Preamp - 3 band sweepable parametric EQ, selectable EQ bandwidth, tone bypass, 2 tape monitors, 1 aux input. Low filter, mute and loudness switches, cleaned and calibrated, Modified - Call for details
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nice, basic preamp, EQ, updated with TL075 op amp for tone controls (lower distortion, noise), did 250pf and 18k resistors on all input jacks for RFI protection, did 50pf RFI protection on phono input, revised more correct grounding for phono input, updated power supply capacitors and improved grounding, nice face, not original bass controls, # 8 + condition
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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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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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Tuner Preamplifier, Very good tuner, Digital Display, Excellent condition, PS and ground mods to eliminate hum, modified headphone out to be super quiet
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.
moving coil preamp
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Phono in, 6 line level inputs, front panel in black, nice EQ. #9
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Better quality phono, tone control slider a little sticky, but works, special enhancement EQ control. #7, missing front bezel. 7 inputs.
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Stereo Preamp, On front panel 2 input mixing/monitor, 3 external processor loops, resoldered, modified, cleaned, new power supply
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Preamp - Stereo, modified (PS, headphone, regulator stage, tone control for better signal to noise), unit in excellent condition
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Stereo preamp with box, packing, and manual, 1 1/4 rack space (non standard) power supply mods, 2 simultaneous ins/outs, sound proc loop, phono, tape monitor, bass treble
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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.
Pre-amp is audiophile grade. 19" Rack mount. Black w/ white lettering. 1 Rack unit. Input: Tape 1, Tape 2, Aux, Tuner, Phono 1 + 2, (Phono switch mm or mc) Super quality class A FET design. Serviced, caps replaced on turn circuit and tested. Good condition. 3 scratches top edge of face panel. (can be touched up) #9 condition.
Up to 76dB gain in 6dB increments, selectable high pass filter at 40, 80 and 140Hz, XLR mic level inputs and XLR +4 dB outputs.
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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Receiver converted into PREAMP. Black faceplate. Phono, CD, Video 1, Video 2, Tape 1, and Tape 2 inputs. 10 tuner presets. Built on (non-original) volume knob, with cut hole for LED indicator. #7 condition
Control Amp. (2) Phono in with selectable MC/MM, 3 position cartridge loading switch, and 3 position gain selector. Tuner, CD, Aux 1 and 2 inputs. (2) Tape loops, and (2) set main RCA outputs. (Has some DIN connectors for Tape, CD, Tuner). Complete cleaning and serviced by AP. No remote, Missing (2) function selector gap covers. #8 condition. Missing (2) Function selector gap covers for CD and Tuner
Stereo preamp, Good phono preamp, all controls and switches cleaned
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Basic as new demo high quality phono preamp. 9/10 condition.
Fancy high preamp. Class A module design. Slimline design. Bass/treble controls. MM, MC input. Headphone out. Unit does indeed have little more clarity in over all design (subtle). Some power supply upgrades of crucial resistor and rugged resoldering. #9 condition.
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Pre amplifier, superior design, gunmetal gray, rack mount with rack handles, excellent phono stage, MM + moving coil class A fet design, eq circuit with turnovers (3), (bass 50/120/250 treble 3K/6K/12K), external processor (EPL loop), cosmetics excellent, low use, all control switches cleaned, #9
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Stereo Preamp. Tuner, Phono, CD, Aux 1, Aux 2, and Video inputs. Loudness, and low level switch. Bass and treble EQ controls. Infrasonic filter switch. #8+ condition - Minor scratches and wear on face and top cover.
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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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Stereo preamplifier - Gray with black knobs - Slim unit. Inputs: 2 tape (1+2) Tuner, Aux, Video, CD, Phono (MM) Outputs: 2 Preouts and Headphone (1/4" Jack). When headphones are plugged in, Pre outs are muted -Nice feature! Very nice quality basic preamp with good phone stage. Low use #9 condition
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We offer expert time-saving advice on repairing many types of home and studio equipment, as well as consulting for product and recording issues, at a fair and reasonable cost. For complex matters, we sometimes must charge a small technical fee. If we can help solve your repair problem or technical conundrum, give us a call. (617)926-8020.
Phono/Aux/CD/Tape1/Tape2/Tuner in. 2 outputs, 2 band bass/treble tone control. Capacitance load switch. Does moving cartridge or moving magnet. #8+ condition with some minor scratches on top cover. All controls and switches cleaned. Fully tested. No noise or modulation.
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Preamp, 600 ohm in, 8 ohm out, input/output volume control, small add on line box converter for installation/adapting audio signal - call for details