Audio Proz Service and Sales


Rolls MP13 Mini Mic Preamp

Audio Proz Inv #: 18815

Mini Mic Preamp - Mic preamp with 30v phantom power

$ 90  Contact Us  

Rolls PB24

Audio Proz Inv #: 19289

Mic Preamp mono, phantom 12/48v, super compact, can run on battery or with power supply

$ 78  Contact Us  

Rolls MP13 Mini Mic Preamp

Audio Proz Inv #: 19512

Mini Mic Preamp - Mic preamp with 30v phantom power

$ 90  Contact Us  

Tascam MX-80 Mic Mixer

Audio Proz Inv #: 22246

8 channel mic preamp, add on 48v power, extremely high gain low noise full bandwidth mic pre, 2 space rack unit, excellent conditon

$ 360  Contact Us  

Bellari 220 Dual Mic Pre

Audio Proz Inv #: 22546

Dual Mic preamp - Full mods (RFI, Front End Pad, Impedance/Transformer-Higher output level/lower noise, PS, Hi Filter, High Freq slight harmonic distortion, plate saturation, chassis flownoise) - super quiet

SOLD  Contact Us  

Contact us about similar items or replacement parts.



Bellari MP110

Audio Proz Inv #: 30131

Single channel tube mic preamp, 1/2 rack space, XLR and 1/4" in/out

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Bellari RP520

Audio Proz Inv #: 30179

Tube Mic Pre, Gold Face, VU meters

$ 430  Contact Us  

ART Pro MPA (Engineering Unit)

Audio Proz Inv #: 31548

Stereo Mic Tube Preamp, Meters Excellent level control, variable low frequency roll off, tube character is very subtle but audible **Super Modified - Engineering Unit** ask for details

Not For Sale  Contact Us  

Contact us about similar items or replacement parts.

Avalon VT-737SP

Audio Proz Inv #: 32899

New, Single channel esoteric tube processor, compressor,mic preamp, semi-parametric EQ.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

ART Dual MP Model 254

Audio Proz Inv #: 33159

Two channel tube mic preamp - basic tube mic preamp, 48v phantom, in/out level led meter, 1 rackspace

$ 240  Contact Us  

ART DPS

Audio Proz Inv #: 34294

Stereo tube preamp with adjustable tube voicing, 48v phantom, digital outs, Supermodified (PS, tube, shielding/ground, noise spec, RF noise) - call for details HERE IS A LETTER TO ONE OF OUR CUSTOMERS CONCERNING DIGITAL CLOCK MOD "FADS" AND OUR ART DPS MOD: Dear customer, First of all, the clocks, stability of the clocks, or any clocks, are not the real problem in digital. I have personally never seen a problem with them, and most BSEE agree with me. Modifications to any DAC are suspicious. I am aware of this current modification “fad” but I don’t spin it. The people who claim such improvements are suspect. More problems exist concerning super sonic digital clock noise spray into the audio circuitry, and correct grounding issues, which tend to be the real culprit. In fact, this is why dither noise is added in the DAC circuits to linearize the converter so it will not see incoherent noise bursts on the digital ladder. (bit converter) Whether it is a $20 circuit or $2,000 circuit, better grounding and shielding of the DAC, clock, etc will usually solve the problem of super sonic noise ingress into the audio circuitry. This labor typically costs around $66. In the future, these supposed high cost, esoteric mods will prove to have minimal value. If you want more information, feel free to call and I will explain more about my ART modification. Also feel free to read my website, www.audioproz.com which will also explain about the ART mod and some important theory of audible effects of clever tube enhancement.

SOLD  Contact Us  

Contact us about similar items or replacement parts.


We leave "SOLD" items on our website for machines that we often repair and provide parts for. This is to give you an idea of the products we typically carry, and direct you to alternatives you may not know about - we often have substitutes for out-of-stock parts, and are happy to recommend workarounds and different solutions to common problems.


ART Pro MPA (Modified)

Audio Proz Inv #: 34295

Stereo Mic Tube Preamp, Super Fi modified for audiophile tube preamp -(higher gain/lower noise, tube, eq, pad, RF PS, mic front preamp mods). All in one Microphone preamp, Harmonic Enhancement controller, tube compressor design. The ART PRO MPA when fully modified is $990. It is truly still unique for some of the clever adjustment capabilities. The most obvious is the ability to adjust the level and phase of a very euphonic second harmonic distortion which is then gain rided. The preamp can sound thick, punchy, dense, edgy, silky, warm, strident, etc. It’s not just equalization… it is an alteration and enhancement of the original audio signal. ....read more about it here.

Not For Sale  Contact Us  

Contact us about similar items or replacement parts.

Behringer Ultragain Pro MIC2200

Audio Proz Inv #: 34857

2-Channel Tube Microphone Preamplifier/Line Driver/DI Box. "Soft Mute" 48v phantom, XLR & 1/4" ins/outs. Integrated parametric EQ. 12 segment LED meter. New in box. Great preamp at incredible price.

$ 98  Contact Us  

Behringer Shark DSP110

Audio Proz Inv #: 34960

Digital 24-Bit Multifunction Signal Processor. Mic/Line preamp, Feedback destroyer, delay line for speaker time-alignment, compressor, 48 V phantom power, 24-bit A/D and D/A converters. Very compact (5 units mount in just over 1 rack space). Great "Swiss army knife" live application tool. New unit, in box.

$ 90  Contact Us  

Behringer Shark DSP110

Audio Proz Inv #: 34961

Digital 24-Bit Multifunction Signal Processor. Mic/Line preamp, Feedback destroyer, delay line for speaker time-alignment, compressor, 48 V phantom power, 24-bit A/D and D/A converters. Very compact (5 units mount in just over 1 rack space). Great "Swiss army knife" live application tool. New unit, in box.

$ 90  Contact Us  

Behringer Shark DSP110

Audio Proz Inv #: 34963

Digital 24-Bit Multifunction Signal Processor. Mic/Line preamp, Feedback destroyer, delay line for speaker time-alignment, compressor, 48 V phantom power, 24-bit A/D and D/A converters. Very compact (5 units mount in just over 1 rack space). Great "swiss army knife" live application tool. New unit, in box.

$ 90  Contact Us  

Behringer Ultragain Pro MIC2200

Audio Proz Inv #: 35965

2-Channel Tube Microphone Preamplifier/Line Driver/DI Box. "Soft Mute" 48v phantom, XLR & 1/4" ins/outs. Integrated parametric EQ. 12 segment LED meter. New in box. Great preamp at incredible price.

$ 98  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.


Behringer Ultragain Pro-8 Digital ADA8000

Audio Proz Inv #: 37541

8-Channel A/D & D/A Converter with 8 Mic Preamplifiers and ADAT Interface. 44.1 or 48 kHz with 24-bit resolution. Phantom power. Optical I/O. Single space rack mount.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Behringer MIC200 Tube Ultra Gain

Audio Proz Inv #: 39355

Tube mic pre with 16 voicings.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

ART MPA gold mic pre

Audio Proz Inv #: 39767

sw: MO70103917. Sale

$ 300  Contact Us  

Furman MM-8A

Audio Proz Inv #: 40829

Excellent quality low noise 4 mic pre mix to 2 channel (4x2 mixer). 48V ground lift, some minor updates. 5534 op amp design, 1 effects send.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

ART Pro MPA (Engineering Sample)

Audio Proz Inv #: 40839

Stereo Mic Tube Preamp, Super Fi modified for audiophile tube preamp -(higher gain/lower noise, tube, eq, pad, RF PS, mic front preamp mods). All in one Microphone preamp, Harmonic Enhancement controller, tube compressor design. The ART PRO MPA when fully modified is $990. It is truly still unique for some of the clever adjustment capabilities. The most obvious is the ability to adjust the level and phase of a very euphonic second harmonic distortion which is then gain rided. The preamp can sound thick, punchy, dense, edgy, silky, warm, strident, etc. It’s not just equalization… it is an alteration and enhancement of the original audio signal....read more about it here.

Not For Sale  Contact Us  

Contact us about similar items or replacement parts.

Presonus Blue Tube Mic Pre

Audio Proz Inv #: 40931

2 channel tube preamp. XLR, 1/4 inch in/out. New in Box.

$ 200  Contact Us  


Need your guitar or bass amp tuned up? We are now doing repairs, upgrades, and modifications to all types of guitar amps. Orange, Mesa Boogie, Fender, Marshall, Hughes and Kettner, Peavey, Ampeg, Gibson, Silvertone, etc. Read more about it here


ART Tube Pac

Audio Proz Inv #: 41325

XLR 1/4 in ins and out w/ phantom power - 1/2 rack/desktop design - bench tested (modified unit for shop use Bench 1) 

Not For Sale  Contact Us  

Contact us about similar items or replacement parts.

ART TPS II Tube Mic Preamp - Rev 6 Modified

Audio Proz Inv #: 41406

New in box, modified tube harmonic enhancement, level match control, EQ mod, Metering Mod, Compress Mod, Transformer shield, Tube Gain mod. To learn more about the modifications on this unit, see our article here: http://www.audioproz.com/AP.php?Article=94

SOLD  Contact Us  

Contact us about similar items or replacement parts.