Audio Proz Service and Sales


Infinity Quantum 5

Audio Proz Inv #: 57530

3 way speakers. Vintage walnut cabinets & black knit grill. Original emit tweets tested OK. Mismatch 2 "midrange domes" (1 original, 1 similar plate design). Original dual VC woofers refoam professionally matched. #8+ $488 for the pair.

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Klipsch KG 4

Audio Proz Inv #: 58290

Pair. 2-Way double 8" woofer speakers with 12' rear passive resonator. Horn Tweeters Sweep Tested, 4-8" Mineral Cone Buytl and Surround Woofers Sweep Tested.Audio Pro Modified X-Over Design. Nice real walnut veneer cabinet with brown fabric grills excellent condition. #8+

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Boston Acoustic A25

Audio Proz Inv #: 58213

2 way 5 1/4 inch bookshelf speakers. Gloss black. 1 inch dome tweeter. Handsome small speakers. New. 10/10 condition.

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Yamaha NS-10T

Audio Proz Inv #: 61833

2 way small bookshelf (16" x 9.75" x 8.5") Walnut Vinyl veneer $108. (2) 6.5" Woofers $28 each. (2) 1.5" cone tweeters $14 each. All drivers sweep tested good Can be broken for Parts. Cabinet Solid, with a few dings. Grilles ok with a few snags and one small tear - presentable. Drivers in #9 condition, Cabs/grills fair/poor, #7+ condition overall. 

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KEF C20

Audio Proz Inv #: 58701

Pair of small 2-way speakers. 8"woofers, 1" soft dome tweeter all test sweep OK. SP3053 walnut cabinet, black grill, nice compact design. Slightly forward presence. Modified bass driver with dampeners and returned cabinet for better deeper bass. 8/10 condition, tweeters are aged and discolored. One tweeter dome has a dry crack but is still OK.

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Local customers, please do not come to the shop without calling ahead first - (617) 926-8020 - for an appointment, so that we can more efficiently help you with your equipment or sound recording needs.

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.


Polk Audio SDA 2

Audio Proz Inv #: 58898

Pair of vintage 3-way speakers.  (1) 1/4" clear poly dome tweeter (better version). (2) 6" woofers surround, vented dust cap treated cone. All drivers sweep tested OK. Audio Pro REV 3 mod. Basic crossover update.  Also treated all driver butyl surrounds. Big speaker, big full sound, clear voice. 9/10 condition, vinyl walnut cabinets, black knit grills 7+/10 condition have frayed obviously on side edges. Overall better version parts in these SDA's.

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JBL 44080 Studio Monitor

Audio Proz Inv #: 58941

Pair of 8" two-way vintage loud speakers. Audio Pro modified!. (2) New 1" dome tweeters. (2) Original 8" woofers professionally refoamed and sweep tested OK. Custom x-over mod rev 2nd low frequency filter, ferrite slug tuning and internal felt carson blanket, 2nd order Hi Frequency filter and ferrite tuned coil. 9-/10 condition, Improved deep bass/ more normal voice and better driver integration and power handling. Real walnut cabinets. Original blue knit grills with JBL logo strip (has subtle stains).

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JBL J2060

Audio Proz Inv #: 59111

2-way, 6 inch. Modified with improved crossover. (Phase, tonal balance corrected). For midrange imaging dampen cabinet with blanket and felt cone dampeners. Oak cabinet, charcoal grill. 9/10 condition, nice with low use.

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Definitive Technology - Pro 800 Stereo Satellite Speakers

Audio Proz Inv #: 59500

Withstands. 5 Foot high angle brackets or wall mount. Excellent low use condition. Better design performance. Added midrange. Felt acoustic. Filter for better midrange. Condition: #9  (MIA)

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Peavey Blue Marvel

Audio Proz Inv #: 60313

12" Guitar speaker. 8 ohms. Linen cone, celestion style driver. Nice condition, clean, tested. 8.

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JBL 4311 WX-B pair

Audio Proz Inv #: 59509

Vintage 3 way speakers. Totally intact and original. Tweeters are very weak (typical of this part). Speakers can be modified or repaired depending upon request. Very minor stains on grill. Surround butyl has leaked onto face board. Excellent cabinet condition, but minor stain on top of one cabinet, minor scratches. Condition #8+

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We are a very different kind of shop. To help ensure a smoother experience please read our letter about our current shop policies.

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.


Infinty SM-122 3 way speakers

Audio Proz Inv #: 70451

Large floor standing design 35" tall, Original Polycell 1" tweeters & 4" midranges all sweep tested OK, and Original 12" woofers (professional re-foamed) Audio Pro modified crossover / phase corrected design, 2nd stage mid filter & pad, (added felt cone dampeners) 2nd stage woofer coil. Added fiberglass and dacron cabinet damping for improved bass. Really good Hi Fi Voicing !!! Nice walnut look cabinets all sides and front, #8 condition (grills available but in very poor condition)

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KLH Model 6

Audio Proz Inv #: 62554

(pair) Vintage 2 way speaker. Dark walnut vinyl cabinets (23 1/2" x 12.75" x 11.75"). Classic 10" KLH  woofer with textile surrounds, 1 3/4" KLH tweeter. All drivers swept tested. AP modded crossover REV 3 improves midrange, highs. Note: (1) tweeter has slightly more midrange presence. Grills in excellent condition. Speakers in #9 condition  

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B&W DM 100

Audio Proz Inv #: 59787

Engineering, Sample to, Convert to, Infinity woofer, NAD tweeter, small monitor quality, excellent small box bass, midrange, 4 ohm, black, no grill. #8 minor scuffs on cabinet.

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Criterion 200 A

Audio Proz Inv #: 59834

Vintage 3 way speaker. Audio Pro modified, X-over design, improved bass, full vintage sound, clear voice (slight forward), real walnut veneer, back panel controls high frequency low frequency defeated, rev 3 crossover update, beige burlap grills have typical circuit "stains" from driver cut outs. #8+ condition

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Mirage FRX 1B-1

Audio Proz Inv #: 61262

Pair, small 2 way speakers, 5" woofer, 1" titanium dome tweeter, sweep test, all drivers OK, added to bass filter and added felt cone dampener, improved fidelity, tune deeper bass, more natural voice, good bass for small box, crossover update, 12.5"h × 9"d × 7"w, black oak cabinet, black oak grills, #9+

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Ultimate Support Systems

Audio Proz Inv #: 61141

2 available, aluminium tripod, 6' tall speaker stands, dual size pole, 1⅜" & 1½", fully functional, very worn cosmetic condition, minor cracked composite fittings OK, #7-

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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.


Boston Acoustic VR-1

Audio Proz Inv #: 63048

Tower Speakers (36.5x11x9"), 1 Pair - Black Ash Vinyl, 1" Dome Tweeter, (2) 5.75" Woofers PolyCone Butyl Surround, Mods can be done for improvements, Cabinets in great shape, Grills intact - no pull/tears, Condition #9

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Bowers & Wilkins DM 602 S3

Audio Proz Inv #: 61411

(pair) 2 way speakers, 1" Aluminum Dome tweeters, 6.5" weave kevlar woofer, Black ash & black knit grills. All drivers sweep tested #8 condition

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B+W (Bowers and Wilkins) ASW600

Audio Proz Inv #: 61518

10" Powered Sub Woofer (14.5"W x 14.25"H x 18"D), 150 watts/ 43lbs, high level input/outputs, low pass filter adjustable 40hz-180hz, phase switch 0/180 degrees, auto on/off sensing, adjustable volume, very good condition. *A few snags/white spots on grill. #9 condition

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Bozak B302A

Audio Proz Inv #: 61654

Urban Cabinets (24"w x 24"h x 20"d) Walnut finish, 3-way.  12" woofer, 6" midrange, 2 3"tweeters.  All drivers sweep tested.

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Kef 103.2

Audio Proz Inv #: 62360

Vintage 2 way speakers, Teak cabinets black knit grills. Original 1"soft dome tweeters-sweep tested OK. Original  8-inch Bextrene woofers re-set and aligned for best axis & height also internal felt cone dampeners. Audiopro modified x-over design rev. IV, and improved cabinet damping. More natural voice & fuller bass. Nice balanced and pleasant listening speaker. #8+ condition

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Sapphire SBL

Audio Proz Inv #: 62363

(1 pair) 2 way bookshelf speakers. 1" Dome tweeter (Sapphire blue), 6" Aluminum Cone w/ Butyl surrounds. Black wood grain vinyl 14" H x 7" W x 10.75" D. Note: 1 speaker woofer cone has small dents. Sweep tested all drivers. Very nice voicing, good natural bass, treble is slightly forward. Good condition - used with small minor scuffs on cabinets. #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.


Electro-Voice Interface D Series IV

Audio Proz Inv #: 62475

3way (with double woofers) Large vintage speakers. All original drivers, sweep tested OK. Radial Horn tweeter. Special 6.5" midrange & (2) 12" woofers (professionally refoamed) 4 position High Frequency switch,  Real walnut veneer cabinets, black integrated pedestal base, brown knit grills. BIG SOUND !!!  Deep bass,  clear voice. Designed for larger rooms. Some scuffs on cabinets and black base worn in spots. Few minor pulls in grill but mostly nice. #8+ condition  

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Mirage FRX-7

Audio Proz Inv #: 62594

(pair) Tower Speakers, Slim design (31"H x 7"W x 12"D). Beech wood Vinyl finish, 2 way with Bi amp capability. 1" tweeter, (2) 5" woofers with butyl surround, twin vents (1 rear and 1 front). Pleasant full range sound good driver integration. Excellent condition, Faux light cherry look cabinet. #9 condition 

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