Audio Proz Service and Sales


CAD Trion 8000 Tube mic

Audio Proz Inv #: 46246

Three position pattern tube microphone. New stock, tested, QC'ed, and burned in by AP. Low noise tube. Includes flight case, shock mount, cable, and power supply. Selected low noise tube, we recommend this mic for vocals, and acoustic instruments. #10 condition Call for best pricing!

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CAD Trion 6000

Audio Proz Inv #: 44554

Multipattern condenser microphone with omni, figure eight, and cardioid pick up patterns. AP Rev3 modified! -10dB pad is vintage dampening to remove stridency and make less sibilant and warmer. High pass filter is dip filter, pulls mid vocal back, source seems farther away. Welded board grounds. Upgraded capacitors. Superspec quiet unit. Pattern switching takes longer due to improved power supply.

$ 280  Contact Us  

ART Pro Channel

Audio Proz Inv #: 43860

Tube microphone preamp. Audio Pro Modified for tube harmonic enhancement circuit, high quality USA Sylvania 12AX7A tube, also has IN/OUT phase, second harmonic enhance Control. Six stage tube design for preamp, compression, and equalization. New stock fully QC'ed. With true tube "Gain Cell" compressor. Super spec unit.

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Sennheiser ME66

Audio Proz Inv #: 42697

shotgun mic, excellent #9 condition.

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Audio Technica AT4071A

Audio Proz Inv #: 38007

Line/Gradient shotgun condenser capacitor microphone. Particularly useful for miking dynamic action in film/TV audio as well as in “spot” miking techniques in the music studio or theater. Like new condition, obvious display box wear. (no foam windscreen)

$ 568  Contact Us  


Re: International Shipping: We ship internationally often and have yet to encounter a problem or complaint. We are very careful to test the equipment before it’s packed and then to double box the machine with added protection when needed for front panels, etc. We are not amateurs or an ebay store; we know these machines very well and know what it takes to get them to you safely. We use USPS priority internationally which seems to be the cheapest. If you prefer another carrier (you should know who delivers to your area reliably) please let us know. Also please be aware of any tariffs that you may be responsible for upon pick up on your end. International shipping may be expensive but we will make sure it is not a headache on top of the cost. PLEASE NOTE THAT SHIPPING INTERNATIONALLY WILL BE A MINIMUM OF $16 EVEN FOR SMALL PARTS.


Klipsch KP-250 IIA

Audio Proz Inv #: 32062

Pro Box, 12" woof, 3-way design 2 horns mid and hi, recessed carry handles, recessed cup hole for "large" pole stand, banana and speaker inputs, composite corner and edge protection, 60 lbs each, AP added 1/4" input connection, selling as pair, will sell one for $500.

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Audio Technica ATW-1031

Audio Proz Inv #: 30167

Rackmount Wireless Diversity System. Belt pack frequency 13C (211 MHz). With 1/4" connection for guitar. Also includes AT-830cx Lavalier mic. Like new, #9 condition. ** Special Sale! **

$ 360  Contact Us  

ART DRX digital multi fx

Audio Proz Inv #: 28091

single space rack unit, excelent shape. stereo in/out. 2 second sampler and multi effect. Excellent shape.

$ 200  Contact Us  

Marshall 9005

Audio Proz Inv #: 27842

4-space rack design Stereo power amp, full TUBE design, Audio Pro modified. Designed by Marshall the Guitar amp co. Dual EL 34, converted to home audio quality hifi amp. Ruggedized, fresh tubes, call for details.

$ 780  Contact Us  

Bellari RP-533

Audio Proz Inv #: 23734

Heavily modified by Vince. 7 new switches, overdrive control, combo mic pre/comp/eq with many added features. Low noise high gain tube modification. 2 Band Bass/Treble. Front panel paid gain/phase switch. Tape saturation control. Smooth fast compression switch. High gain / bright switch. Power supply ground mod. Transformer EQ optical mod. This is the cats meow! Call for details 617-926-8020. Top flight cosmetic condition #8 with just a tiny bit of rack rash. 

Some additional information customers have asked about:   This unit is 90% all tube, the op amps are for RMS, DC control, balanced out not audio! What I do is make the circuits have more head room less noise better tube character and more correct RMS detector tracking. As you may have noticed the output circuit clips badly and is nowhere close to semi-pro level. It's a wrongly done balanced line op amp stage. Also the compressor threshold and ratio controls are too sensitive, as such the unit can go into a strange and not very likable distortion if pushed. There is some good basic design circuits in this, but just not enough. My mods are not about installing fancy parts it's about improved circuit performance

$ 680  Contact Us  

Denon DNT620

Audio Proz Inv #: 19049

CD/Cassette pro rackmount

$ 629  Contact Us  


All Remotes are now 25% off or Free Shipping!!!  (Reel to Reel remotes excluded).


Panasonic SV-3700 DAT Machine

Audio Proz Inv #: 16104

Hrs. Mercury time use indicator almost at halfway mark, but unit has been cleaned calibrated heads aligned clutch tightened - Full AP Shop Service.

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