200 watt bass amp with power cable. 1/4" input with -10db button. Volume/ 3 voicing filters/ treble, hi-mid, lo-mid, bass tone/ boost level with footswitch jack/ master volume/ 2 1/4" speaker outs 4 ohm/ direct out/ send, return on back. AP mod improved filtering capacitors grounds. Black with grey control panel. Minor marks around edges, covers. Low use, fully serviced. Has AC cord. No rack ears (carry strap one side). 8+/10 condition.
Bass Combo Amp. Passive/Active 1/4" inputs. Bass, Treble, Hi Mid, Low Mid controls (level). Cabinet has been dampened to improve Bass + smoothness of bass quality. Output: Master control + Boost, Limiter on/off, Horn on/off. Original woofer and Horn sweep tested, all OK. Aux in 1/8", Direct out XLR & headphone out 1/4". Nice sturdy but lightweight textured cabinet, with NEW G&K 200 watt, AMP MODULE INSTALLED #9 condition
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Bass/keyboard amp, 1x12" speaker. Treble/hi-mid/low-mid/bass EQ. Contour switch, headphone jack, XLR direct out. Custom dampened chassis. Nice condition, very minor marks in a few spots, but nothing major, looks and sounds good. (If requested cab port can be dampened for an even tighter low end) #9 condition
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Audiophile design, high current control amplifier. Upgraded low noise IC, AP Rev 3 mod. Blackface unit with 2 large V/U meters; 1/4" phone jack on face; bayonette speaker terminals. Inputs: Tape/Aux/Tuner/DVD/CD/Phono; Controls: Bass/Treble/Balance/Volume. Used but in like new, #9 condition, with original remote (#8+), box, and packaging. with VU meters,
Integrated amp. Audiophile grade design with remote for volume input switching. Superior all metal chassis quality controls. High current speaker relays. A.P. modified power supply, phono pre, and RFI modifications. sn 9400129 New condition, 1 time demo from display. With VU meters
APT 1 Amplifier Upgrades and Repairs Technical Information: Read more about it here.
Integrated Amp, 80-watt per channel, high-current design. Excellent hi-fi amp w/ remote. Mod RevII, Star ground mod - headphone, chassis and power supply, Upgrade audiophile phono pre. New Unit
High current control 200 Watt, audiophile mostly discreet circuit design, super low noise, high quality amp 115/230 volt operation, audiophile tone control operation, REV 3 MOD, with remote and instruction manual, #10 New unit
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High current control amplifier, 400 Watt, 60 Watt R.M.S. output, upgraded ground path for lower noise, replaced phono opamp with upgraded burrbrown (OPA #2604AP) for improved noise floor, REV3 # 10 NEW in box, with VU meters
Stereo power amp, 3-space w/VU meters. 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***.
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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Quadraphonic amp, phenomenal condition
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Email Us or call (617) 926-8020 for more information about ADA modifications and repairs.
Factory assembled and modified later version unit, with higher quality parts and high speed bypass caps. Features RCA L/R inputs and fused outputs. Fully serviced and calibrated, low use unit, with some minor scratches on top cover. Condition: 8-
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Pro version DH 220 amp with level controls. XLR inputs, ground lift. Later version amp with high quality parts. Quasi Class A design, Mosfet output transistor. Minor scuffs on edges, spray paint top black. Unit has seen low time in consumer studio. condition #8-
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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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Super quality amplifier, dual power supply, dual mono amplifier design, "esoteric" build quality and fidelity, low use hours and purchased from customer who only used as a spare. Serviced and cleaned, and ruggedized solder points on board, small dent on back corner, otherwise excellent cosmetic and mechanical condition. $1150 retail price.
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Silver faced unit high current int amp no tuner, 80 W per channel, Excellent basic integrated amp.
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Mono tube amplifier, Unit has 2 6L6G tubes (older version) in usable condition installed (V3&V4 Position), Input tubes 12A47 (V1&V2), Output transformer is a LUX 5X-15 (Super X Series), Bass bar adjustment pot, Unit works but will need new caps to lower noise hum, Tested, Condition #8
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Local customers, please do not come to the shop without calling ahead first - (617) 926-8020 - for an appointment, so that we can more efficiently help you with your equipment or sound recording needs.
Power Amp. 150 watts->8 ohms. XLR/Phone input, Bananna outputs. Low use hours. Low use hours, Excellent performing, super quality audiophile grade amp.
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stereo integrated amplifier, speakers 1 & 2 on/off, bass, treble, inputs: tuner, phono, CD/aux, and video, tape monitor switch, acoustic expander, stereo/mono, loudness, nice slider volume control. 40watts per channel. Excellent #9 condition.
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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Late 1970s "single ended transistor" design, creates a "tubeaphonic" sound quality. Very good cosmetic condition with minor scuffs on wood and two light bezel caps missing from front. Excellent mechanical/electronic condition, tone controls replaced with higher quality Alps controls, all cleaned, carefully calibrated, all lights working.
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Inputs: Phono w/ ground, Tuner, CD/Aux, Tape 1 Rec and Play, Tape 2 Rec and Play. Outputs: A/B speaker, unswitched A/C, 2 switched A/C outs. Front Panel: 8 band graphic EQ w/ Rec-Engage switch, Loudness switch, power meter, Balance slider control. 80 watts per channel. #8 condition with very minor light stains on face.
We have been selling and repairing professional and consumer audio equipment for over 40 years. (Read some of our customers testimonials here).
High quality Japanese design. Phono Aux. 2 tape tuner inputs. 7 band eq. Upgrade to high quality speaker relay. 100 watt. Black metal. #9 condition.
Combination surround sound processor and 15 watt amplifier with Dolby stereo. Designed to add on to any stereo and create surround sound for spatial settings. Black slim-line all metal construction. Condition: 9
