Audio Proz Service and Sales


Phase linear 200 solid state amplifier

Audio Proz Inv #: 62242

Meter range 0db/-10db, velocity feedback rear panel switches. LED front panel peak responding meters for channels A, B. Cleaned, tested resoldered on 1/17/18. 1 speaker jack tab replaced. Faceplate, cosmetics look great, LED meters fully functional, unit has seen very low use, good condition. Faceplate snapped off from interior plastic braces, glued, repaired, looks good. #9 (original box and packing)

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Phase Linear PL 400

Audio Proz Inv #: 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.  

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Pioneer Elite A-35R

Audio Proz Inv #: 71512

Integrated amplifier with CD / tuner / line / phono / tape 1 / tape 2 inputs, and 2 independent relays for speakers A & B. Remote. Direct mode (bypass tone control). Basic cleaning & all serviced good. Replaced & cleaned protection relays OK, Virtually no use. Condition 9

$ 288  Contact Us  

Pioneer SA-5200

Audio Proz Inv #: 56864

Stereo integrated amp with silver face and wood sides. Ins: Phono/Tuner/AUX 1/AUX 2; Controls: Treble/Bass/Volume; Features: Speaker AB/Tape Monitor/Loudness/Mono/Stereo. Low use unit with upgraded capacitors, fully serviced and calibrated. Condition: 8+ (missing unit may have been sold)

$ 148  Contact Us  

Pioneer SA-6500 II

Audio Proz Inv #: 27021

Stereo Amplifier, Silver faced unit black top, Lights Replaced, Cleaned and Serviced.

SOLD  Contact Us  

Contact us about similar items or replacement parts.


We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock.


Pioneer SA-7800 Stereo Amplifier

Audio Proz Inv #: 42941

Phono, tuner, aux, high quality phono inputs. With balance, bass, treble controls. 2 tape monitor. Front panel also has muting, loudness, subsonic filter and tone switches. 65 watts per channel with 2 independent speaker switches. All controls and switches, set bias and dc offset, resoldered circuit board where required. #9+ condition.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Pioneer SA-9100

Audio Proz Inv #: 51425

Integrated amplifier with three speaker outputs, two tape inputs, two phono inputs, two aux inputs, mic input, and tuner. Two position low/hi filter, three position level switch. All original and very low use time, carefully cleaned and serviced.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Pioneer SA-9100 Integrated Amp

Audio Proz Inv #: 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)

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Pioneer SA9500

Audio Proz Inv #: 25170

Int amp. We do not have one for sale presently, but we can supply service and parts for this unit.

Contact Us  Contact Us  

Pioneer SR-303

Audio Proz Inv #: 17246

Stereo reverb amp, blue "tunnel" display window

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Pyle Pro PT-2400

Audio Proz Inv #: 72248

19" rack mount power amplifier, 80-100 watt, dual XLR / 1/4" combo jack and RCA inputs, dual output level controls, A/B speaker selectors, front panel headphone jack, 110/220 voltage selector, low use unit, 2 speaker switches well designed very rugged with speaker relay protection, face has slight spotting condition #8+

$ 228  Contact Us  


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.

We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock. 

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.


QSC MX 700 Stereo Amplifier

Audio Proz Inv #: 70120

PA Amp, 4-8 ohm, 150-225W per channel, 2-space rack, 1/4" ins, banana outs, Left and right gain control, Rental unit - has not seen much use time, Modified low-noise fan, Condition #7+

$ 200  Contact Us  

QSC MX700

Audio Proz Inv #: 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.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

QSC PLX-1202

Audio Proz Inv #: 33199

Lightweight, switching mode amplifier, 221b

$ 440  Contact Us  

QSC PLX1202

Audio Proz Inv #: 33198

Lightweight switching pwr supply design, road case available, please inquire!

$ 550  Contact Us  

QSC PLX1602

Audio Proz Inv #: 33200

Step-up rail voltage design for high powered use, actually not a modern digital amplifier, lightweight amp, very super reliable design, Condition #8 Low use rental

$ 480  Contact Us  

QSC RMX 1850 HD

Audio Proz Inv #: 70731

Power ratings 350W - 8ohm, 600W - 4ohm, 900W - 2ohm, 1800W bridged 4 ohms. Barrier Strip, XLR and 1/4" input jacks. Speakon and binding post outputs. Has full features for bridging and soft limiting. Virtually no use time. Set proper bias and cleaned controls. Conditions #9.

$ 428  Contact Us  


FYI, Around the database you will often see us describe the condition of units on a scale of 1-10. #10 would mean the product is new from one of our suppliers, such as Behringer, Audio Technica, etc. #9 means the product is in perfect condition but is used, #8 implies there are some minor cosmetic scratches but unit is mechanically perfect, and so on and so forth.


QSC RMX-1850HD

Audio Proz Inv #: 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.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

QSC RMX1850HD

Audio Proz Inv #: 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)

$ 440  Contact Us  

Quantum 25r Twin

Audio Proz Inv #: 48908

Small 30watt combo amp with 6" dual speakers. Features overdrive controls, spring reverb, carpet cabinet. AP installed two new speakers, one heavy duty "thick sound," one vintage alnico "thin cone lead" sound. Two different drivers to create a very "high fi" little amp combo! Professionally cleaned, serviced, tested, with board resoldered for better reliability. Overdrive sound is not great, but very nice acoustic fidelity! Very good #8+ cosmetics.

$ 180  Contact Us  

Radio Shack MPA-101

Audio Proz Inv #: 70272

2 rack space. 100 watt. 5 channel input. (Mic, Phone, XLR, Phono, Aux) NEEDS CAP REPLACEMENT AND CLEAN #8 Condition.

$ 118  Contact Us  

Rane HC-6

Audio Proz Inv #: 55223

Headphone console; 6 channel, balanced 1/4" L/R input, better version (SN - 12235), grounding mod to reduce noise, 9+ condition

$ 138  Contact Us  

Rane HC6

Audio Proz Inv #: 29239

headphone amp, excellent condition, demo unit, with improved grounding and power supply

SOLD  Contact Us  

Contact us about similar items or replacement parts.


APT 1 Amplifier Upgrades and Repairs Technical Information: Read more about it here.


Rane HM42

Audio Proz Inv #: 18584

Mixer headphone amp, 4 channel stereo unleveled mixer to 2 headphone separate level out - modified ground circuit - very quiet, excellent headphone amps.

Contact Us  Contact Us  

Raymer, True tone electronics 804-100

Audio Proz Inv #: 62481

Solid State PA type AMP. Bass, Treble, Master volume controls. Mike input (Hi Z/Low Z), Music (aux) Input. 6.2 OHM, 16 OHM, 50 OHM, TAPS (25V, 40V, 70V). 70 Vault, 60 WATT. As is needs service but easy to service. #8 condition.

$ 18  Contact Us