Audio Proz Service and Sales


A/D/S 200C

Audio Proz Inv #: 60086

Small 2 way. Sweep test on both tweets and 4" mini woofers, ok. All original parts and crossover design. Excellent sound, good bass for really small box, clear voice, detail, and driver integration. Black aluminum cabinet and metal perforated grills. Includes metal pivot mounting brackets. Nice performing product. 9- condition.

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Meyer Sound HD-1

Audio Proz Inv #: 54254

Powered two-way near-field studio monitor. 8" woofer, 1.5" tweeter. Professional refoam. XLR input, pin 3 hot. +4dBU/-10dBV select. Super noise floor. Installed secondary mu metal shield to reduce transformer hum. 16" x 12" x 16.5". 8+ condition, low use, minor cabinet scuffs.

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JBL 88plus

Audio Proz Inv #: 62306

(Pair) Vintage 2-way speakers. Original tweeters, swept tested ok. Original woofers #MDL 123A-1, swept tested ok. Tweeters foam diffraction rings deteriorated (rotten), mismatched tweeters (1 red ring, 1 black ring). Cabinets chipped veneer and slight swelling due to water damage. Grilles have foam missing on one one speaker, and the grill is warped and worn on the other. #8- condition. We can dismantle and ship individual parts (2 LE25 tweeters and 2 123A-1 woofers). Value is for the woofers and tweeters.

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Paradigm PDR-10

Audio Proz Inv #: 48296

Powered subwoofer with good, deep bass. Output level and frequency (50-150Hz) control. 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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Harman Kardon HK4 (pair)

Audio Proz Inv #: 56963

10" 2 way speaker with original 10" textile woofer, replacement Phillips 1" silk dome tweeters. Real walnut veneer, in fair condition, with a stain on top. No grills are included. Speakers have a big sound and nice balance. Tweeter level control now at set level. Condition: 8- ORIGINAL PAPERWORK MISSING

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Read about our Paradigm modifications here.


Paradigm Mini Monitor

Audio Proz Inv #: 46260

Pair, light cherry color. Later version with titanium dome tweeter. Excellent #9 condition. AudioPro engineering sample, not for sale.

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Klipsch KSW-10 powered sub

Audio Proz Inv #: 48613

Like new in box. 12-down firing design, solid black cube appearance. Output level and frequency range controls, phase switch and auto function switch. Stereo RCA inputs and speaker level l/r input. AudioPro modified cabinet damping for improved deep bass, transient noise, and port flutter. 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

Audio Proz Inv #: 57294

(2) Truth B2031A Powered Two-Way Speakers. Call for price, we prefer to modify these before resale, see other listing. NEW.

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Polk Monitor 70 (pair)

Audio Proz Inv #: 57073

5 way tower speaker. Black oak cabinet with dark grey grills. Sweep tested, all drivers OK, in excellent #8+ condition.

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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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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.


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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Bose 501 Vintage

Audio Proz Inv #: 58863

Pair of speakers, floor standing, end table design. Walnut vinyl cabinet with brown and gold grill cloth (3sides). Professional refoamed 10" original Bose 501 woofers, original 3 1/2" tweeters, with OPS man and cut sheet. All drivers sweep tested OK. Full spacious sound blg. 8+/10 condition some minor scuffs on cabinet edge, one back side loose on board backing.

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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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NHT TEN

Audio Proz Inv #: 58028

Powered sub woofer 10" butyl & black mineral cone woofer. Black Lacquer Finish, Arch top, Front port design, black knit grill cover. LFE/RCA Line Ins, also speaker level ins. Low pass & volume controls, phase & boundary switches. Very handsome design look! #9 condition

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Infinity RS6B 3 way speakers

Audio Proz Inv #: 62324

Pair of 8" woofer, 1.5" dome midrange, EMIT tweeter. Professional refoamed woofer, tweeter tests excellently, REV 3 crossover to improve midrange, bass tuned deeper, extra damping. Nice looking oak cabinets. Speaker is slightly forward voice sounding (can be altered if desired). Condition #8+, Grills condition: #8.

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Yorkville YSM 6

Audio Proz Inv #: 57871

Pair. Powered 50w + 20w. 6.5" 2 way monitor, SN 4110262. Modified Revision 4. Adapted passive crossover parts to protect, improve phase response of woofer tweeter/crossover. Excellent bass to 40hz. Cabinet blanket damping. Cone dampeners. (new)

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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.


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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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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Cambridge soundworks M-60

Audio Proz Inv #: 60199

A pair of two-way speakers. Sweep tested, all drivers ok. audio pro modified. Crossover design Rev 4. 2nd order filter, phase corrected. 2nd coil on woof. Added felt carlson woofer. Added felt carlson woofer damping blanket to tune bass lower. Charcoal grill, grey cabinet. 8+ condition.

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KLH Model 26

Audio Proz Inv #: 57977

Pair of vintage speakers, walnut cabinets, original tweets (one dented dust cap), original woofers, treated surrounds, really nice rust brown knit grill. Original x-over. RCA input only! Very pleasant musical sound. Top of cab scuffed. condition #8

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M Audio AV-40 2 way

Audio Proz Inv #: 62272

Pair of desktop powered speakers, gloss black color, 9"H X 5 9/16"W x 7 1/4"d, 5" woofer, 1" dome tweeter, 1/4" phone jack input, line RCA input, on/off bass boost switch, ruggedized aux in connector, excellent condition, condition: 9.

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Vienna Acoustics Bach

Audio Proz Inv #: 71222

2 way Tower Speaker, Black Oak Cabinets, Gloss Black front & Back,  Charcoal/Black Grills,  Original drivers (all sweep tested OK)  6.5" woofer-treated buytl surround, 1" silk dome tweeter, Audio Pro rev. 3 modified x-over design, improved HI frequency responce, more natural voice, improved bass. #9 condition

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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.


Bose SA-300

Audio Proz Inv #: 59850

2 way 8 inch, refoam OK, Cabinets have faux wood look, shabby chic look. Grills ok, good bass, voicey sound. #7 condition. All test OK.

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Acoustic Research AR-48s

Audio Proz Inv #: 58571

Pair of vintage 3 way speakers. Walnut/Vinyl cabinets. Brown knit grills. Original soft dome tweeters (sweep tested OK). New 2 inch dome midranges. High fidelity excellent modifications. 10 inch woofers (sweep tested OK). Audio Pro modified crossover design. Improved midrange performance. Better integration, more natural voice.8+/10 condition (1 input terminal makeshift connection). Excellent full range Hi-Fi speaker.

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