Power Amplifiers

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

Crown SA 2 Distinction Series Amplifier Very Good Condition Learn More

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

Kenwood L-07 For repair, selling the pair as is 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

Specifications Specification Value Shipping Weight 55 lbs (25kg) each Number Of Channels 12 Power Output All Channels Driven 50 watts RMS per channel (x 12) @ 8 ohms 75 watts RMS per channel (x 12) @ 4 ohms Power Output (Bridged) 100 watts per channel (x 6) @ 8 ohms Dynamic Headroom +1.9dB (x 12) @ 8 ohms +1.8dB (x 12) @ 4 ohms ±3.5 dB (x 6) @8 ohms (bridged) Total Harmonic Distortion <0.03% (20Hz-20kHz @ 8 ohms 50 watts) <0.06% (20Hz-20kHz @ 4 ohms 75 watts) <0.01% (1kHz @ 8 ohms 50 watts) <0.01% (1kHz @ 4 ohms; 75 watts) Signal To Noise Ratio 100dB below rated output (A-weighted) Input Sensitivity 700mV for 50 watts RMS @ 8 ohms Input Impedance 20k ohms Power Consumption 1800 watts maximum (4 ohms, full power) 10 watts idle (no signal) AC Fuse 10A (T10AH ~ 250V) Heat Output 2868 BTU/HR (full power) Available Options Rackmount version Dimensions With Feet (WxHxD) 16 3/4" x 9 1/2" x 16 1/2" (425mm x 241mm x 420mm) Rack Space Requirement 5U RMF Dimensions No Feet (WxHxD) Learn More

Five channels of amplification, THX certified, 100 watts rms output per channel at 8 Ohms Learn More

Marantz MM7055 5-Channel Power Amplifier Power output: 140 watts per channel into 8Ω (5 channels) Frequency response: 8Hz to 100kHz Total harmonic distortion: 0.09% Damping factor: 100 Gain: 29 dB Input sensitivity: 1.2V Signal to noise ratio: 105dB Dimensions: 440 x 183 x 384mm Weight: 15.7kg Learn More

Lexicon 501 same as Bryston 7Bst 500 watts/channel one mono amplifier Learn More

Crown D-150 excellent like new condiition Was in a rack since new. Learn More

Tru Audio MR1260 twelve channel power amplifier The MR1260 is a 12 channel, 6 zone amplifier that provides 60 watts RMS to each channel @ 8ohms or 80 watts at 4 ohms. Channel pairs can be bridged for 160 watts at 8 ohms. It features both a multi and single channel input bus with independent level controls for each channel. Has Auto -on signal sensing function. High quality Phoenix connectors allow the use of speaker cables of up to 14 gauge. Specifications: Channels: 12 channels, 6 zones Power output, continuous: 60 watts/ ch @ 8 ohms 80 watts/ ch @ 4 ohms Power output, short term: 100 watts/ ch Bridged power output: 160 watts/ ch @ 8 ohms Total Harmonic Distortion: 0.05% Signal to noise ratio: Great than 100dB Frequency range: 18 Hz. to 50k Hz. @+ - 2 dB Damping factor: Greater than 400 Input impedance: 20K ohms Certifications: CE, CSA Dimensions: 5 ¾` H, 17` W, 17` D Weight: 46.9 lbs Learn More

mAMP Features Utilizes latest generation (ASX2) ICEpower® audio technology 250w in 8Ω 430w in 4Ω External selectable mains voltage 115/230VAC Idle power consumption 9.5w Thermal protection Differential, fully balanced Over current protection Sound optimized soft clip Robust construction Standard 12V DC Trigger Machined and anodized aluminum front panel Gold Plated unbalanced (RCA) input Neutrix Balanced (XLR) input 3rd Generation fully balanced input stage with impedance of 100k Compact size (8"W x 3.5" x 8"D) 8 lbs. Covered by a 5 YEAR WARRANTY mAMP Specs Typical THD+N 8Ω (10W out): 0.002% Power Output 8Ω @ 0.2% THD+N: 250W Power Output 8Ω @ 1.0% THD+N: 277W Power Output 4Ω @ 0.2% THD+N: 430W Power Output 4Ω @ 1.0% THD+N: 460W Output Idle Noise: <125µV Frequency Response 20Hz-20kHz: ± 0.1db Lower Bandwidth: 1.5Hz (All Loads) Balanced Input Impedance: 100kΩ Unbalanced Input Impedance: 100kΩ Dynamic Range: 111db Gain: 30db Sensitivity: 1.31V Output Impedance: 0.018Ω Min Load: 3Ω Max Output Current: 30A Idle Power Consumption: 9.5W Standby Power Consumption: <0.5W Learn More

Bryston 4b thx version Just recapped for like new sound and reliability Learn More

solid state amplifier, unused in over 20 years, very nice condition, tech checked 11/16 50 watts per channel minimum RMS (both channels operating) at 8 ohms from 1 Hz to 20 kHz with less than .25% total harmonic distortion. Typically less than .02% at rated power in midband. Approximate actual power available per channel at "clipping" (both ch. op.): 80 (4 ohms), 60 (8 ohms), 35 (16 ohms) Power bandwidth Frequency response 0.05 Hz to 100 Khz (-3 db) Input sensitivity 1.1 Volts RMS for rated power and load. Input impedance 30 Kohms (nominal). Output taps Output regulation Overall negative feedback Damping factor More than 500 at rated power and load (20 Hz to 20 kHz). (Effective internal impedance approximately .012 ohms.) Distortion Intermodulation distortion: Less than .1% at rated output (56.56 V p to p) and load (SMPTE method). THD and IMD both decrease with decreasing output. Slew rate Rise time Hum & noise Wide-band, unweighted, more than 90 dB below 50 watts at 8 ohms - power line components (hum) more than 80 dB below 50 watts at 8 ohms. Power supply energy storage Power requirements 105-120/210-240 VAC, 50/60 Hz, 600 watts maximum. 120 watts at idle. 300 watts at rated power. Other Dimensions 19" (48 cm) W x 5 ¼" (13 cm) H (standard rack mount panel size) x 10 ½ (26.7 cm) D (front panel back). Handles extend 1 ½" (3.8 cm) forward of the front panel. Weight 39 lbs. (17.7 kg) Net, 45 lbs. (20.5 kg) Shipping Learn More

Lexicon 512 5 channel (Same as Bryston) 3 channels just recapped, two other channels also recapped recently Learn More

Audio Alchemy DPA-2 black NEW 325 watts/channel Factory sealed new $2500 retail Power Output/Channel (1% Thd+N, 1 Khz): (Stereo 325W/ch @ 4Ohms) / (Mono 625W @ 8Ohms) Frequency Response: 5hz-20khz +/- 0.2dB Nominal Thd+N (1 Watt Into 8Ω): 0.003% Signal-to-Noise Ratio (1 Khz): 94dB Input Impedance: RCA=12K, XLR=19K Output Impedance: 0.03 Ohms @ 1KHz Channel Separation (1 Khz): 70dB @ 1KHz / n/a Gain: Stereo 24dB/30dB – Mono 18dB/24dB Inputs: Unbalanced RCA, Balanced XLR Outputs: Binding post 5-way Available Finishes: Black Dimensions (HxWxD) In: 02.00 x 17.50 x 15.00 including jacks Net Weight: 14.00 lbs The Alchemy DPA-2 Power Amplifier is about dynamic musicality, thanks to design that combines Class A circuit topology composed of discrete FETs and a linear power supply using a toroidal transformer. The pure analog input stage preserves all the detail and nuance of the most delicate passages. The Class D output stage with switching power supply results in impressive output combined with cool-running efficiency. Learn More

Lexicon NT512 available, one silver only check availability before purchasing. 120 watts per channel RMS into 8 Ohms, 200 into 4. THX certified Balanced and RCA Learn More

Bedini BA-803 2 available excellent cosmetics, unused last twenty years. Original boxes. 250 watts Class A Operation 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

Pioneer Series 20 M-22 Learn More

Mark Levinson ML11 power amplifier . With its 2 x 50W in a small enclosure with the heat sinks hidden inside makes it look shy, but it's not. It another great amplifier of MLAS which is perfect as an all-purpose home hifi amplifier. As the others he can drive almost any load. Specifications Power output: 2 x 50W. Weight: 11Kg Maximum power : 260W. Learn More

Bryston 9bst 3 channel version with 2 channels of Lexicon added Learn More

Rotel RMB-1512 in 2023 tested $3000 retail Product highlights: 100 watts per channel into 8 ohms (20-20,000 Hz) at 0.03% THD with all channels driven 200 watts per channel into 4 ohms input linking, input mono switch and signal output link for system configuration flexibility Class D design with thermal and overcurrent protection circuitry frequency response: 10-40,000 Hz (±1dB) signal-to-noise ratio: 109 dB detachable power cord Connections: stereo RCA link input and output for daisy-chaining multiple amplifiers or other components six zone buses, each including: one unbalanced stereo RCA input pair four-pin Euroblock connector input source switch (mono summing in zones 1 and 2 only) left and right 5-way binding post terminals 3.5mm 12-volt trigger in/out with signal sensing switch Learn More

ATI 2505 106lb super high quality amp owner's manual: http://www.ati-amp.com/manuals/ATI_2505_manual.pdf Learn More

Threshold S200 Power Amp Silver Power output: 100 watts per channel into 8Ω (stereo) Frequency response: 7Hz to 100kHz Total harmonic distortion: 0.1% Gain: 26.6 dB Signal to noise ratio: 100dB Semiconductors: 8 x transistors per channel (output) Dimensions: 8.72 x 19 x 9.125 inches Weight: 44lbs Year: 1984 Learn More

Sonic Frontiers Power 1 , just serviced Learn More

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

Krell 5 channel Showcase amplfiier In silver or black capacitors have been upgraded so this sounds like new and Krell modification performed to eliminate high standby idle (allowing for longer lifespan) performed. Will ship in your desired voltage. Krell box/packing. Excellent condition We are authorized Krell dealers Showcase 7 Showcase 6 Showcase 5 FREQUENCY RESPONSE 20 Hz to 20 kHz 20 Hz to 20 kHz 20 Hz to 20 kHz +0 dB, -0.15 dB +0 dB, -0.15 dB +0 dB, -0.15 dB .2 Hz to 95 kHz .2 Hz to 95 kHz .2 Hz to 95 kHz +0 dB, -3 dB +0 dB, -3 dB +0 dB, -3 dB SIGNAL TO NOISE RATIO >110 dB >110 dB >110 dB “A” WEIGHTED GAIN 26.2 dB 26.2 dB 26.2 dB TOTAL HARMONIC 1 kHz < 0.03% 1 kHz< 0.03% 1 kHz < 0.03% DISTORTION (THD) 20 kHz < 0.20% 20 kHz< 0.20% 20 kHz < 0.20% INPUT IMPEDANCE 45 kOhms 45 kOhms 45 kOhms INPUT SENSITIVITY 1.55 Vrms 1.55 Vrms 1.55 Vrms OUTPUT POWER 8 Ohms 125 W 8 Ohms 125 W 8 Ohms 125 W EACH CHANNEL DRIVEN 4 Ohms 250 W 4 Ohms 250 W 4 Ohms 250 W OUTPUT VOLTAGE Peak to Peak 90 V Peak to Peak 90 V Peak to Peak 90 V RMS 32 V RMS 32 V RMS 32 V POWER CONSUMPTION Stand-by 90 W Stand-by 80 W Stand-by 70 W Idle 150 W Idle 130 W Idle 110 W Max. 1600 W Max. 1400 W Max. 1200 W INPUTS 7 single-ended 6 single-ended 5 single-ended via RCA connectors via RCA connectors via RCA connectors 7 balanced 6 balanced 5 balanced via XLR connectors via XLR connectors via XLR connectors OUTPUTS 7 channels via 5-way 6 channels via 5-way 5 channels via 5-way binding posts binding posts binding posts REMOTE CONNECTORS 12 VDC Out 12 VDC Out 12 VDC Out (12 V trigger) (12 V trigger) (12 V trigger) via a 3.5 mm connector via a 3.5 mm connector via a 3.5 mm connector DIMENSIONS INCHES 17.3w x 5.7h x 19.8d 17.3w x 5.7h x 19.8d 17.3w x 5.7h x 19.8d CENTIMETERS 43.9w x 14.5h x 50.3d 43.9w x 14.5h x 50.3d 43.9w x 14.5h x 50.3d WEIGHT SHIPPING 68 lb., 30.8 kg 66 lb., 29.9 kg 64 lb., 29.0 k Learn More

Mark Levinson ML9 in beautiful condition we can convert to a voltage other than 120v if you need Learn More

Bryston 4B e 4be (commercial version , balanced looks like 4bst to me) 2 available 2/22 used in a home only Learn More

Plinius 8200P MKII stereo amplifier (4 available) Learn More

Mcintosh MC7106 six channel beautiful condition factory box ordered 12/1/23 can ship when arrives. Learn More

Meridian G57 amplifier ( 3available) as of 4/23 Learn More

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 Price: $4,500 5 Channels ($3,000 2 Channel, $500 Per additional channel) Learn More

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

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

Krell KAV-2250 silver with box last one, inquire to make sure still available 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

Krell KAV250-A/3, overhauled, new capacitors so they sound the way they should, 6 months parts and labor warranty, KAV-250a Stereo Amplifier Learn More

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

Perreaux PMF5150B Learn More

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

Fourier Triomphe OTL large tubed amplifier sold ? http://www.one-electron.com/Fourier.html Learn More

Red Rose M1 by Mark Levinson Hook up with your favorite surround processor or used to biamp. Low shipping rates to the world. 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

Lexicon LX-7 $6000 retail in silver excellent cosmetics https://hometheaterreview.com/lexicon-rx-7-multi-channel-power-amplifier-reviewed/ Learn More

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

Conrad Johnson Premier 11a We purchased this Premier 11a no tubes buy yourself some new ones and no need to worry about what would be in them Premier Eleven Vacuum Tube Amplifier Essentially a scaled down, stereo version of the Premier Eight, the Premier Eleven delivered 70 watts per channel from a single pair of 6550 output tubes. The Premier Eleven used only the finest component parts in all stages including the power supply. The power supply used only polypropylene and “cjd” polystyrene capacitors as opposed to the traditional deployment of electrolytics. The main storage reservoir used polypropylene capacitors with polystyrene shunts. The Eleven-A added a noise filter on the bias indicator circuit, first employed in the Premier Twelve. Features: 5-way binding post speaker connectors one pair of inputs two plate fuses power switch Replacement Tube Sets: RTPR11 or RTPR11XS V1 & V2: 5751 | V3 & V4: 6FQ7/6CG7 | V5-V8: 6550 Premier Eleven, Eleven-A: V5-V8: You could use kt120 tubes also without any modificaton but the cage will not fit because of the taller tube size. (I always thought they looked much better without the cages on anyway) Specifications: Power Output ­ Ultralinear Operation: 70 watts per channel RMS at 4, 8, or16 ohms both channels driven from 30Hz to 15kHz with no more than 1% THD or IMD. Power Output ­ Triode Operation: 30 watts per channel RMS at 4, 8, or16 ohms both channels driven from 30Hz to 15kHz with no more than 1.5% THD or IMD. Frequency Response: 20Hz to 20 kHz, +0, -.1 dB Input Sensitivity: 0.9 volts to rated power Hum & Noise: 96 dB below rated power Mechanical: Dimensions: 17.5W | 7.25H | 15D inches Weight: 48 lbs. Learn More

Sunfire Cinemagrand Signature 400, new capacitors in the power supply Learn More

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