Power Amplifiers

Krell Theater 7 XD $11000 retail NEW NEVER OPENED Multi Channel Amplifier Color: Black Frequency response 20 Hz to 20 kHz +0, –0.11 dB Signal-to-noise ratio >101 dB, wideband, unweighted, referred to full power output >114 dB, “A”-weighted Gain 25.5 dB Total harmonic distortion <0.02% at 1 kHz, at 100 W, 8 Ω, two channels driven; <0.20% at 20 kHz, at 100 W, 8 Ω, two channels driven; Input impedance Single-ended: 27 kΩ; Balanced: 54 kΩ; Input sensitivity Single-ended or balanced: 1.50 V RMS Output power, per channel 120W RMS at 8 Ω, 2 channels driven 115W RMS at 8 Ω, 3 channels driven 110W RMS at 8 Ω, 5 channels driven 105W RMS at 8 Ω, 7 channels driven 210W RMS at 4 Ω, 2 channels driven 190W RMS at 4 Ω, 3 channels driven 165W RMS at 4 Ω, 5 channels driven 140W RMS at 4 Ω, 7 channels driven Output voltage 93 V peak-to-peak 33 V RMS Output current 10 A peak Output impedance <0.025 Ω, 20 Hz to 20 kHz Damping factor >320, 20 Hz to 20 kHz, referred to 8 Ω Power consumption Standby: 1 W Idle: 66 W Maximum: 2000 W Heat output Standby: 3.42 BTU/hr. Idle: 225 BTU/hr. Maximum: 2200 BTU/hr. Inputs 7 single-ended via RCA connector 7 balanced via XLR connector Outputs 7 pairs five-way binding posts Remote connectors One 12 VDC input (12 V trigger) via 3.5 mm jack Dimensions 17.1 in. W x 7.65 in. H x 21.10 in. D Weight 80 lbs. Learn More

Krell S-1500 5 Channel Amplifier Black Freshly recapped 5 Channel Amplifier Very Good Condition Original Box We also have a second black unit available 5/24 Based on a rock solid, linear power supply design, the S –1500 is virtually impervious to speaker demand or AC line fluctuations. A 1,500 VA toroidal transformer and robust, 80,000-microfarad array of quick -charging filter capacitors offer enormous energy storage, avail- able in an instant. This supply is designed for massive current delivery while maintaining an ultra-low noise profile. Surface mount technology is utilized in the amplifier channels to achieve the high circuit density required for wide bandwidth performance. Eight high- speed power devices per channel deliver 150 W into 8 Ohms and 300 W into 4 Ohms. The amplifier is stable at any load impedance. Krell Current Mode TM, fully balanced topologies, are utilized for all amplifier channels for the lowest noise and greatest detail retrieval. Class A circuitry is utilized in the input, pre -driver, and driver stages to provide the most accurate signal path. All channels support balanced and single -ended inputs. High quality, 5-way binding posts allow speaker connections via bare wires, spade lugs, or banana plugs. A modular platform provides an upgrade path for the S–1500/3, S –1500/5 and S –1500/6 amplifiers, enabling additional channels to be installed at any time. The base platform includes input and speaker connections for up to 7 channels, making upgrades a simple matter when desired. • 80,000 Microfarads of Filter Capacitance • 12 VDC Triggers • 17.3W,5.7H,19.8D Learn More

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

Burmester 909 Series 5 excellent cosmetics, factory crate inquire for trucking charges FEATURES • Bridgeable for mono operation by external mono-adapters. May also be ordered in internal mono configuration from the factory • Completely balanced signal path design like all Burmester components • Input stages in Burmester Class A X-amp design • DC-coupled signal path without distorting capacitors • Generously dimensioned power supply for high current output • Effortless control of any loudspeaker through a high damping factor over the full frequency range, even at highest volume levels • Stable operation into all loads • Remote on/off feature when used with Burmester power pre-amps • Processor-controlled error diagnosis Connections: • Balanced inputs (stereo/mono) • Unbalanced input using supplied adapters (stereo mode only) • 10V DC input for remote on/off switching by Burmester pre-amps • Loudspeaker output terminals (stereo/mono) Specifications • Dimensions (WxHxD) 485 mm x 515 mm x 485 mm (19 inch x 20.3 inch x 19 inch) • Weight app. 80kg (170 lbs.) • Power output Stereo: 2 x 600 W (4 Ω), 2 x 1.250 W (1 Ω) • (at appropriate AC input) Mono: >1x 1.930 W (4 Ω), >1x 3.200 W (1 Ω) • Continous peak current 65 A • Damping factor >1000 • Noise suppression >81 dB • Input sensitivity 730 mV for full gain 320 mV for 100 W into 4 Ω load • Frequency response 0-200 kHz (-3dB) • 20 selected power transistors per channel • Rise time (stereo/mono) 1,4 μs into 4/8 Ω load • 1,9 μs into 1 Ω load • Over-dimensioned power supply with 160.000 μF filtering and a 3,5 kW torodial transformer. Learn More

Balanced Audio Technology REX In late 1/23 original box top of the line Learn More

Power output: 60 watts per channel into 8Ω (stereo) Frequency response: 10Hz to 60kHz Total harmonic distortion: 0.1% Damping factor: 150 Input sensitivity: 1V Signal to noise ratio: 90dB Learn More

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

SUMO The Nine + Differential Power Amplifier Sumo gives you the real thing. The nine is a pure class A power amplifier that remains class A even when driving 4 Ohm loudspeakers. The Nine's approach to class A is so unique it earned a US patent - an amazing achievement for an audio component. Sumo's exclusive class A engineering provides all the advantages and none of the disadvantages of typical class A designs. The unit features an all aluminium anodized chassis with massive extruded heat sinking and built in whisper fan for efficient heat dissipation. Military grade G-10 glass epoxy printed circuit boards throughout. Power supply incorporating 1.4KW shielded toroidal transformer and 42,000 microfarad computer grade filter capacitors, resulting in supply voltage regulation better than 3%. Learn More

Sonic Frontiers SFS80 in 10/24 one owner since new (estate) Learn More

Audio Research VT200 Excellent condition in and out, good Genelec tubes shipping by freight receommended Learn More

AMC 2445 - 2/4 Channel Power Amplifier Power output: 90 watts per channel into 8Ω (stereo), 45 watts per channel into 8Ω (4 channels) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.03% Damping factor: 100 Input sensitivity: 0.866V Speaker load impedance: 4Ω (minimum) Dimensions: 430 x 112 x 288mm Weight: 9.5kg Year: 2001 Learn More

Power output: 100 watts per channel into 8Ω (stereo) Frequency response: 1Hz to 100kHz Total harmonic distortion: 1% Damping factor: 11 Gain: 23.5 dB Input sensitivity: 1.9V Signal to noise ratio: 95dB Speaker load impedance: 4Ω to 8Ω Valve complement: 8 x 6550C, 8 x 6922 Dimensions: 483 x 222 x 495mm Weight: 29.5kg Learn More

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

Goldmund Telos 300 Stereo Power Amplifier Silver Excellent Condition Original Box And Accessories Learn More

NAP 300 Power Amplifier And 300 Power Supply: Analogue Inputs: (2) XLR Input Impedance: 18k Ohms Speaker Outputs: (2) L & R, 4mm "banana" sockets Power output: Continuous, 8 Ohms: 90 Watts per channel Transient: 500VA Quiescent Consumption: 27VA Voltage Gain: +29dB Frequency response: -3dB @ 2Hz and 70kH Minimum Load Impedance: 2 Ohms Mains supply: 100-120V or 220-240V, 50/60Hz Dimensions (H x W x D): NAP 300 and the NAP 300PS - 87 x 432 x 314mm Shipping Specs for the NAP 300 Stereo Power Amplifier: Dimensions: 23” D x 19” W x 9” H Weight: 28 lb Shipping Specs for the NA PS300 Power Supply: Dimensions:23” D x 19” W x 9” H Weight: 39 lb Learn More

Power output: 100 watts per channel into 8Ω (stereo) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.005% Damping factor: 100 Input sensitivity: 1V Signal to noise ratio: 107dB Dimensions: 425 x 170 x 285mm Weight: 16kg Learn More

Plinius 8200P Stereo Power Amplifier Black Very Good Condition Learn More

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

Mark Levinson ML20 shippiing price is double the ship quote Learn More

Power output: 100 watts (mono) Frequency response: 20Hz to 20kHz Total harmonic distortion: 3% Signal to noise ratio: 95dB Speaker load impedance: 2Ω to 8Ω Valve complement: 4 x EL34, 2 x 12AT7 Dimensions: 400 x 300 x 180mm Weight: 22kg Learn More

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

Like new condition all packing and accessories sale pending 9/30/24 do not purchase Frequency response 20 Hz to 20 kHz +0, –0.08 dB <0.5 Hz to 100 kHz +0, –3 dB Signal-to-noise ratio >95 dB, wideband, unweighted, referred to full power output >115 dB, “A”-weighted Gain 26.2 dB Total harmonic distortion <0.04% at 1 kHz, at 200 W, 8 Ω <0.15% at 20 kHz, at 200 W, 8 Ω Input impedance Single-ended: 100 kΩ Balanced: 200 kΩ Input sensitivity Single-ended or balanced: 1.96 V RMS Output power 200 W RMS at 8 Ω 360 W RMS at 4 Ω Output voltage 113 V peak-to-peak 40 V RMS Output current 13.4 A peak Slew rate 40 V/μs Output impedance <0.015Ω, 20 Hz to 20 kHz Damping factor >530, 20 Hz to 20 kHz, referred to 8W Power consumption Standby: 1 W Idle: 182 W Maximum: 2100 W Heat output Standby: 3.4 BTU/hr. Idle: 623 BTU/hr. Maximum: 7182 BTU/hr. Inputs 5 single-ended via RCA connector 5 balanced via XLR connector Outputs 5 pairs binding posts Dimensions 17.1 in. W x 7.65 in. H x 21.10 in. D 434 mm W x 194 mm H x 536 mm D Weight 95 lbs., 43.2 kg (shipping) 85 lbs., 38.6 kg (unit only) Learn More

VTL MB-185 Monoblock Power Amplifier Output Power: Tetrode = 230 Watts Triode = 120 Watts T.H.D. 20 Hz - 20 kHz @ 230W: Tetrode = < 2.5% T.H.D. 20 Hz - 20 kHz @ 120W: Triode = < 2.5% Input Sensitivity @ 125 W: 1.7 V Input Impedance: 130,000 Ohms Optimum Load Range: 2 - 8 ohms S/N Ratio @ 125W, tetrode: -110 dB, 120 HZ S/N Ratio @ 60W, triode: -110 dB, 120 Hz Power Consumption: Idle = 180 W Full Power = 600 W Primarv Mains Fuse Rating: 100/120V = 10A Ceramic Slo Blo 220/240V = 5A Ceramic Slo Blo B+ Fuse Rating: 1A ceramic Slo Blo Dimensions - EACH: W = 19 inches (48cm) D = 12 inches (26cm) H = 9 inches (23cm) Weight - EACH: 56 lbs (25Kg) per monoblock {total 65 lbs (30 Kg) packed} Learn More

Mcintosh MC462 Like new cosmetics, works perfectly, factory box/manual/cord In 2/25 Learn More

Power output: 120 watts per channel into 8Ω (stereo) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.002% Damping factor: 130 Input sensitivity: 1.07V Signal to noise ratio: 127dB Speaker load impedance: 4Ω to 8Ω Dimensions: 435 x 165 x 425mm Weight: 14kg Year: 1984 Learn More

Lamm M2.1 mono amplifiers in 2/25 tested fine. Inquire for shipping options Price for shipping on site is for each amp. We need a second charge for shipping. Learn More

Power output: 120 watts per channel into 8Ω (stereo) Frequency response: 0Hz to 100kHz Total harmonic distortion: 0.008% Damping factor: 70 Input sensitivity: 1V Signal to noise ratio: 115dB Dimensions: 440 x 138 x 344mm Weight: 13.5kg Learn More

Power output: 200 watts per channel into 8Ω (stereo) Frequency response: 1Hz to 100kHz Total harmonic distortion: 0.002% Damping factor: 200 Input sensitivity: 1.41V Signal to noise ratio: 124dB Dimensions: 435 x 380 x 133mm Weight: 13.7kg Learn More

Power output: 200 watts per channel into 8Ω (stereo), 600 watts into 8Ω (mono) Frequency response: 10Hz to 20kHz Total harmonic distortion: 0.09% Damping factor: 800 Gain: 27 dB Input sensitivity: 1.75V Signal to noise ratio: 110dB Semiconductors: 42 x transistors, 2 x zener diodes, 13 x diodes, 2 x IC, 2 x diode bridges Dimensions: 185 x 432 x 310mm Weight: 16kg Learn More

Power output: 140 watts per channel into 8Ω (stereo) Frequency response: 5Hz to 45kHz Total harmonic distortion: 0.09% Damping factor: 100 Gain: 28 dB Input sensitivity: 1.2V Signal to noise ratio: 95dB Speaker load impedance: 4Ω (minimum) Dimensions: 17 x 15.5 x 5.75 inches Weight: 31lbs Learn More

Power output: 200 watts per channel into 8Ω (3 channels) Frequency response: 5Hz to 45kHz Total harmonic distortion: 0.09% Damping factor: 400 Gain: 28 dB Input sensitivity: 1.4V Signal to noise ratio: 95dB Speaker load impedance: 4Ω (minimum) Dimensions: 17 x 5.75 x 15.5 inches Weight: 43lbs Year: 1998 Learn More

Power output: 100 watts per channel into 8Ω (stereo), 300 watts into 8Ω (mono) Frequency response: 4Hz to 100kHz Total harmonic distortion: 0.03% Damping factor: 180 Input sensitivity: 1V Signal to noise ratio: 110dB Speaker load impedance: 8Ω (minimum) Dimensions: 430 x 109 x 315mm Weight: 9.4kg Learn More

Power output: 60 watts per channel into 8Ω (stereo) Frequency response: 10Hz to 20kHz Total harmonic distortion: 0.04% Damping factor: 180 Gain: 27 dB Input sensitivity: 0.97V Signal to noise ratio: 110dB Semiconductors: 34 x transistors, 2 x zener diodes, 14 x diodes, 2 x IC, 2 x diode bridges Dimensions: 86 x 432 x 317mm Weight: 8.9kg Downloads Learn More

Mcintosh MI128 NEW! factory sealed $4000 retail Learn More