Audio Proz Service and Sales

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Amplifiers
( 262 Amplifiers sorted by Price High to Low.)
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Crown XLS 2500
# 61479
RCA ins don't work, all else functions OK, low use, #8 condition
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Carver TFM-6CB
# 63813
Power Amplifier. Black faceplate, 65 watts per channel, left and right volume control. Extremely well made audiophile grade Japanese amplifier. (2 sets banana outs) (RCA IN's and LINE OUT)#9 very good condition
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Scott LK-72 Stereomaster
# 43319
Power amplifier. This unit has a bad tube and a bad fuse holder, otherwise a good machine for parts or hobbyist use. Contact us for more information.
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Bryston Stereo Amp 4B
# 43836
This unit can definitely be made functional, but it has some aged resistors that should be replaced. Please contact us for more information.
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QSC RMX-1850HD
# 43847
2 channels, banana speaker connectors, 1/4" and XLR inputs, 15amp breaker. With AC cord, manual, original box. #9 condition with minor light scratches on top paint. Very low use.
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We leave "SOLD" items on our website for machines that we often repair and provide parts for. This is to give you an idea of the products we typically carry, and direct you to alternatives you may not know about - we often have substitutes for out-of-stock parts, and are happy to recommend workarounds and different solutions to common problems.
ADCOM GFA-5300
# 64288
2 channel Power Amp 80 watts @ 8 ohms. RCA in's , Banana Post out's. Hi Quality very well designed unit, low use #9 condition
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Yamaha G50 112II
# 63046
Guitar amplifier, w/distortion control mods, spring reverb, 3 band EQ, 2 ch, foot pedal (reverb, ch, EQ) Amp comes with vinyl cover(Black) Cleaned and serviced. Unit plays loud, Jazz tone, high quality and bright sounding! #9 Very Nice condition
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QSC RMX1850HD
# 61450
2-Channel full-featured stereo power Amplifier; includes level controls, EQ and limiter switches on back panel, Speak-On cables, and banana plugs. Extremely low use amplifier (occasional rental)
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Yamaha DSP-A2070
# 52491
Digital sound field processing amplifier. 5 channel Dolby Pro Logic DSP with jazz, concert hall, theater, church, and rock presets. Aux, VCR 1/2/3, TV, tape, tuner, CD, and phono inputs and composite and s-video video inputs. Excellent #9 condition, low use time, cleaned and serviced with ruggedized power supply soldering.
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Harman Kardon Citation 2
# 52538
Stereophonic high fidelity power amplifier. All tube outputs: (4) KT-88 (2 per channel); (6) 12BY7A (3 per channel); 1 Voltage, 2 drivers. 4, 8 and 16 ohm taps; adjustable a/c balance; adjustable bias with meter. Set up for Buggera tubes. All sockets are clean and tight. Fully calibrated, #8 condition cosmetically, #9 condition internally.
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Marantz 1030
# 52807
Stereo amplifier. Mic, phono, tape, tuner, aux selection. Bass and treble controls. Loudness, tape monitor, mono select. Low use, unit has seen minor water damage on top, but performance has not been affected. Set bias/DC connector. Replaced various low level audio capacitors with higher quality mylar. #8+
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Rotel RB-1080 Power Amplifier
# 73778
Excellent, super high-quality Rotel design . Dual power supply. Center-point grounding design. 150-200w per channel. Unbalanced + Balanced inputs for both R/L channels with balanced/unbalanced selector. Cosmetically excellent, only minor signs of wear/use. Fully functional unit, bench tested All inputs are clean & good, both channels perform correctly to spec.(with original box & packaging) Condition: 8+
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Sansui AU-G77X
# 55363
Integrated amplifier; disc, tuner, tape 1, tape 2, aux inputs, MM, MC, CD disc selector, 5 band equalizer, high/low filter, loudness, headphone out, A, B, A+B speaker select, REC selector. 9 condition.
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Technics SU-G90
# 63287
Stereo integrated amp, 90 watts per channel, Black face plate, Big volume knob. Phono, Tuner, Tape, TV, and DAT inputs. Prefer to sell with Tuner Technics ST-K50 INV#43678 (will discount price). Speaker B switch interrupts speaker A. Fully serviced, Low use time, needs power cable. #9 condition
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Pioneer SA-9100 Integrated Amp
# 70158
2 phono in, Multi-band tone controls, Truly one of the best vintage designs, One of the best condition units we have seen, Capacitors in this unit have seen very low use time (no off-spec caps), Low noise headphone, Minor ground mods, Upgraded tone control/EQ transistor, Low noise, Low use, Cleaned and calibrated, Condition #9 (see our listing TX-9100 AM FM Tuner #70152)
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Need an APT unit serviced or modified? Vince, the owner of Audio Pro, ran the production line at APT for many years, and has decades of experience working with APT products. Read all about our APT Holman service and mods here. Also read about the APT Moving Coil Phono Mod Here
Yamaha CA-600
# 56134
Natural sound stereo amplifier. Silverface with wood cabinet. 1/4" phones jack on face. Slight bend in rear plate at "B" speaker terminals. Fully serviced and calibrated. Has original box. Low hours use. 9/10 condition.
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APT 1 Power Amp
# 73759
APT 1 Power Amp - Excellent quality, low use time - All AP Level 3 mods completed - Relay recently cleaned / buffed - Fully inspected & cleaned - (Relay takes approx. 15 seconds to click on - this is by design) - *Bridging / Mono Mode disabled, for use as stereo amp, (could be set back to original, but unit is better used as a stereo amp) - Condition: 9 (Cosmetically & functionally excellent, only minor signs of wear. Face & top are very clean, with only light wear) - (SN:EO6456)
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Kenwood KA-3500 Integrated Stereo Amplifier
# 56861
Silver brushed aluminum face with 1/4" headphone jack. Inputs: Phono/Tuner/AUX; A/B tape monitor with dubbing switch. This unit has seen low use and has been fully serviced. There is a minor scuff on the top cover but otherwise cosmetics are excellent, and lettering is perfect. Condition: 9-
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APT 1 Amp
# 73754
Apt Power Amplifier. SN: 7916152. Later version build. Level III update. low use time, From shop owners personal collection. Very little signs of wear or aging. Some light scratches on face and top panel but no broken or damaged parts. Fully functional unit with Audio Pro updates. #9 condition
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Phase Linear PL 400
# 70942
Vintage power amp. Large VU meters (All lamps functional) Silver face plate. 200 watts/channel. Unit is virtually mint and low use. Serviced resoldered and ruggedized ground + main board. Excellent condition! Low Use! 9+ condition.
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Yamaha M-40
# 57602
Power Amp 3 speaker switching. Lubed/cleaned speaker inputs. Cleaned and dusted internal units. #9 Condition (Low use).
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QSC MX700
# 57614
Stereo Amplifier 20k balanced. 2 rack space. Banana outputs 6nd stripe 1/4" input TRS/TS. #7 Condition. Chassis obvious roadwear. Internal very low use.
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Luxman L-3
# 71696
Integrated Amp, Silver face, Champagne body and Knobs, has 1 phono, 1 tuner, 1 aux, 2 tape loops, low noise/better thermal stable differential transistors for amplifier board, RFI suppressor on phono in and other jacks. All cleaned and serviced, minor P. S. Ground change for improved lower noise, #9 Condition
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Yamaha M-35
# 63511
2/4 Channel power amp. 35 watts per channel. Left and Right speaker output level controls. Fully serviced, low use, refurbished relays. #8+ condition
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Fender LTB
# 59155
4 channel PA amp. 1/4" and XLR inputs, no phantom power, spring reverb, max 80W. Discrete amp circuit, very serviceable. 9/10 condition. Ruggedized board soldering and cleaned.
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Email us at sales@audioproz.com or call (617) 926-8020 for more information about ADA modifications and repairs.
Adcom GFA-545
# 73236
High current power amp. RCA L/R Input, L/R Speaker outputs. Dual Power Supply. Basic but high quality design. Very reliable unit with super high quality parts & Construction. Excellent star grounding on filter caps. Better built unit, excellent quality capacitors and board layout. SN: AD11317-726. Cosmetically & Functionally excellent. Some minor scratches/ small marks on unit but mostly very clean. Fully tested & Cleaned. Works perfectly. #9- condition
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NAD Stereo Amplifier 3130
# 61711
A,B,A+B, speaker settings, Bass, Treble controls, CD, Phono, Tuner, Video/Tape 2 inputs. Better upgrade to many capacitors, and ruggedized board solder. Unit has original transistors, good quality power supply capacitors, nice condition, clean faceplate. #9 condition
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Luxman L480
# 60446
Integrated amp. Unit has 2 tape source inputs. 2 dubbing inputs, 60 watts per channel, has moving magnet and moving coil cartridge inputs. Nice rosewood case. Tuner and auxiliary inputs. Pre amp in/out amp loop. Nice silver slimeline face. All switches and controls cleaned, updated speaker relay. #9+ condition.
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Cambridge audio A300
# 60459
No phono in. Aux CD, Tuner, Aux. Nice Basic design. Black. Clean & calibrate. With box, #9 condition.
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Yamaha A-520
# 70916
Integrated amplifier (1985 vintage) Black face panel. 75 watts per channel. Audiophile grade amp and parts. Has external RCA outs! Speakers A/B Bass Treble + Balance controls. Inputs: Tape 1, 2, Aux, Tuner, CD, Phono w/ switchable mm/mc. Variable loudness. Resoldered grounds + cleaned controls and switches. Good condition all clean. Super quality amp! #9 condition.
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