Year-End SaleEnds 1/1/26. Limited quantities. No rainchecks.

Skip to content
Main Content

Customer Ratings & Reviews

No content
  • Front. Definitive Technology - SR-9040 10” Bipolar Surround Speaker, High Performance, Premium Sound Quality, Single - Black.
  • Left. Definitive Technology - SR-9040 10” Bipolar Surround Speaker, High Performance, Premium Sound Quality, Single - Black.
  • Back. Definitive Technology - SR-9040 10” Bipolar Surround Speaker, High Performance, Premium Sound Quality, Single - Black.
  • Alt View 11. Definitive Technology - SR-9040 10” Bipolar Surround Speaker, High Performance, Premium Sound Quality, Single - Black.
  • Alt View 12. Definitive Technology - SR-9040 10” Bipolar Surround Speaker, High Performance, Premium Sound Quality, Single - Black.
  • Definitive Technology BP 9000 Series Speakers video 2 minutes 11 seconds

Definitive Technology - SR-9040 10” Bipolar Surround Speaker, High Performance, Premium Sound Quality, Single - Black

Model:
SR9040
SKU:
5023605
Highly rated by customers for:
Your price for this item is $75.99
Clearance
The comparable value price is $299.99

Customer reviews

Rating 4.8 out of 5 stars with 161 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.9 out of 5 stars

  • Ease of Use

    Rating 4.9 out of 5 stars

Pros mentioned filter

Cons mentioned filter

98%would recommend to a friend

Customers are saying

Customers consistently note the excellent sound quality of the SR-9040 10” Bipolar Surround Speaker. They also find the speakers easy to install and appreciate the sleek design. However, some customers express a desire for more mounting options beyond the keyhole design. A few also mention the size as a potential drawback, preferring either smaller or larger versions depending on their needs.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 8 Showing 141-160 of 161 reviews
  • Pros mentioned:
    Sound quality

    Great Surround Sound

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These speakers are a must have for fantastic sound

    I would recommend this to a friend

  • Excellent speakers

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Exceptional clarity and performance ,make sure that you use them for 40 hours before doing a system balance to get the most out of them on you receiver. I have 4 of these speakers as my rear surround. Definitive technology speakers are extremely good

    I would recommend this to a friend

  • Happy Husband

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It was a Christmas gift to my husband and he loves it.

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    hear every noteclear

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    real true sound able to enjoy old records as if at a concert

    I would recommend this to a friend

  • Best

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It has been a long time since I have upgraded my system speakers. Had Bose, they never really gave me the sound I wanted. I needed a multi use speaker. TV for the family, music for me.

    I would recommend this to a friend

  • good sound

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I gave it a four because they are a bit high on the price.

    I would recommend this to a friend

  • Speaker

    |
    |
    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I came to Best Buy for a great speaker and they had this. Took time to tell me about it and loved it

    I would recommend this to a friend

  • Definitive Technology it don' get no better than t

    |
    |
    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great rear speakers and very powerful for there size.

    I would recommend this to a friend

  • Great speakers

    |
    |
    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Super nice! Was a Christmas gift for my boyfriend!

    I would recommend this to a friend

  • Great sound.

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These sound fantastic hooked up to a Niles SI-2100 amp.

    I would recommend this to a friend

  • Sound great

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Definitive technology speakers are awesome ! I recommend them !

    I would recommend this to a friend

  • Overprices for what you get

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    There are better products from competitors for less money. It has no Bass (stereo receiver says 110 hz cut off).

    No, I would not recommend this to a friend

  • N/A

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Didn't have the quality of sound. They were returned.

    No, I would not recommend this to a friend
    • Brand response from Definitivetech Team
      Posted .

      Sorry to learn you are not thrilled with the speakers. We appreciate the feedback, as we constantly work to improve our products and customer experience. If we can be of any assistance, please don't hesitate to reach out. Thank you for taking the time to post. https://support.definitivetechnology.com/

  • Did not like the sound

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    For the brand name did not give me the sounds I was looking for

    No, I would not recommend this to a friend
  • Pros mentioned:
    Design, Sound quality

    Speaker review

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product. Sounds great. Nice design, Great quality

    I would recommend this to a friend

  • 1 month wait!!!

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Not available for delivery until mid November!!!!!!

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    High Quality speaker and Sound Crystal Clear!

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought a pair of DT SR-9040 bipolar surround speakers. I use if for Home Theater and also for Karaoke. It sound crystal clear. It is a solid build speake.

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Love it

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Product and customer service excellent. Beyond my expectations. Fills room with incredible sounds

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Best of the Best

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great Speaker one of the Best hands down For the price I paid it was worth it

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Love them

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These are excellent speakers I have been more than satisfied with all their speakers. I love all of the speakers I have 2 tower speakers and I just purchased the 9080 center speaker i had the 9040 center speaker. If your looking for a great center speaker look into the 9080 the sub in it is great

    I would recommend this to a friend
Page 8, Showing 141-160 of 161 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2025 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.