mm) H by 17.3" (440mm) D. Weight: 103 lbs (47kg). Two power supplies (each): 16.9" (430mm) W by 5.9" (150mm) H by 15.6" (400mm) D. Weight: 70.6 lbs (32kg). Battery pack: 16.9" (430mm) W by 5.9" (150mm) H by 15.6" (400mm) D. Weight: 57.3 lbs (26kg). original four boxes with packing, just recapped and ready to go (not the 56 filter caps, no need to change those) six month warranty THIS SOUNDS SPECTACULAR! Learn More
    $11,999.00

  • Halcro MC50 5 channel amp

    Halcro MC50 5 channel amp

    Halcro MC50 Halcro has made big waves in the industry in a short period of time, including a Stereophile cover that glossed the Australian company's dm58, "The Best Amplifier Ever!" Ahem. How's that for an attention getter? Halcro's efficient, universal switch mode, power factor corrected amps would seem tailor made for home theater, and now the MC50 is here to prove it. Five channels rated (strangely) at 350-Watts into 4 ohms (and, I'm guessing, somewhat less into the more traditional 8 ohms) are on tap here in a box that's attractive if just a little less sci-fi than Halcro's high-end monoblocks. http://www.avrev.com/home-theater-power-amplifiers/multi-channel-amplifiers/halcro-mc50-multi-channel-power-amplifier-3.html Learn More
    $2,000.00

  • Cello Duet 350 stereo

    Cello Duet 350 stereo

    Cello Duet 350 stereo, bench tested Owner's manual: http://www.matthew-james.net/Customer-Content/WWW/CMS/files/Duet-350-Owners.pdf Learn More
    $4,999.00

  • Krell KSA300s

    Krell KSA300s

    Krell KSA300s recapped 1/18 inquire for trucking rate Learn More
    $3,700.00

  • Rotel RB-1050

    Rotel RB-1050

    Rotel RB-1050 Ideal for demanding custom installations, the ultrastable RB-1050 combines audiophile sound quality and “bullet-proof” circuitry. A multi-mode amplifier, the RB-1050 develops 70 watts per channel for stereo reproduction. Individual sensitivity adjustments and “auto on” signal sensing circuitry allows use with a variety of distribution devices or processors. Buffered line level outputs allow multiple amplifiers to “daisy chain” from a single source. The toroid-based power supply and high damping factor ensure precise control of virtually all speakers. 12 volt “trigger” jacks and a detachable AC cord make this amplifier ideal for remote operated distributed audio systems. A front panel LED array shows clipping and protection modes for quick system analysis. Power Configurations: 2 x 70 watts Watts/Channel: all channels driven, unbridged, 8 ohm load, 20 to 20k Hz, 0.06% THD 70 watts THD (20-20,000Hz): cont. rated power one-half rated power one watt per channel 0.03%, maximum 0.03%, maximum 0.03%, maximum IM Distortion (at rated ower, 60Hz:7kHz = 4:1): 0.03%, maximum Damping Factor (8 ohms): 500 Input Sens. / Impedance: 1.0V / 33 kohms Frequency Response: 10-100kHz (±1dB) S/N Ratio (IHF A): 116dB Power Consumption: 250 watts Dimensions (W x H x D): 433 x 92 x 334mm 17 1/8 x 3 5/8 x 13 1/8" Front Panel Height: 80 mm, 3.1" Learn More
    $285.00

  • Krell Altair

    Krell Altair

    Krell Altair Reference $5500 low profile amplifier with separate power supply from the 1990's. Original boxes Designed as a reference amplifier for apartment sized systems. Power suppy caps just recapped. Learn More
    $2,370.00

  • Krell S275  in BLACK

    Krell S275 in BLACK

    Krell S275 retail price is $5500 US, we can ship this in any voltage. These have never been sold to a consumer. 4 available price is for each black unit The S-275 is a flexible design boasting 275 watts/channel in stereo mode. A switch on the rear panel converts the S-275 to a 550 watt mono amplifier. The S-275 is a half wide design allowing two amplifiers to fit in the same space as a normal sized amplifier. In that same space, five S-150m amplifiers can reside as they are only 3.4" wide. FREQUENCY RESPONSE 20 Hz–20 kHz +0 dB, -0.08 dB - Stereo +0 dB, -0.12 dB - Mono SIGNAL-TO-NOISE RATIO “A” weighted 115 dB TOTAL HARMONIC DISTORTION (THD) 1 kHz <0.03% 20 kHz <0.20% GAIN Selectable, 25.8 or 19.8 dB - stereo Selectable, 31.8 or 25.8 dB - mono INPUT SENSITIVITY Selectable, 2.4 V or 4.8 V - stereo Selectable, 1.7 V or 3.4 V - mono INPUT IMPEDANCE 20 kOhms single-ended 20 kOhms balanced OUTPUT IMPEDANCE <0.067 Ohms - stereo <.15 Ohms - mono POWER CONSUMPTION Idle 80 W - stereo, 65 W mono Max. 1,900 W TRANSFORMER 1,650 VA INPUTS 1 pair balanced via XLR connectors Learn More
    $2,600.00

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