Power Amplifiers

Parasound Halo A51 5 Channel Power Amplifier Silver Designed by John Curl Continuous power output: 250 watts RMS 8 Ω 400 watts RMS 4 Ω THX Ultra 2 Dimensions - 17-1/2" w x 7-5/8" h x 20" d, 7" h Weight: 80 lb. 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

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

Niles SI-1260 Multi Channel Power amplifier 12-channel amplifier power output (20-20,000 Hz at 0.06% THD, all channels driven): 60 watts RMS per channel at 8 ohms 80 watts RMS per channel at 4 ohms adjacent channels are bridgeable to 120 watts RMS into 8 ohms unique BusMatrix™ selector allows four configurable options for each channel: left bus, right bus, left plus right bus (mono), or the channel's dedicated input 6 independent turn-on circuits for multi-room audio applications 3 turn-on modes: automatic signal-sensing, voltage trigger, and manual voltage trigger input accepts 3-30V AC/DC binding posts spaced to accommodate dual banana plugs independent level controls for each channel cascade outputs for "daisy-chaining" additional amplifiers independent protection circuits for each channel removable AC power cord weight: 70 lbs. 17"W x 7-3/8"H x 18-1/2"D Learn More

Niles SI-1230 Multi Channel Power Amplifier- 12 Channels bench tested 5/18 30 watts RMS per channel into 8 Ohms, all channels driven 42 watts RMS per channel into 4 Ohms, all channels driven Adjacent channels are bridgeable to 80 watts RMS into 8 Ohms, all channels driven Three turn-on modes: music sense, voltage trigger and manual Binding posts spaced to accommodate dual banana plugs Item Weight 34.8 pounds Learn More

NHT SA-1 Subwoofer Power Amplifier Audio Inputs: Stereo L/R RCA Number of Channels: 1 Number of Inputs: 2 Color: Black Model: SA-1 MPN: SA-1 Power: 90 W Learn More

New York Audio Laboratories OTL-3C Amplifier Learn More

Nakamichi Stasis PA5 Amplifier Power output: 100 watts per channel into 8Ω (stereo) Frequency response: 7Hz to 150kHz Total harmonic distortion: 0.1% Damping factor: 60 Input sensitivity: 1.4V Signal to noise ratio: 120dB Speaker load impedance: 4Ω to 16Ω Semiconductors: 20 x transistors Dimensions: 435 x 135 x 368mm Weight: 16kg 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

Nakamichi PA-1 Five-Channel Power Amp 5 channel amp at 100W per channel Uses either bare wire or banana connections to speakers RCA inputs for front (L/R), center (mono) and rear (L/R) Remote power on/off control 1/8" input and output Uses standard IEC power cable Dimensions: 17" x 16.5" x 8.5 Weight 48lbs Made In Japan 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

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

NAD 916 Amplifier missing power button, works fine Learn More

Music Reference RM200 MK II Learn More

Moon SimAudio 888 Mono Amplifiers Cost no object design i $120000 retail Approximately one year old , as new in the flight cases Inquire for freight options 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

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

Meridian 857 two years old when we received as new condition in original packaging. 2 available, price for each "Our most powerful reference two channel amplifier has been designed and built to deliver the best possible Hi-Res audio performance from any high-quality passive loudspeaker system. Its low-feedback construction provides ultra-low distortion, ensuring an unparalleled level of clarity and transparency across the audible range. Bridgeable to over 1.5Kw, the Meridian 857 features a totally new design for a Meridian power amplifier, borne out of extensive research, experience and a thorough understanding of psychoacoustic principles." Learn More

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

Mcintosh MC7150 sold ? 4/23 Learn More

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

McIntosh MC30 Vintage Tube Monoblock Pair Beautiful Amplifiers Well Maintained Power output: 30 watts into 8Ω (mono) Frequency response: 20Hz to 30kHz Total harmonic distortion: 0.3% Damping factor: 12 Input sensitivity: 0.5V Signal to noise ratio: 90dB Speaker load impedance: 4Ω to 16Ω Valve complement: 2 x 6L6GC, 2 x 12AX7 1 x 12AU7, 1 x 12BH7, 1 x 5U4GA Dimensions: 13 x 8 x 8 inches Weight: 30.5lbs Finish: chrome and black Learn More

Mcintosh MC275 Original version vintage, 2 available as of 5/22 inquire (we must run these through the service department) Learn More

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

Mcintosh MC2301 Excellent condition original packing inquire for shipping to anywhere (141lbs each box x two boxes) $27000 retail Learn More

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

Mcintosh MC205 5 channel arrived 3/23 with manual excellent not used for five years Learn More

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

McInstosh MC1000 Mono Power Amplifier One amp works properly, one needs repair (we will get to it but then the price goes up) inquire for freight quote Power output: 1000 watts into 8Ω (mono) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.005% Damping factor: 200 Input sensitivity: 2.5V Signal to noise ratio: 115dB Speaker load impedance: 2Ω to 8Ω Dimensions: 264 x 438 x 511mm Weight: 47.6kg Learn More

Mcintosh 240 original one owner inquire before purchasing in 6/22 beautiful condition 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

McInstosh 240 Stereo Power Amplifier The MC240 has on one chassis two 40 watt power amplifiers. In addition to use as a stereo amplifier, the flexibility of the MC240 permits it to be used as a monophonic amplifier that delivers 80 watts, or as two separate 40 watt amplifiers with each channel amplifying completely separate programs, or as two amplifiers for use with an electronic crossover network. Specifications Power output: 40 watts per channel into 8Ω (stereo), 80 watts into 2Ω (mono) Frequency response: 16Hz to 40kHz Total harmonic distortion: 0.5% Input sensitivity: 0.5V Signal to noise ratio: 90dB Speaker load impedance: 4Ω to 16Ω Valve complement: 1 x 12AX7, 2 x 12AU7, 2 x 12BH7, 2 x 12AX7, 4 x 6L6GC Dimensions: 17-1/4 x 10-3/4 x 8 inches Weight: 56lbs Finish: chromium and black Learn More

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

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

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

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

Mark Levinson ML20 shippiing price is double the ship quote 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

Mark Levinson 532h New in 2019 with receipt from authorized dealer for balance of factory warranty Excellent condition in factory box. Many of these for sale are much older out of warranty period. We also have a second one that recently came back from factory service Learn More

Mark Levinson 383 with remote two available as of 6/23 Learn More

Mark Levinson 33h mono pair recapped all caps except large filter capacitors (rarely go bad, long life) and changed the relays. 9/2023 custom crated, inquire for freight options Learn More

Mark Levinson 332 picked up 1/22 from original owner Learn More

Mark Levinson 331 recently serviced by factory authorized center Learn More

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

Marantz 16 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

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

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

Marantz MM7025 used excellent About this product Product Information The Marantz MM7025 is a 2-channel amplifier that is sure to boost the performance of your audio system. With a power output of 140 watts, this Marantz amplifier makes sure that you experience a power-packed performance. The 8 Hz - 100 kHz frequency response range of this 2-channel amplifier provides you with crisp highs and a tight bass response. With a signal-to-noise ratio of 105 dB, this Marantz amplifier reproduces even the minutest of musical detail with reduced background noise. The Marantz MM7025 features RCA and balanced XLR inputs to provide complete system compatibility, without the need of a preamplifier or a processor. Learn More