Audio Proz Service and Sales


ADS 710 3-way speakers

Audio Proz Inv #: 26664

Compact dual 6" woof, top quality euro parts, 6" butyl surround woofs, 2.5" silk dome mid, 3/4" silk dome tweets, AP mod x-over design, major upgrade mod for phase correction and superior tonal balance/imaging. Spare or substitute parts may be available. Show picture and number on unit. We make excellent spare part selections.

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ADS L-300C

Audio Proz Inv #: 63823

(pair) Small 2 way speakers . All original drivers 1" soft "dome tweeters", sweeps ok. 5" woofer butyl surrounds. All black aluminium + composite CABs and black metal mesh grills. #8 condition ALL TESTED EXCELLENT 

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ADS L-710

Audio Proz Inv #: 62999

(Pair) 3-way, double woofer, dome midrange + Tweeter. Walnut Cabinets in excellent condition (21.75"x12.25"x10.5"), knit brown grills - few pulls upper right hand corner). AP modded version 4 to correct midrange balance and impedance (woofer inductor 1.0mH to improve bass). Excellent sounding full range Hi Fi speaker!  Woofers professionally refoamed. #9 condition.

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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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ADS L200C Small two way speakers (pair)

Audio Proz Inv #: 55893

Black aluminum cabinets with black "perf" metal grills (4.5"w x 7"t x 5"d). With pivot mounting bracket. Excellent small speaker. Very good bass. Pleasant sounding. 9/10 condition. All drivers sweep tested OK. Slight variation in tweet dome texture.

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FYI, Around the database you will often see us describe the condition of units on a scale of 1-10. #10 would mean the product is new from one of our suppliers, such as Behringer, Audio Technica, etc. #9 means the product is in perfect condition but is used, #8 implies there are some minor cosmetic scratches but unit is mechanically perfect, and so on and so forth.


ADS L300 C

Audio Proz Inv #: 63825

(Pair) Small 2 way speakers. 1" soft dome tweeters, 5 1/4" Woofer Butyl surround. Amazing small box bass. Treated butyl surrounds and aligned voice coil for best performance. Excellent design to use with basic older version sub woofer, passive or active. #8 condition. Black Aluminum and Black metal grills

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ADS L400

Audio Proz Inv #: 70278

Pair, Small 2-way speakers, Mismatch look cabs, 1" soft domes, 6.5" woofers - butyl surrounds, All drivers sweep OK, Dark cab separated top seams but no air leak, No grills, Condition #8

$ 108  Contact Us  

ADS L570

Audio Proz Inv #: 60555

Speaker pair. This is an audio pro modified speaker with philips woofers. Excellent sound. Same character as original ADS. High quality construction, voiced for natural sounding speaker. Cabinets and grills have minor cosmetic damage, still presentable. #8- condition

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ADS L570

Audio Proz Inv #: 61207

Vintage 2-way speaker, (1 only) 1" soft dome tweeter, 8" woofer/butyl surround (treated silicone), all drivers sweep test OK, light brown / slight orange, nice teak wood cabinet (not a semi gloss finish), black metal grill, very good sounding speaker, no mods, , #9+

$ 126  Contact Us  

ADS L810

Audio Proz Inv #: 64124

Pair of Vintage 3 way, 4 driver system.  All original woofers mids and tweeters and x-over. All Sweep tested OK. Cleaned and treated butyl woofer surrounds to keep supple. Blond walnut veneer and black metal grills, Beautiful looking and sounding. Big full range sound, clear voice & excellent bass. #9+ condition 

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ADS L990

Audio Proz Inv #: 63809

3 way Vintage tower speakers, 10" Woofer, 1.5" dome mid, & 3/4" dome tweeter. All original drivers sweep tested all OK, Cleaned  and treated Butyl surrounds on the woofers. Excellent performance of all parts and really good sounding full range design. Nice Long grain oak cabinets & black perforated metal grills, very handsome! #9- speakers, #8- grills (with original packing boxes)

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OUT OF STATE CUSTOMERS:
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We only ship to VERIFIED PayPal Addresses
For customers who do not have a PayPal account we also take Credit Card over the phone.

Please be aware that there is a minimum $4-$6 to ship any part.


ADS L9E

Audio Proz Inv #: 63975

(PAIR) 3 Way bookshelf speaker (21 3/4" x 11 1/2" x 10 1/2"). Black ash vinyl cabinets. Original 1" dome tweeters, sweep tested. Rebuilt as original mid domes by Rich So - Sweep tested. Original 8" woofers. Original crossover design. Excellent sound, natural voice, good deep bass! #9- condition BLack ash cab and black metal grill

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ADS L9e crossover upgrade

Audio Proz Inv #: 46998

We are very experienced in the repair and modification of this crossover. Our upgrade improves fidelity, phase response and correctness, power handling, and allows the speaker to output stronger bass. Originally ADS had a very pronounced midrange that was also prone to causing driver failures. Our modification solves both problems! Phase response is especially improved in the voice/midrange to produce a more complete and seamless sound character. We use matched spec mylar capacitors and other audiophile grade parts. $220 includes all parts, labor, and return shipping to modify one pair of crossover boards. Most hobbyists have found it is quite easy to (carefully!) remove the board and connectors out of the speaker.

$ 220  Contact Us  

Advance Model A/W

Audio Proz Inv #: 63811

(Pair) Nice Walnut Cabinets (24 5/8"x 14 5/8" x 10 3/4"). 2 Way with 10" Passive radiator, 1" Peerless Soft Dome Tweeter, 8" Woofer. Woofers/ Passive Radiator had Professional Refoam. AP added a 1mH inductor on Woofer to improve voicing + tighten the bass. Slightly bright, designed for large room grills/Cloth in excellent condition (No tear holes or warpage). 1 Brass logo is missing. #8+ condition Sounds very good, tight bass, real nice.

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Advent Legacy II Cabinets & Grills only

Audio Proz Inv #: 53283

#8 condition. Need TLC. Water circle on top of one cabinet. Minor pilling on grill, cabinets solid, clean.

$ 48  Contact Us  

Advent Leonardos

Audio Proz Inv #: 15075

Custom built 3-way with dual 8" woofers custom 4 speaker midrange panel, phase corrected crossover circuit

$ 1000  Contact Us  

Advent Marbl II

Audio Proz Inv #: 72180

(PAIR) 2 way indoor/outdoor speakers, wall mountable brackets (lock position) *swept checked tweeters, woofers, 1" horn loaded tweeter, 5" woofer w/ butyl surrounds, 2 position - switchable indoor/outdoor, 9 3/4" HT x 6.5" W x 8" D, thick sound for small box - optimized for outdoor listening, black composite cabinets, black metal mesh grills, condition #8+ 

$ 88  Contact Us  


We specialize in speaker repair and have OEM parts for ADS, AR, Advent, KLH, Scott, and many other brands. Call us at (617) 926-8020 for speaker parts or to inquire about our repairs and modifications.


Advent Mini Advent

Audio Proz Inv #: 59112

Indoor/outdoor, actually nice HiFi sound! New rugged foams on woofer (with #2201276p woofer). Cabinet dampened (but limited bass). Small 11" high, 6" deep. Price is cost to correctly rebuild foam. 8/10 condition

$ 88  Contact Us  

Advent Prodigy II

Audio Proz Inv #: 60735

Modified. New high efficiency woofer. Paper cone design like original. Phase correcting crossover installed. Slightly present midrange. More cabinet dampening. Very good cabinets. Oakwood top. Minor edge scuffs, grill pulls. Condition #8.

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Advent Prodigy II

Audio Proz Inv #: 72721

Vintage two way medium sizes speakers, Real Walnut "caps" top and bottom, Original 1" soft dome tweeters, sweep tested OK, (2) Dayton 8" butyl surround hi quality woofers installed. Audio Pro modified X-over design rev.4,  Nice full range sound, voiced for bigger room, brown knit grills. (1) has few small holes & minor stain. #8 condition

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Advent Vintage Large Speaker

Audio Proz Inv #: 41525

1 large Advant, original as new recone, metal frame

$ 96  Contact Us  

Advent Vintage Large Speakers (2)

Audio Proz Inv #: 28032

10" woofers with masonite frames in #9 condition refoamed, sweep test OK, drivers only

$ 188  Contact Us  

Advent Wireless

Audio Proz Inv #: 41077

900 MHZ 98 powered (up to $300)(MDL AW 820) Black. In box/ used. 2 way speaker design (4 OHM) 4" Woofer + 1" Poly carbonate tweeter. 10 watt built in amplifier per speaker. Left/ mono/ right, volume + RF fine. Tuning frequency on speakers front panel (on each) + LED indicators. vol, LED indicators. Includes all AC adapters for speakers/ transmitter and 1/8" stereo and L/R RCA adapters #9 condition. SALE.

$ 200  Contact Us  


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


Aiwa SX-LM99

Audio Proz Inv #: 71307

Cute, small, nice gloss, rosewood finish, 1 foot x 6 inch. Audio Pro mods to lessen voice presence. #8 condition

$ 44  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