Audio Proz Service and Sales


Audio Research AR-6100 passive sub

Audio Proz Inv #: 49366

8" ported design with black oak cabinet 20"L x 13"W x 7"H. Separate guillotine connectors for ins and outs. Uses real nice dual VC bass driver with tiny top cabinets. Any good satellite speakers can be used. Like new condition, upgraded.

$ 220  Contact Us  

Cambridge Soundworks subwoofer pair

Audio Proz Inv #: 49373

Low Profile, black speakers, very compact (Passive) design, about 12"x21"x4.5". Decent, modest efficiency design for frequencies below 200Hz. Excellent condition.

$ 160  Contact Us  

Dayton US620w

Audio Proz Inv #: 49408

6.5" in wall speakers with tweeter. Three individual speakers available.

$ 75  Contact Us  

Burhoe Acoustics 2way speakers

Audio Proz Inv #: 49516

Pair of small, two way speakers, 9"w x 13"h x 7.5"d. Original inverted dome tweets, new 4" mini woofers with treated cones, all sweep tested good. Very nice voice and midrange, somewhat bright tweeter. These would make an excellent system with a subwoofer! Very good #8 condition walnut vinyl cabinets, original foam grills in #7+ condition with a few cut marks. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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Dynaco A25 pair

Audio Proz Inv #: 49526

Vintage 2way medium sized pair of speakers. Real walnut veneer cabinets and beige burlap grills (with round marking from woofer surrounds). Very pleasant sounding speakers, slightly present voice but very clean tweeters and natural bass voice, good classic vintage sound. Speakers have 5-position tweeter level switch. Truly excellent, almost like new condition with original boxes and packing. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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Spare or substitute parts may be available. Email Us and include a picture and/or the number on the unit. We make excellent spare part selections.


Snell Type K 2way speakers

Audio Proz Inv #: 49605

Pair, medium size, rock solid, oak veneer cabinets, brown knit grills. Original VIFA tweeters and new upgraded 8" treated paper cones with butyl surrounds, all sweep tested good. Nice, neutral bass and midrange, slightly bright in extreme highs, very good for midfield listening. Very good #8 cosmetic condition with minor stains and repaired dings on nice dark oak wood cabs. 11"/18"/8". Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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RA Labs horizontal 2way speakers

Audio Proz Inv #: 49663

with AudioPro Rev5 crossover modification for better clarity and reliability. Double 5" woofers with rubber surrounds, all sweep tested good. Cabinets measure 20.5" long by 6.5" wide by 7.5" deep. Very high quality product!

$ 260  Contact Us  

RA Labs 2way horizontal speaker

Audio Proz Inv #: 49665

Hifi horizontal 2-way speaker, new old stock. 20.5"Lx6.5"Wx7.5"D. DiAppolito design concept double woofer and tweeter, double 5" woofers with rubber surrounds. Very high quality center channel woofer that should last another twenty years. Pair available.

$ 90  Contact Us  

KLH Model 15

Audio Proz Inv #: 49787

Dual 4" driver design speaker, drivers sweep tested good. All original parts, can be modified for better modern fidelity. Very good condition with a few minor scratches on cabinet.

$ 60  Contact Us  

ADS L1290 pair (AP modified)

Audio Proz Inv #: 50039

3-way tower speakers, 41" tall by 10" wide by 13" deep. Teak wood cabinets with black metal grills. .75" dome tweeters, 2" dome midranges, and 8" woofers, all sweep tested good. AudioPro Rev4 crossover modification for improved fidelity and power handling. Excellent full range speaker with a normal, musical voice. Excellent condition. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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Behringer Truth B2031a (AP modified)

Audio Proz Inv #: 50188

Pair of powered monitor speakers, highly recommended product. New in box. AP modified crossover design for better fidelity and phase response and to protect tweeter from DC and transient damage. Added cabinet & cone dampeners. Model 2031A are amplified speakers. I suggested 2031 passive design, and to use any good 40-100 Watt amplifier. Check out the Behringer website for a picture. A modified set is $448. We modify the 2031 to be a near field monitor where midrange tone is "warmer" or slightly receded image by a 3db through about at octave between 800 - 2000 H3. A far field monitor version is slightly brighter or stronger midrange and designed to listen at 4 to 8 feet distance. Basically flat response is perceived at that range. Near field version is for 2 to 5 feet away listening, and indeed most BSEE acousticians agree that a near field should be dipped in midrange. In both cases, the modification consists of improved multi section crossover (it presently has a very simple 4-part crossover) as well. We install a dampening blanket between the internal chambers, dampen tune one of the port slots and finally apply soft felt clone dampeners to improve midrange level and tonal match to crossover. The cabinet is now tuned to reproduce 40 Hz powerful and clean. The speakers are very heavy design with cast frame woofer, using high density MDF cabinet, very well done. No grill cloth is included by design. Shipping can be $38 or so to get them to you.

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We have a wide variety of speaker parts available, and we do modifications for improved fidelity, better power handling, phase correction, and many others. Email Us or call (617) 926-8020 for details.


Behringer Truth B2031a pair (AP modified)

Audio Proz Inv #: 50189

Pair of powered monitor speakers, highly recommended product. New in box. Custom modification to crossover to protect tweeter from DC and transient damage and better fidelity and phase response. Cabinet dampening and cone dampeners installed. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections. Model 2031A are amplified speakers. I suggested 2031 passive design, and to use any good 40-100 Watt amplifier. Check out the Behringer website for a picture. A modified set is $448. We modify the 2031 to be a near field monitor where midrange tone is "warmer" or slightly receded image by a 3db through about at octave between 800 - 2000 H3. A far field monitor version is slightly brighter or stronger midrange and designed to listen at 4 to 8 feet distance. Basically flat response is perceived at that range. Near field version is for 2 to 5 feet away listening, and indeed most BSEE acousticians agree that a near field should be dipped in midrange. In both cases, the modification consists of improved multi section crossover (it presently has a very simple 4-part crossover) as well. We install a dampening blanket between the internal chambers, dampen tune one of the port slots and finally apply soft felt clone dampeners to improve midrange level and tonal match to crossover. The cabinet is now tuned to reproduce 40 Hz powerful and clean. The speakers are very heavy design with cast frame woofer, using high density MDF cabinet, very well done. No grill cloth is included by design. Shipping can be $38 or so to get them to you.

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Klipsch KP-2000-C

Audio Proz Inv #: 50496

Pair, 12" 2-way with horn, Black carpet covered cabinet, Top carry handle, Bottom 1.5" pole hole, Great design from Klipsch, Audio Pro modified crossover and cab damping, Very good fidelity PA speaker, Mostly rental use once or twice per year, very low/occasional use, Condition #8

$ 428  Contact Us  

The Large Advent 2way speaker

Audio Proz Inv #: 50590

Single speaker. Original red "egg drop" tweeter, refoamed original Advent woofer, original crossover design, all sweep tested good. Walnut vinyl cabinet and brown knit grill, excellent cosmetics. Nice, vintage quality with excellent bass! Mint condition, back panel description and warranty cards intact.

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Sapphire SCMKII

Audio Proz Inv #: 50610

Center channel speaker, dual 5 1/2" mini woofs (silver cone & buy TL surrounds) (1) 1" soft dome tweeter (blue dome) *all drivers tested sweep ok *black cabinet with black grill 18 1/4" W 12 1/2"D 6 1/2" T * Good sounding condition #8+. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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Yamaha NS-333 -AP modified

Audio Proz Inv #: 50621

2-way, 5.25" speakers, pair. Black lacquer cabinets, titanium dome 1" phoase lens design tweeters. Speakers have AP-upgraded crossovers, MONITOR QUALITY sonics, second order phase corrected design for improved imaging and power handling, dampening added to cabinets to tune woofer, very nice audiophile quality, slightly bright sound. Very good #8+ condition with very nice grills and some minor cabinet edge chips and finger wear.

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Yamaha YST-SW216 -AP modified

Audio Proz Inv #: 50645

Amplified subwoofer for various speaker systems. With AP modified cabinet dampening for nicer tuned, cleaner bass response. RCA or speaker input with level control. Very good #8+ condition. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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Read about our Paradigm modifications here.


M-Audio Studiophile BX5a pair -AP modified

Audio Proz Inv #: 50648

4.5" woofers and 1" tweeters, XLR and TRS inputs. AP-modified with better voltage grade power supply caps. Very good #8+ condition. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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Yamaha NS-10 pair

Audio Proz Inv #: 50679

Not the professional monitors, but a strange consumer audiophile product. Speaker driver is a 8ohm JA3502 full range 12" oval speaker with a "flat panel" sound effect, warm, thick, 1980's vintage midrange character. Sweep tested perfect, excellent cosmetic condition, mounted in beautiful walnut veneer cabs. These speakers come from Vince's personal collection of unusual speaker designs.

$ 120  Contact Us  

Aiwa SX-M55 3-way mini speaker pair

Audio Proz Inv #: 50944

2way + internal subwoofer. Designed with two sets of wire connections, blue RCA for full range and black bare wire for sub. Faux oak cabinets, silver face with blue/grey grills. Very good condition, tested good.

$ 50  Contact Us  

AR 12 Vintage 3-way Speakers pair

Audio Proz Inv #: 51091

*All new drivers, 10" woofer Dayton paper cone/ Butyl surrounds, 1 1/2" dome mids, Dayton aluminum dome, 1" dome tweeters soft dome (Goldwood) quality driver, *Audio Pro modified x-over design, 2nd order filters on mid and tweeter, better phase correction and power handling, #9 condition. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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Snell Type K pair

Audio Proz Inv #: 51266

2-way speaker with .75" wide dispersion dome tweeters and 8" Vifa (professionally refoamed and aligned) woofers. Excellent midrange with a neutral bass quality. Black painted oak cabinets in very good #8+ condition with minor scratches, excellent #9 condition grills. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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Yamaha NX-GX70

Audio Proz Inv #: 51503

Small box speaker, 8"x9"x12.5". Darg gray with gray grill. 3-way design with 5" textile woofer, 1.5" mid/tweet, and .5" super tweeter. Good bass, clear voice on axis, "mid-fi" boombox speaker. Very good condition with some minor scuffs.

$ 20  Contact Us  


We have been selling and repairing professional and consumer audio equipment for over 40 years. (Read some of our customers testimonials here)

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.


Aiwa SX-WNAJ50

Audio Proz Inv #: 51504

3 way compact stereo speaker with built in 6" sub woofer, 4" full range driver, designed for bi-amp wiring - bare wire ends for mid-hi, RCA ends for sub woofer, silver cabinet, grey grills, forward voice, sub woofer needs EQ signal, grills and cabinets ok, scuffs on top, condition #8, 1 pair

$ 48  Contact Us  

Electro-Voice EV Sentry 100A pair

Audio Proz Inv #: 51736

8" 2-way studio monitors. Original 1.5" dome tweeters, professionally refoamed (as original) woofers, all drivers sweep tested good. Black cabinets in good #7 condition with some scuffs and scrapes, gray fabric grills with some stains. Vintage sound character, possible to alter/improve per customer's taste.

$ 180  Contact Us