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Power Amplifiers

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  • Parasound Halo A21 2 Channel Power Amplifier  2 available

    Parasound Halo A21 2 Channel Power Amplifier 2 available

    Parasound Halo A21 2 Channel Power Amplifier Continuous power output: 250 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, all channels driven 400 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, all channels driven 750 watts RMS x 1, 20 Hz - 20 kHz, 8 Ω Current capacity: 60 amperes peak per channel Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt Total harmonic distortion: < 0.2 % at full power IM distortion: balanced 16 V rms < 0.04 % Slew rate: > 130 V/µsecond Dynamic headroom: > 1.5 dB Interchannel crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHz Input sensitivity: 1 V for 28.28 V, THX Reference Level Input impedance: 33 k Ω unbalanced; 66 k Ω balanced S/N ratio: 112 dB, input shorted, IHF A-weighted Damping factor: > 1100 at 20 Hz Voltage: 110V - 120V Dimensions: 17-1/2" w x 7-5/8" h x 20" d, 7" h without feet Net weight: 60 lb. Learn More
    $1,895.00

  • Nakamichi Stasis PA 7 Stereo Power Amplifier

    Nakamichi Stasis PA 7 Stereo Power Amplifier

    Nakamichi Stasis PA 7 Stereo Power Amplifier Power output: 200 watts per channel into 8Ω (stereo) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.1% Damping factor: 60 Input sensitivity: 2V Signal to noise ratio: 120dB Semiconductors: 16 x output transistors per channel Dimensions: 435 x 200 x 421mm Weight: 27kg Learn More
    $1,895.00

  • Krell KAV-2250

    Krell KAV-2250

    Krell KAV-2250 silver with box last one, inquire to make sure still available Learn More
    $1,950.00

  • NAIM Audio NAP 250. 2 Power Amplifier

    NAIM Audio NAP 250. 2 Power Amplifier

    Damping factor into 8 36 Signal to noise ratio ref 100W 8 A-weighted 111dB Signal to noise ratio ref 1W 8 A-weighted 91dB Input signal for clipping 1V RMS Peak current into 1 (1kHz 1mS) +/-28 amps peak (780W peak power) Burst power 2 300 Watts 2 @1% THD+N (1kHz for 20mS, repeat 500mS IHF) Audio Inputs 2 x True balanced via XLR, 47k 34k singled ended via legacy adaptor lead Audio Outputs Crosstalk 60 dB THD + N at 2/3rds full power 8 @1kHz (0.013%) Power Output 100 Watts 8 @0.1% THD+N (100W @0.1%) 190 Watts 4 @1% THD+N Frequency Response -3dB @ 1.4Hz to 100kHz Gain +29 dB Physical Weight 37.04lbs (16.8kg) Dimensions (HxWxD) 35/8x17x121/2" (9.15x43.2x31.75cm) Power Mains Supply 115V or 230V, 50/60Hz Power Consumption Passive consumption: 26W (idle) Standby consumption: <0.5W Product Type Type Power Amplifier Learn More
    $1,995.00

  • Mcintosh 2205 new restoration from original owner.

    Mcintosh 2205 new restoration from original owner.

    Mcintosh 2205 just recapped replaced amp coupling caps Original owner on all. Wood case $350 plus shipping extra. 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

  • Perreaux PMF5150B 500 watts/channel
    $1,999.00

  • T+A PA1230R

    T+A PA1230R

    PA1230R Integrated Amplifier At a time when many manufacturers are using microprocessor technology to bury functions below several software layers so you need to have an owners’ manual close at hand if you want to access them, T+A has delivered an amplifier where each function has its own control, properly and clearly labelled, on the front panel. This necessarily means there are quite a few knobs and buttons, but rarely has an amplifier been so easy to use. This is especially the case because the PA1230R is one of the very few amplifiers available that allows you to adjust bass and treble individually for the left and right channels. Learn More
    $2,000.00

  • Krell KAV-500 5 Channel Amplifier

    Krell KAV-500 5 Channel Amplifier

    sold 12/23 another kav500/5 available 1/24 Krell KAV-500/5 Krell KAV-500 Multichannel Amplifier 100 Watts/Channel into 8 Ohms, 200 Watts into 4 Ohms 400 Watts/Channel bridged (2 channels) Mfr FR 20 Hz - 20 kHz ± 0.5 dB THD < 0.03% Input Impedance 100 kOhms Size: 6.25" H x 19" W x 17" D Weight: 47 pounds Learn More
    $2,000.00

  • Odyssey Audio upgraded Kismet in Khartago chassis  Monoblock Pair

    Odyssey Audio upgraded Kismet in Khartago chassis Monoblock Pair

    These have the upgraded black circuit boards with high end caps from symphonic line, high quality parts internally. these are cut and paste from the web specs I found. Hope they are accurate 1 x 110 Watts RMS @ 8 Ohms (each) 2 Ohm load stable Class A/AB 1 - 600,000 Hz frequency range 120,000µF memory (each) 120 amps current delivery <0.04% THD (not audible) >800 continuous damping factor Input impedance 22K ohms DC offset <1 mV RCA inputs 400 VA Plitron transformer (each) Sanken Epitaxial Planar Transistors 2SA1216 & 2SC2922 Anti vibration dual thickness PCB Power consumption when idle ±30Watts 4 internal fuses 250V/6.3A, 5x20mm, fast blow 18"W x 16"D x 4 1/4"H weighs 32 pounds. Learn More
    $2,195.00

  • Classe Audio Twenty Five 25 Stereo Power Amplifier

    Classe Audio Twenty Five 25 Stereo Power Amplifier

    Power output: 250 watts per channel into 8Ω (stereo), 1000 watts into 8Ω (mono) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.1% Input sensitivity: 1.6V Signal to noise ratio: 100dB Speaker load impedance: 4Ω (minimum) Dimensions: 19 x 20.75 x 8 inches Weight: 65lbs Learn More
    $2,200.00

  • Audio Research SD135

    Audio Research SD135

    Audio Research SD135 excellent condition, original box $5000 retail in 1/23 Learn More
    $2,200.00

  • Goldmund SR150 Stereo Power Amplifier

    Goldmund SR150 Stereo Power Amplifier

    Power output: 200 watts per channel into 8Ω (stereo) Frequency response: 10Hz to 1000kHz Total harmonic distortion: 0.01% Input sensitivity: 0.75V Signal to noise ratio: 100dB Dimensions: 440 x 330 x 90mm Weight: 13kg Year: 2005 Learn More
    $2,300.00

  • Goldmund A2 modules (original, new gold)

    Goldmund A2 modules (original, new gold)

    Goldmund A2 modules (original, new gold) I purchased these sequential modules from the former Goldmund distributor they are a NOS (new old stock pair) Learn More
    $2,300.00

  • 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. IN REPAIR Learn More
    $2,370.00

  • Krell KSA80 Balanced

    Krell KSA80 Balanced

    Krell KSA80B One owner all original excellent condition We can recap for $500 additional if desired before shipping. Later balanced version Learn More
    $2,400.00

  • Mark Levinson No. 27 Stereo Power Amplifier

    Mark Levinson No. 27 Stereo Power Amplifier

    Mark Levinson No. 27 Stereo Power Amplifier Power output: 100 watts per channel into 8Ω (stereo) Frequency response: 4Hz to 122kHz Total harmonic distortion: 0.1% Gain: 26 dB Dimensions: 444.5 x 407.8 x 185.6mm Year: 1989 75Lbs Learn More
    $2,495.00

  • Goldmund VSR Mono Power Amplifiers

    Goldmund VSR Mono Power Amplifiers

    Goldmund VSR Mononoblock Power Amplifiers Silver Faceplate Great Condition Learn More
    $2,495.00

  • Threshold SA/3 Class A

    Threshold SA/3 Class A

    Threshold SA/3 50watt/channel Stasis Pure Class A Power Amplifier. This amplifier, designed by Nelson Pass and Built in the USA by Threshold employs pure Class A circuitry at every stage - there is no corrective feedback loop Learn More
    $2,500.00

  • Crown Reference 1

    Crown Reference 1

    Crown Reference 1 in service 9/21 Inquire before purchasing Reference I (120 V, 60 Hz models) The Crown® Studio Reference I power amplifier shall be a solid-state two-channel model employing multi-mode (AB+B) grounded bridge(TM) output circuitry with a variable impedance (VZ) power supply for each channel. The outputs shall be switchable as stereo, bridged-mono or parallel-mono modes of operation. The bridged-mono mode shall bridge the outputs to provide increased output voltage. The parallel-mono mode shall parallel the outputs to provide increased output current. The output impedance of each channel shall be less than 10 milliohms in series with less than 2 microhenries in stereo mode. The variable impedance power supplies shall reduce unnecessary voltage across the output devices by automatically switching to a parallel mode when less voltage is required by the output circuitry and to a series mode when more voltage is required. The amplifier shall contain protection circuitry which limits the drive level placed on the output devices before their SOA (Safe Operating Area) is exceeded. This protection circuitry shall calculate the instantaneous voltage across and current through the output devices while factoring in their simulated junction temperatures to predict how close they are to their operating limits. This protection will be called “ODEP.” The amplifier shall contain controlled slew-rate voltage circuitry to protect it against radio frequency interference burnouts. It shall also be protected from current overload at its output stage. The slew rate of the amplifier shall be greater than 30 volts per microsecond in stereo mode. The amplifier shall temporarily go into a stand-by mode if its power transformer becomes excessively hot and shall automatically resume normal operation once it has cooled to a safe operating temperature. Front-panel controls shall include an enable on/off switch and a detented input level control for each channel. Rear-mounted controls shall include a ground lift switch to isolate the signal ground from the chassis ground, a switch which selects between stereo, bridged-mono and parallel-mono modes of operation and a reset switch for the AC mains circuit breaker. Internal controls shall include an input sensitivity switch to select between 0.775 V, 1.4 V or a fixed voltage gain of 26 dB for full rated output. A Crown P.I.P. and P.I.P.2-compatible expansion connector shall be provided behind an access panel in the rear to accept auxiliary input modules. It shall be fully compatible with the Crown IQ System. Front panel indicators shall include an amber power enable indicator, an amber ODEP protection system indicator for each channel which shall normally be illuminated to confirm the availability of reserve thermodynamic energy and which shall dim in proportion to limiting when the power demands of the output stages have been exceeded, a green IOC indicator for each channel, and a green Signal indicator for each channel which shall normally flash at moderate intensity to show the presence of an audio signal. The power amplifier shall meet or exceed the following performance criteria. Input sensitivity for rated output: 26 dB voltage gain (unbalanced). Rated FTC output in stereo mode with less than 0.1% THD: 780watts per channel (20 Hz to 20 kHz) into 8 ohms. Hum and noise: at least 120 dB (A weighted) below full rated output power. Phase response: +5 to –15 degrees from 20 Hz to 20 kHz at 1 watt. Frequency response: 20 Hz to 20 kHz, 0.1 dB at 1 watt into 8 ohms per channel in stereo mode. Damping factor: greater than 20,000 from 10 to 200 Hz into 8 ohms. Intermodulation distortion (SMPTE): less than 0.005% from full bandwidth power to 78 watts rising linearly to better than 70 dB at 20 kHz. Harmonic distortion: less than 0.02% at rated low-distortion 1 kHz power. The amplifier shall be safe when driving any kind of load—even highly reactive ones. The power requirements shall be 120 VAC at 60 Hz. At idle, the amplifier shall draw 90 watts or less. The amplifier chassis shall be constructed of steel with a durable black finish and shall be designed for flow-through fan-assisted ventilation from the front panel to the side panels. The amplifier shall have an aluminum front panel with super-gloss Imron finish and Lexan overlay. The dimensions of the amplifier shall allow for 19 inch (48.3 cm) EIA standard (RS- 310-B) rack mounting. The amplifier shall be 7 inches (17.8 cm) tall, 16 inches (40.6 cm) deep behind the rack-mounting surface, and 2.75 inches (7 cm) in front of the rack-mounting surface. The amplifier shall weigh 60 pounds, 11 ounces (27.6 kg) and shall have a center of gravity approximately 6 inches (15.2 cm) behind the front panel. The amplifier shall be designated the Crown Studio Reference Learn More
    $2,500.00

  • Mcintosh MC7150 Digital Dynamic Stereo Power Amplifier sold ?
    $2,500.00

  • Krell FPB250M mono EACH AMP

    Krell FPB250M mono EACH AMP

    Krell FPB250M excellent like new cosmetics Recapped! factory boxes MULTIPLE AVAILABLE Power output: 250W into 8Ω (mono) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.03% Gain: 26.4 dB Input sensitivity: 2.14V Signal to noise ratio: 114dB Dimensions: 318 x 267 x 406mm Weight: 31kg Learn More
    $2,600.00

  • Mcintosh MC2505

    Mcintosh MC2505

    Mcintosh MC2505 in beautiful condition, one owner in 3/23 New box and packing ordered from Mcintosh 3/23 optional wood case pictured $350 additional plus shipping Learn More
    $2,600.00

  • Devialet Expert 200

    Devialet Expert 200

    Devialet Expert 200, original box/packing, excellent condition Learn More
    $2,700.00

  • Mark Levinson 23 recapped 100v (Japan ideally)  sold ?

    Mark Levinson 23 recapped 100v (Japan ideally) sold ?

    excellent condition Mark Levinson 23 200 watt/channel amplfiier, 100V set at present, can be changed Description: Solid-state stereo power amplifier. Rated power output: 200Wpc continuous into 8 ohms (23dBW) with less than 0.1% THD, 400Wpc continuous into 4 ohms (23dBW) with less than 0.2% THD, both from 20Hz–20kHz, both channels driven. Damping factor: greater than 600 at 50Hz, 8 ohms (equivalent to an output impedance of 0.013 ohms). Frequency response: 4Hz–140kHz, —dB. Input impedance: 50k ohms shunted by 1.5nF. Voltage gain: 26dB (load not defined). Input sensitivity: 141mV for 1W output. Dimensions: 19" (483mm) W by 8.25" (210mm) H by 15.7" (399mm) D. Shipping weight: 105 lbs (48kg). Learn More
    $2,700.00

  • Mark Levinson 332

    Mark Levinson 332

    Mark Levinson 332 picked up 1/22 from original owner Learn More
    $2,799.00

  • Anthem P2

    Anthem P2

    Anthem P2 retail $4500 in very good condition Learn More
    $2,800.00

  • Mcintosh MC7270   three  available inquire

    Mcintosh MC7270 three available inquire

    Mcintosh MC7270 One in excellent 8/22 One in service 6/22 awaiting new factory glass, main output filter caps will be changed out also. Original box from Mcintosh if shipped, inquire for freight cost Too fragile for Fedex or UPS ground. Learn More
    $2,850.00

  • Balanced Audio Technology VK-250

    Balanced Audio Technology VK-250

    Balanced Audio Technology VK-250, excellent condition Learn More
    $2,899.00

  • Mark Levinson 331

    Mark Levinson 331

    Mark Levinson 331 recently serviced by factory authorized center Learn More
    $2,900.00

  • Krell KMA-100 MK2 Monoblocks

    Krell KMA-100 MK2 Monoblocks

    Krell KMA-100 MK2 Monoblocks Class A 100W/Channel Silver Learn More
    $2,950.00

  • Goldmund 8.5 with a2 modules
    $2,950.00

  • Plinius SA102

    Plinius SA102

    Plinius SA102 One owner, all excellent condition Learn More
    $2,999.00

  • Krell FPB350m single mono
    $2,999.00

  • Mcintosh MC2002 Stereo Power Amplfier

    Mcintosh MC2002 Stereo Power Amplfier

    Mcinttosh MC2002 200 watt channel must truck , if not local box must be ordered from Mcintosh Learn More
    $3,000.00

  • Krell KSA 200B Stereo Power Amplifier

    Krell KSA 200B Stereo Power Amplifier

    Inputs: RCA and Balanced Power output: 200 watts per channel into 8Ω (stereo); 400w/ch into 4 ohms, 800w/ch into 2 ohms and 1600w/ch into 1 ohm Learn More
    $3,000.00

  • Mark Levinson 383 integrated with remote

    Mark Levinson 383 integrated with remote

    Mark Levinson 383 with remote two available as of 6/23 Learn More
    $3,100.00

  • Krell KSA150

    Krell KSA150

    Krell KSA150 fresh recap on one 12/23 2 available the other not recapped excellent cosmetics on that one. Learn More
    $3,100.00

  • Jeff Rowland Research Model 3 Monoblock Pair
    $3,150.00

  • Mark Levinson No. 27.5  Stereo Power Amplifier

    Mark Levinson No. 27.5 Stereo Power Amplifier

    Mark Levinson No. 27.5 Stereo Power Amplifier Power output: 100 watts per channel into 8Ω (stereo) Frequency response: 4Hz to 122kHz Total harmonic distortion: 0.3% Gain: 26.9 dB Dimensions: 483 x 185 x 360mm Weight: 43.1kg Year: 1992 Learn More
    $3,395.00

  • Spectral DMA-180 Stereo Power Amplifier

    Spectral DMA-180 Stereo Power Amplifier

    Spectral 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
    $3,500.00

  • Krell FPB300
    $3,500.00

  • Krell Evolution 400 Mono Amplifier
    $3,500.00

  • Krell FPB350mcx mono single amplifier ONE AMP ONLY

    Krell FPB350mcx mono single amplifier ONE AMP ONLY

    Krell FPB350mc one mono amp only excellent condition best shipped by truck, inquire Learn More
    $3,500.00

  • Jeff Rowland Model 7 series mono amplifiers (two pairs in service)

    Jeff Rowland Model 7 series mono amplifiers (two pairs in service)

    Jeff Rowland Model 7 two pairs in service 1/24 inquire. one pair silver, one pair The shipping must be quoted. Please send you postal code. Learn More
    $3,700.00

  • Krell KSA250 improved

    Krell KSA250 improved

    Krell KSA250 with KSA300s internal boards overhaul completed 8/23 Learn More
    $3,700.00

  • 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

  • Perreaux Prisma 350

    Perreaux Prisma 350

    Perreaux Prisma 350 owner's manual: https://mail.google.com/mail/u/0/#search/prism+perreaux?projector=1 Learn More
    $4,300.00

  • Mark Levinson No 433 three channel

    Mark Levinson No 433 three channel

    Mark Levinson No 433 with box/packing. Not used last ten years Learn More
    $4,300.00

  • Mcintosh MC2300 rare gold faceplate

    Mcintosh MC2300 rare gold faceplate

    Mcintosh MC2300 rare gold faceplate In 9/22 we will recap this unit before shipping pics soon Learn More
    $4,400.00

  • Spectral DMA250 inquire

    Spectral DMA250 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

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