(1) Stereo - "Receiver". Modified as AM-FM Tuner pre. 1 - phono, 2 - aux ins, 2 - tape loops, and 1 - CD in. Upgrade power supply parts/caps, speaker wire in to allow use of headphone or units, 2 speaker selector. Black Face #9 condition
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Phono preamp with RIAA equalization. (This is a Mono Device) , Uses 8-pin socket connector. (1 only) Excellent #9 condition.
High performance, solid state design, single channel, one rack space unit. Microphone preamp and equalizer can be used independently. All connections are balanced XLR. Excellent #9+ mint condition, includes manual, original box & packing.
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Stereo preamp with headphones out, phono/MM/MC in, aux/tape/CD in, monitor listen switch. Excellent basic audiophile preamp. Professionally cleaned, serviced, tested.
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61G333 late version model, black face rackmount with handles. With AudioPro modifications Rev5. See "Custom Mods" page for more details! Excellent cosmetics.
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4-channel mic preamp, all channels checked for noise, all controls tested, mint condition, like new with box and packing.
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with headphone monitor and level control. New in box with Audacity recording software and user manual. (AP shop tester)
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4-channel mixer with 3-band sweepable equalizer per channel, PA send, and separate monitor send. 3-rack space unit. Excellent condition, cleaned, serviced, tested.
Full Level III AP modifications done, super spec with all caps replaced with Tantalum capacitors. Includes kit of 16 crucial transistors, op amps, FETs, and caps for ease of future servicing. Excellent cosmetic condition.
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stereo w/sonic holography, inputs: 2 aux, tuner, 2 phono (1 for MM & MC), stereo/mono switch, speakers on/off, 2 tape/monitor loops, dubbing 1 to 2 & 2 to 1, loudness, tone on/off, 2khz & 8khz turnover switch, separate bass & treble for each channel, power switch is not operational. switch jumpered to lessen noise in pre amp.
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super low input with super low noise board, tested, may need cap update soon, condition #9
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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.
preamp control unit only, requires special cable/connector, tested ok, condition #9
phone preamp, we've installed MU metal shielding and changed the P.S. grounds to make it super low noise, FET front end, condition #9
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Guitar amp modeler/direct recording preamp/DI box. New.
The Parasound P/FET 900II is a Class A circuit preamp using audiophile grade componets, with a full featured set of ins and outs, slim black faced design, and this particular unit has our improved grounding mod which helps reduce any unwanted hum in the signal path. The unit is in excellent condition and like all our items, it has been cleaned and inspected by Audio Proz to ensure you are receiving the highest quality products. -Inputs: Tape 1/Tape 2/Video/CD/Tuner/Phono -Record Out on Tape 1/2 -Bass/Treble/Balance/Loudness/Volume Controls -Tone Defeat/ Mono Switches -No Headphone -Black -AudioProz grounding Modification -Condition #9
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This Amber Preamp Two is in excellent condition and along with being serviced by AudioPro, has also received upgraded IC chips to 5532 and mute circuits. The back panel connectors have also been resoldered. -TAPE/AUX/TUNER/PHONE/ -Subsonic/Ultrasonic/Tape Filters -Mono/Stereo Switch/ Mute Switch -Balance/Volume Controls -Blackface 2 Unit Rack -Upgraded IC chips to 5532 -Upgraded Mute Circuit -Resoldered Back Panel Connectors
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This Parasound P/SP-1000 has low use and has been all calibrated and all serviced by Audiopro to ensure the unit is in excellent working condition. -AV Processor/Pre-Amp -LD/Video 1/Video 2/Tape/Line Inputs -Dolby Pro Logic -Reverbs: Stadium, Hall, Club -Preamp Direct Option, Bass EQ Switch - 15/20/30ms Delay -Subwoofer/Rear/Center Levels -Overload and Front Balance Knobs -2 Space Rack Mount
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Disital Surround Processor/Preamp. CD/Tuner/Aux 1/Aux 2/Tape/Video 1/Video 2/Video 3/Video 4/ TV/SS inputs. Adjustable millisecond delay/ channel inversion/ adjustable echo. Dolby surround/Hall/Matrix/Creation modes. Adjustable left/right input level. Nice line level remote preamp, excellent surround processor. Blackface unit with digital display. Ruggedized grounds, updated power supply. Unit has remote. Condition #8+
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Tuner/Preamp. CD/Tuner/Aux1/Aux2/Tape in,out/Ext Processor in,out inputs. High blend/ Countour/Bass/Treble/Balance controls. 18 Presets, AM/FM tuner. Black slimline unit with black face and digital display. Super audiophile design, extremely well built, rugged relays. Has manual and remote. Unit is virtually unused, like new condition. Condition #9+
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**We also do work on Adcom**
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High Fidelity control console. Aux1/Aux2/Tuner/PhonoMC/PhonoMM inputs. Independent channel bass/treble controls, volume, balance. Tape 1/2 monitor dub, holographic injection, time delay output level, echo density, correlation threshold, external processor loop, infrasonic filter. Grey brushed aluminum face with dark grey insets. Low hours use. Has original box and packing. Fully serviced. Unit was in storage 20 years. Has original manual and brochure. Please Note: Small amount of Paint is gone on edge of Balance knob about 2" in length- Very Minor. #9+ condition.
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2 RU Rackmount preamp.
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We know you have many options for purchasing audio equipment and parts, and we truly appreciate your business. We strive to offer good products at competitive prices. While we can't always match the prices of one isolated reseller, we make up for it by carefully selecting, testing, and finding unique and special rare parts, and we are here for the long run. We guarantee everything we sell and we hope it helps you to enjoy a great listening experience.
Phono in, 6 line level inputs, front panel in black, nice EQ. #9
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Computer interface. Accurate low noise phono preamp. with digital I/O Compact all aluminum chassis. includes USB cable (NO adapter supply) #10 NEW
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