Audio Proz Service and Sales


Audio Research D-52

Audio Proz Inv #: 71402

Basic power amplifier  50 watts/channel   Silver 19" rack mountable with Black handles  4 Front mounted fuse holders for the +/- voltage rails for L and R channels. Unit currently is not functional and needs repair - needs custom proprietary AR pre-amp module  # 4405828969) Unit in fantastic condition cosmetically, but needs module to be fully functional  Due to this factored rated 8+ condition

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NAD 3240PE

Audio Proz Inv #: 71535

Nice basic design. Stereo amp. CD / Phono / Tuner / Tape / Video Inputs. Excellent phono. Soft clipping setting - power envelope. 4 or 8 ohm switchable. Better made Taiwanese machine. Complete service, resoldered and ruggedized board soldering, some cap changes. Condition 9

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Scott 299-B

Audio Proz Inv #: 71509

Vintage int. tube amp. Beautiful gold finish. Face panel in #10 condition. All lettering intact, not cooked! Impeccable mint condition. Slightly weaker left channel by 1 dB. Original telefunken tubes - no cooking time. Reformed caps, meets all original specs. Low noise floor. All original unit. Excellent specs. Condition 9+

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APT Power Amplifier 1

Audio Proz Inv #: 71498

High quality basic power amplifier done correctly. Features Audio Pro Level III Update. Upgraded - all Power Supply caps, all audio caps, new relay, updated DC servo circuit and relay timer circuit . Very low use unit. Has later version Rev 4 board. #9 condition

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Apt Power Amplifier 1

Audio Proz Inv #: 70843

Serial number: E03924. Level III Mod - Upgraded: all P.S. caps, all audio caps, relay, relay drive circuit, amplifier EQ circuit, DC servo circuit. Condition 9

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Re: International Shipping: We ship internationally often and have yet to encounter a problem or complaint. We are very careful to test the equipment before it’s packed and then to double box the machine with added protection when needed for front panels, etc. We are not amateurs or an ebay store; we know these machines very well and know what it takes to get them to you safely. We use USPS priority internationally which seems to be the cheapest. If you prefer another carrier (you should know who delivers to your area reliably) please let us know. Also please be aware of any tariffs that you may be responsible for upon pick up on your end. International shipping may be expensive but we will make sure it is not a headache on top of the cost. PLEASE NOTE THAT SHIPPING INTERNATIONALLY WILL BE A MINIMUM OF $16 EVEN FOR SMALL PARTS.


NAD 3140 Integrated Amp

Audio Proz Inv #: 71899

80 watt stereo. Full feature design. Listen tape selector. Gun green face (metal). Variable low bass EQ. LED. Excellent phono input with cartridge loading circuit. Soft clip circuit. Double up on power switch. Unit has minor thump on turnoff (no relays) - by design. Low use machine. Ruggedized board soldering. Some NAD grades done. Taiwan version machine. Better caps, but power supply was redone with about 20 upgraded parts. Condition 8+

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Acurus DIA 100 MkII

Audio Proz Inv #: 71892

High quality "audiophile" integrated amp. Passive pre-amp. High quality parts. (2) tape loops. (4) line (stereo) inputs. AC cord in box. Banana post speaker connectors. All cleaned and serviced. **NO PHONO** Black face. Grey silver knobs. Condition 9

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B&K Reference 2200 Stereo Power Amp

Audio Proz Inv #: 71589

220 watts per channel (2) XLR IN, (2) RCA IN, 2 channel speaker out banana post. Low use, basic service bench tested, cleaned switches. Condition #9

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Marantz 1070

Audio Proz Inv #: 72106

Integrated Amplifier, 35 Watts / Channel, Vintage Silver Face w/ Black Inset, Inputs: Mic, Phono, Tuner, Aux, Tape 1 & 2, 3 Band Tone Control (Bass / Mid / Treble), Hi / Low Filter Loudness, 2 Speaker Switching w/ Ambience Function, All Capacitors Checked Throughout Unit, Unit Uses Better Low Noise Transistors in Phono Preamp by Factory Design, Working to All Spec, RFI Suppressor Caps in Phono Pre Stage), Very Nice Vintage Marantz, Condition #9 

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Carver A-500X

Audio Proz Inv #: 72392

High power amplifier 19" rack mount handles, 250/watts/channel 8 ohm, High quality Capacitors, double sided boards, input level control (L+R), Stereo/mono switch, vintage style watt meters (switchable range) Truly an excellent design, double sided circuit boards, dual power supply, runs cool, modified power switch with double contacts, cleaned all controls and switches, calibration bias set, minor scratches on cover, Condition #9

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GLI Pro GA-75 Stereo Power Amp

Audio Proz Inv #: 35443

3 space rack design with large VU  meters  (vinc unit)   Awesome very well built high current 100 watt amp with meters and level controls, 2 speaker switches. *** Modified power supply, Improved upgrade audiophile grounding done***. 

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Customers outside of the US, please note that international shipping can be costly (US Post $16 minimum - up to 8oz or 226g). We are glad to combine orders to reduce shipping costs. Take a look at our shipping policies for more information and estimates of prices and shipping time.


McIntosh MA 6100 Preamp Amplifier

Audio Proz Inv #: 72297

Integrated Preamp/ Amplifier. Bass & Treble controls have independent right/left balance for both. Input selector includes Aux, Tuner 1 & 2, Phono 1 & 2, Tape HD. Mode Selector includes L to L&R, R to L&R, Stereo, Mono (L+R) L+R to L, L+R to R, Panloc. Tape Copy/ monitor functions. Only a few capacitors replaced, all others check out perfect (unit uses many Japanese caps). Fixed and tightened connectors. Added silver solder to edge connectors. Face glass is near perfect.Very clean unit with only minor signs of use. Only light wear, no broken parts. Unit is fully functional & Works excellently. No Wooden case. Minor oxidation on rear connectors. #8+ condition.

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ADCOM GFA 6000 Multi-Channel Power Amplifier

Audio Proz Inv #: 72819

Comes with owners manual. Speaker outputs: Center, Left Rear, Right Rear, Left, Right. All outputs have individual level controls. Independent RCA inputs for each channel. High quality blue boards with high quality capacitors throughout unit. Excellent, rugged board soldering. Very low use unit, incredibly clean cosmetically & Fully functional. All controls and connectors are clean and undamaged. All channels work excellently. All lights work and bulbs are in good shape. #9 condition.

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