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Definitive Technology

Definitive Technology Black Bookshelf Speaker - SM55B

Abt Model: SM55BK | UPC Code: 093207089244
 Discontinued Product This item is no longer available from our website.
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Definitive Technology - SM55B - Bookshelf Speakers
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Sold As Each/ One 6.5 Inch BDSS Cast Basket Driver/ One 1 Inch Pure Aluminum Dome Tweeter/ 32Hz To 30kHz Frequency Response/ 90dB Sensitivity/ Black Finish
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Product Details

Definitive Technology Studio Monitor 55 Black Bookshelf Speaker, Model SM55BK (Sold As Each)

Key Features:

  • Second generation patented 6-1/2" BDSS mid/bass driver with Linear Response Waveguide technology for flat, accurate response with micro-detail retrieval and three-dimensional imaging
  • Cast aluminum driver baskets
  • Second generation pure aluminum dome tweeter for smooth, extended highs
  • Top-mounted racetrack bass radiator for outstanding bass response
  • Non-resonant braced enclosure ensures pure, uncolored performance
  • High-gloss anti-diffraction baffle and shaped enclosures reduce diffraction for open and spacious imaging
  • Crossover network features oversize inductors and premium Mylar capacitors for audiophile-grade sound quality
  • Integrated Zobel network makes the SM55 easy for amplifiers to drive
  • Bi-amp/bi-wire all-metal 5-way binding posts

Features:

  • Redesigned From the Ground Up for Superior Performance, Utility and Beauty
    The new Definitive StudioMonitor series is the culmination of over 20 years of research and development to create monitor-quality shelf speaker with the perfect balance of high style, utility and most of all performance.
  • The Most Advanced Technologies for the Most Advanced Performance
    If you love great sound you must experience Definitive’s StudioMonitor 55. Its combination of racetrack bass radiator technology, and our latest generation patented Balanced Double Surround System (BDSS) bass/midrange drivers, all housed in a rock-solid attractive enclosure, delivers unsurpassed sonic performance.
    Each SM 55 features a cast-basket 6-1/2" (17cm) second generation BDSS midrange driver and a 1" (25mm) pure aluminum dome tweeter. The driver features Definitive’s patented Balanced Double Surround System (BDSS) technology that supports the speaker cone at both the inner and outer edges allowing longer, more linear excursion for greater clarity and finely textured inner detail. A new patent pending Linear Response Waveguide™ smoothes off-axis frequency response and disperses sound over a wider area for crystal clear intelligibility for every listener in the room. The tweeter is a pure aluminum dome, which has been heat-treated to relax the crystal structure and then coated with a ceramic to produce extended highs that reveal nuance and shimmer without a trace of edginess.
    The BDSS long-throw bass/midrange driver is pressure coupled to a top mounted racetrack bass radiator to extend and amplify bass frequencies. The total bass radiating are of a SM55 is substantially greater than that of a single 10-inch woofer but with far greater control, definition and speed than a single sluggish large woofer. The StudioMonitor’s bass performance is nothing short of astonishing in its depth, detail and musicality.
  • Phase-Coherent Crossover Networks
    The crossover network is the real heart of a loudspeaker as it is responsible for perfectly blending together the sound of the various drivers into a musically seamless whole. The sophisticated design used in the SM55 features premium audiophile-grade components such as oversized inductors, Mylar capacitors for linear phase and frequency response. An integrated Zobel network flattens the impedance of the system so that even budget amplifiers will be able to drive the SM55 loudly without distortion (although a premium amplifier will bring out all the performance this remarkable speaker has to offer). This preserves the phase coherence, transient response and dynamic integrity of the signal for absolutely lifelike music and home theater reproduction in your home.
  • Slim Elegant Styling - Rock Solid Performance
    All the driver and crossover technology in the world would be wasted if housed in a resonance-prone box. We devoted as much Design and Engineering attention to the styling and construction of the StudioMonitor 55’s enclosure as any other part of its design. The specially contoured high gloss baffle around the drivers and the tapered enclosure sides enhance sound quality by minimizing diffraction distortion. The decorative high gloss grille and cabinet accents add elegance to the matte black tower the way satin piping adds dash to a tuxedo. But the enclosure’s most important job is to be totally inert and resonance free so as not to color the sound. And that’s just we did in engineering the SM enclosures. Internal MDF cross braces further stiffen the system. Tap on the side panel of a StudioMonitor 55 enclosure to hear the solid “thud” of a solid, well-damped cabinet instead of the hollow ring of a poorly constructed speaker.

Specifications:

  • Driver ComplementOne 6-1/2" BDSS cast basket driver pressure coupled to one 6"x10" low bass radiator, one 1" pure aluminum dome tweeter
  • Frequency Response 32Hz - 30kHz
  • Nominal Impedance 8 Ohms
  • Sensitivity 90dB
  • Recommended Associated Amplifier Power 20-225 Watts
  • Inputs Bi-amp/bi-wire 5 way binding post terminals
  • Enclosure Braced MDF
  • Finish Wood grain matte black enclosure with high gloss black baffle and trim

Approximate Dimensions:

  • Height:13"
  • Width: 7–7/8"
  • Depth: 12–3/8"

Approximate Weight:

  • Shipping: 32 lbs

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): 5 Years

 

Note:

** Sold as pair **

More reasons to buy the Definitive Technology SM55B from Abt Electronics
  • Abt.com is an authorized dealer (Learn More).
  • The Definitive Technology SM55B is Brand New.
  • The Definitive Technology SM55B Ships in a Factory Sealed Box.
  • Abt ships this product for free!
 
Frequency Response32Hz - 30kHz
Enclosure MaterialWood
Enclosure TypePassive Radiator
Impedance8 Ohms
LightweightNo
Magnetic shieldingNo
Power20W - 225W
Sensitivity90dB spl (2.83 V/m)
Speaker Design2-Way
Speaker TypeBookshelf
Tweeter Size (inches)1
Woofer Size (inches)6.5
Height (inches)13
Width (inches)7.88
Depth (inches)12.38
  

REVIEW SNAPSHOT®

by PowerReviews
Definitive Technology Black Bookshelf Speaker
 
5.0

(based on 10 reviews)

Ratings Distribution

  • 5 Stars

     

    (10)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Reviewed by 10 customers

Displaying reviews 1-10

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5.0

Amazing sound.

By 

from Roseville, CA, United States

Comments about Definitive Technology Black Bookshelf Speaker:

These speakers are incredible. Everyone I play them for are amazed by how clear they are and how well they sound at high volume. I listen to more music since I got there speakers. The highs are clear and bass radiator up top hits. Amazing speakers and they look beautiful, cant say enough about them. Check them out.

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5.0

Tiny Giant

By 

from İstanbul, Türkiye

Comments about Definitive Technology Black Bookshelf Speaker:

"Woawwwwwwww" is the first reaction when I listened to a pair of these tiny giants. I have a lot of high end equipments, somes are very expensive ones and famous brands. I just want to hear these babies for a small room listening upgrade. Then... oh my god! In my life I have never heared a piano sound this much realistic. Then the vocal comes out and I can imagine the vocalist just in the middle of the stage. These tiny giants also give a hard deep bass compare with it's rivals. But the most amazing thing of these speakers are the natural pure sound of any instruments and the vocals too. "Stage Like Stereo Imagining" is incredible also... By the way you can listen to these speakers in a narrow or wide angle or near or far position. If you support these babes with a little active subwoofer of any def tech model you can never give up these.

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5.0

Simply incredible

By 

from NJ, United States

Comments about Definitive Technology Black Bookshelf Speaker:

I have had Def Tech speakers for probably 14 or more years, and they never cease to amaze me. You can buy zillion dollar speakers for sure, but to me Definitive is as good as it gets. I bought a pair of SM55's to replace my Mythos ones in the surround position because my son was pulling on the wires of the VERY heavy Mythos ones, and we were afraid he'd really hurt himself. Anyway the SM55's do not disappoint as Definitives never do. These little guys are extremely detailed, and accurate. I am hearing things I never heard before, and definitely not with this clarity. That is the most striking thing about these speakers, the clarity is absolutely astounding to me. Anything that is thrown at these beautiful speakers is absolutely clear and projected with power. I am completely satisfied by these speakers. I just might get 3 SM65's to replace my Def Tech left/right mains and center channel. Yes they are that good! Thanks Definitive and keep up the good work.

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(1 of 1 customers found this review helpful)

 
5.0

Amazing Sound, with Natural bass

By 

from Albany, NY, United States

Comments about Definitive Technology Black Bookshelf Speaker:

I bought a pair around 2 years back solely relying on the rave reviews that I read everywhere around. I was apprehensive if it would suit my taste but was I wrong to ever doubt these. 2 years on and these proved to the best speakers I could have ever bought for the price. These play both music and movies with equal ease and I just love the clarity that they bring in any application. Further would like to add that these folks do know how to pamper their customers. During one of the family unions, one of the kids poked the dome of the tweeter of the left speaker. Though it did not make any difference to the sound, yet the damaged tweeter always bothered me in the back of my mind. I called up these guys to see if they would sell the replacement tweeter but hearing my case they gladly shipped one tweeter ...for FREE !

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(1 of 1 customers found this review helpful)

 
5.0

Best in class, and punches above its weight!

By 

from Undisclosed

Comments about Definitive Technology Black Bookshelf Speaker:

I bought these after a very intense listening comparison between multiple brands. Definitive definitely won me over. I bought the SM-55s and paired them with a Yamaha Vx677. I think the sound is amazing! I was struggling with bi-amping and losing my rear surround and 2nd zone, but after going through with it, it was a worth sacrifice. I will just need to upgrade my amp later, but not until I have more definitive's to fill out the spaces.

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5.0

Great speakers for the price

By 

from Columbus, GA, United States

Comments about Definitive Technology Black Bookshelf Speaker:

I just purchased the SM55's to compliment my Denon 3313 AVR to use almost exclusively to listen to music. I hooked them up and decided to bi-amp them. Wow!! The sound is crystal clear and natural. Great speaker for the size and price. I love Def Tech speakers and highly recommend the SM55's.

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5.0

Excellent Speakers

By 

from Atlanta, GA, United States

Comments about Definitive Technology Black Bookshelf Speaker:

I'm using the SM55's with the CS-8040 and PM 1000 for surrounds and all I can say is wow. They really make my Pioneer Elite SC-85 shine. This upgraded the Pro Cinema 600 package I had and the difference is amazing. Now all I need is 4 in ceiling for an atmos setup and I will be good to go.

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(1 of 2 customers found this review helpful)

 
5.0

Very nice sound

By 

from Chicago, IL, United States

Comments about Definitive Technology Black Bookshelf Speaker:

I purchased these speakers 3 weeks ago. I put them through their paces and am very happy. I listen to all types of music, all types. I also use them with my tv, not surround sound, but nice stereo. Very smooth mids and roll off to the lower freq. High freq sound is pleasing and clear. Not bright, however dial up your amps treble and they can get there if that's your thing. Build quality is solid, fit and finish is nice. Overall a real win. If you have limited space, can not fit floor speakers, "cube" type systems just do not deliver the quality, these are for you. I have listened to most of my music library, and each night I choose music now more often than tv.

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(4 of 5 customers found this review helpful)

 
5.0

Amazing Sound After Break In!

By 

from Northern California

Comments about Definitive Technology Black Bookshelf Speaker:

I love the look of these speakers with the piano black baffle along with a super solid build quality. The ability to bi-amp makes this an extremely dynamic speaker. The imaging is great and the customer service over at Definitive Technology is awesome! I enjoyed these speakers from the moment I set them up. After a few days of playing them the truly amazing sound came, with a nice deep bass, a full mid range, and highs that aren't fatiguing, but capture what is supposed to be heard. I would also like to thank Adam over at Definitive Technology customer service for making sure my front speakers were at the ideal height for the best listening experience. Thanks!

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5.0

Just Buy and Try

By 

from Antioch,Il

About Me Midrange Shopper

Verified Buyer

Comments about Definitive Technology Black Bookshelf Speaker:

Best ive ever purchased.Looked at many types and sizes.Towers to Sattilites.This was an awesome upgrade from Pro Monitor 800 system that I also bought from Abt.You truly will not be disappointed,If you are Abt will take it back without hasle.I could say about soundstage,filling the room,presence,all the terms used to describe todays speakers,but the proof is in listening to them.My receiver sony4400es allows bi-amp and when I did the speakers came alive.Surprise,the speaker is so effiecent,and rated 20/225 I didn't think it was necessary.Runnin 120 watts per channel,no clip.Also let me say I upgraded l/r/c with sm55 and 8040c,i had ordered 4 sm55 but put 2 of these in my home office for computer music with an older sonystrda695 I bought a very long time ago from Abt.The office 10x16,the sound is outstanding,sitting very close listening to as they say things you've never heard.Yes a dac and amp like Peachtree would be nice but they still sound clear and loud.Theres obviously more but let me say thanks to abt for having a store where you can go instead of just a page you stare at.Let me say also before my purchase I contacted Def Tech my email was answered promptly,make that several emails,all my questions answered by Chet.Being older 58 to be exact todays technology is at the least very complicated.Ask for help from Abt experts and also the manufacturers of the products make it a good experience.

Service and delivery comments:

Absolutely Perfect

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Displaying reviews 1-10

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Definitive Technology Black Bookshelf Speaker

Definitive Technology Black Bookshelf Speaker

Discontinued


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