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Customer Ratings & Reviews

Your price for this item is $124.99
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The comparable value price is $249.99

Customer reviews

Rating 4.7 out of 5 stars with 2770 reviews

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  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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95%would recommend to a friend

Customers are saying

Customers express satisfaction with the Core Series 10" 115W Active Subwoofer, particularly praising its great sound quality and powerful bass. The subwoofer's awesome price, ease of use, and small size are also appreciated. A minor concern is the cable length, with some customers wishing for a longer connection cable option.

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 7 Showing 121-140 of 2,770 reviews
  • Pros mentioned:
    Size

    Rated 5 out of 5 stars

    Sony did it again!

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

    Small but powerful - able to connect all my devices!

    I would recommend this to a friend
    • Brand response from SonyListens
      Posted .

      Hi Dukes,

      Amazing! We're glad that you like the size and sound quality of the SACS9. It's also great that the subwoofer is perfect for your entertainment setup. You’re going to love the room filling sound that Mica-Reinforced drivers can deliver. You’ll experience deeper, more precise bass reproduction than ever before and be amazing as your music and movies come alive! Thank you for choosing Sony!

      -Ralph Sony_US

  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Great for small/medium rooms

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

    I’m using this subwoofer with a pair of Audio Engine bookshelf speakers and an Onkyo receiver in a medium sized bedroom. The sound is full, well balanced, and capable of more volume than I would ever need. It could easily service an average-sized living room or den. I primarily listen to music including vinyl and this is great for a low-budget hi-fi setup. One small issue is that that protective felt cover was damaged during shipping and can no longer attach correctly. Fortunately, I didn’t plan on using it.

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

    Rated 5 out of 5 stars

    Excellent Bass at a Budget Price

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

    I am using this subwoofer with the sony series 5 center channel, 2 bookshelf sony series 5 speakers for the fronts, and 2 older polk bookshelf speakers for the rears, along with a older yamaha receiver in a bedroom 5.1 system. This sub sounds surprisingly good, as it has a pleasing tone and integrates well with the rest of the system. I was lucky enough to purchase it from BB at half price ($99), but even at full price its worth the purchase. Highly recommended.

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

    Rated 5 out of 5 stars

    Excellent piece of equipment

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

    If you want base, get it if you like loud noise, get it if you’ve been in the theater in your house and get it if you like quiet base get it feel like loud base and get it just get it

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

    Rated 5 out of 5 stars

    Feel the Sound

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

    My speakers consist of Bose 930 speakers, Bose cube speakers, and Bose center speaker. I recently bought a new Sony 65" 4K TV and Sony 550 Receiver. Added to these, I bought this Sony subwoofer. I was amazed at how much the sound jumps out and grabs you with the addition of this subwoofer. I've had these Bose speakers for over 20 years and they never sounded as good as they do with this Sony subwoofer. If you don't have a subwoofer for your speakers then you're missing out. This is a great addition at a great price. Bring that movie theater sound to your home.

    I would recommend this to a friend
  • Pros mentioned:
    Bass, Ease of use, Sound quality

    Rated 5 out of 5 stars

    Exactly what you’d expect from Sony!

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

    Excellent sound, real deep bass a win win! Setup was super easy! And it’s Sony, a trusted name!

    I would recommend this to a friend
    • Brand response from SonyListens
      Posted .

      Hi CADMDB! Awesome! Glad to hear that you are enjoying the amazing sound quality and easy setup of your new SACS9! You’re going to love the room filling sound that Mica-Reinforced drivers can deliver. You’ll experience deeper, more precise bass reproduction than ever before and be amazing as your music and movies come alive! Thanks for your purchase! -Carl Sony_US

  • Pros mentioned:
    Bass

    Rated 5 out of 5 stars

    Good subwoofer from Sony

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

    Fantastic subwoofer for a mid size room. Strong bass.

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

    Rated 4 out of 5 stars

    Great subwoofer for size and price

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

    I did a good bit of research before purchasing this subwooofer. My intentions were to have a moderately priced one to add on to my home theater. This sub fills that need well. It's small but puts out a good sound and a good bass. Movies and music both have that pop they need. The size and design are both great, nothing too big and looks great as an addition to my current setup. One thing I couldn't find no matter the research I did; this comes with a RCA cable to connect and it's own power cable. If you're looking for a starter sub for a good price, easy setup, and good sound this is it!

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

    Rated 5 out of 5 stars

    Great, inexpensive subwoofer

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

    I got this to replace another Sony subwoofer that wore out and had severe distortion. That was only 8" and 50 watts. This new one sounds very good and is only slightly bigger than my old one. All the setting controls are in back. They include level and cutoff frequency dials, phase switch, power save switch and power button. There are terminals for speakers but I connected my receiver directly using the line-in jack. Everyone with a home theater system should have a subwoofer. It adds a lot of depth to the overall sound.

    I would recommend this to a friend
  • Pros mentioned:
    Bass, Price

    Rated 4 out of 5 stars

    Feel the action.

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

    A good subwoofer is essential for any sound system if one wants to feel the music or the action. This is a good budget subwoofer.

    I would recommend this to a friend
    • Brand response from SonyListens
      Posted .

      Hi JOB1951, Awesome! We are so glad to hear that you are happy with your new SACS9! Thank you for choosing Sony! -Carl Sony_US

  • Pros mentioned:
    Ease of use, Size, Sound quality

    Rated 4 out of 5 stars

    Great size for apartment

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

    This was a good solution to add to my stepdaughters sound bar in her apartment. Not too big, not too boomy. Easy straight forward set up! Good to go and one happy stepdaughter!

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

    Rated 5 out of 5 stars

    Great bass sound

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

    Real deep bass and clear sounding woofer. So clean that I enjoy the music

    I would recommend this to a friend
    • Brand response from SonyListens
      Posted .

      Hi Roraima, We are glad to hear that you're enjoying the deep bass and clear sound of the SACS9 woofer. The SACS9 is designed to deliver powerful bass and clear audio, enhancing your music listening experience. Thank you for choosing Sony! -Carl Sony_US

  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Big Improvement to My In-Ceiling Speaker System

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

    Recently purchased a house with older Energy EAS-6C ceiling speakers that had somewhat decent sound. Added the Sony Core SACS9 subwoofer and wow, it really sounds like I have a premium speaker system throughout the house. Had no problem hooking it up to my Onkyo TX-NR7100 receiver. Big improvement, happy camper here.

    I would recommend this to a friend
    • Brand response from SonyListens
      Posted .

      Hi BobB, Thanks for the 5-star rating! We're glad you like your new speaker. Enjoy and thanks for choosing Sony. -Carl Sony_US

  • Pros mentioned:
    Ease of use, Sound quality

    Rated 5 out of 5 stars

    Good subwoofer, great price

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I already had a set of JBL home theater speakers when I bought my latest TV and I needed a subwoofer. After reading reviews for budget-minded subs, I bought this one. Hook up was easy to my Onkyo receiver, everything worked on the first try. The low end is really excellent for either movies or music. A year and a half later, I'm still happy with this subwoofer

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

    Rated 5 out of 5 stars

    Little package, BIG sound.

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

    Deep, rich bass. Makes the sound jump off the screen. I actually use onlyba fraction of its power cause it shakes the house.

    I would recommend this to a friend
    • Brand response from SonyListens
      Posted .

      Hi BestBuyShopper, Awesome! We're glad you like the deep and rich bass sound that this unit delivers. Thanks for choosing Sony! -Sam Sony_US

  • Pros mentioned:
    Price, Sound quality

    Rated 5 out of 5 stars

    Great sub for the Price, Great value!

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

    Great subwoofer for the price. If you are looking for a sub $300 sub, then this is a great option. Fills the room (20x26 sq) with bass and decent volume without distortion.

    I would recommend this to a friend
    • Brand response from SonyListens
      Posted .

      Hi Michael, Perfect! We're happy to hear that you're enjoying the room-filling sound that this unit delivers without any distortion. Thanks for choosing Sony! -Sam Sony_US

  • Pros mentioned:
    Sound quality

    Rated 5 out of 5 stars

    Bass is awesome

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

    I bought this sub to pair it with my brand new Sony strdh590 reciever. I already had 5.1 speaker/sub set but unfortunately my subs were not able to utilize the sub jack due to them being powered by the reciever and not a power supply. So I had them bridged with my left and right front speakers, so all audio was about the same with some bass. Not the sound I was looking for. Could not even find The proper wires to assist me in my new venture for sound. So after researching Yamaha xenon and Sony I went with the Sony because it pushed the best wattage of the other competitors in the price range. And I must say this little box rocks. And paired with the Sony strdh590 4k reciever my enjoyment of my purchase had me excited to test everything on it. I have my ps4 pro connected to it with my gaming pc. Unfortunately my games on pS4 would only scale to 1990 resolution with hdr So I ended up plugging the ps4 back directly to me tv which is a Samsung q90t Because it gives me full 3840 resultion I need for cod warzone lol. My pc however is from cyberpower pc and is able to push max 4k at 4096 playing and watching movies on this bad boy is flawless looks like your there. And am able to enjoy all dolby audio and dts sound on in including dtsx and Dolby atmos in 5.1 or 7.1 audio all my devices were all purchased from best buy and now I'm looking into purchasing to more surround sound speakers to utilize 7.1 capabilities. All on all, I am very pleased with my new rig. I definitely recommend the reciever for awesome sound.

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

    Rated 5 out of 5 stars

    Clean Clear Sound

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

    I bought 2 of these while they were on sale and used them to replace an old Jensen JP10 subwoofer which finally failed after many years of use. These speakers produce clean clear bass and now having a receiver with 2 sub outs and having 2 hooked into the system gives a fuller bass experience in the room. Nice sound quality especially for the price range.

    I would recommend this to a friend
    • Brand response from SonyListens
      Posted .

      Hi Munteg, we're glad you like the sound quality of our product. You’re going to love the room filling sound that Mica-Reinforced drivers can deliver. You’ll experience deeper, more precise bass reproduction than ever before and be amazing as your music and movies come alive! Thanks for your purchase. ~Earl Sony_US

  • Pros mentioned:
    Sound quality

    Rated 4 out of 5 stars

    Nice value subwoofer, good for home theater and mu

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

    Nice budget subwoofer. Works great for home theater and with an integrated 2.1 amplifier for music. I have mine connected to a switch box so that I can switch the inputs between my AVR and a stereo integrated amplifier. The bass is punchy and well-defined. It takes both RCA and speaker wire inputs. This is a very good value, especially when it goes on sale. I definitely recommend it for a small-to-medium room to give your home theater excitement or to give your music the kind of warmth that only a subwoofer can provide.

    I would recommend this to a friend
    • Brand response from SonyListens
      Posted .

      Hi BestBuyer, Thanks for purchasing your new SA-CS9 115W 10” Active Subwoofer. You’re going to love the room filling sound that Mica-Reinforced drivers can deliver. You’ll experience deeper, more precise bass reproduction than ever before and be amazing as your music and movies come alive! Thanks for your purchase! -Carl Sony_US

  • Pros mentioned:
    Bass

    Rated 5 out of 5 stars

    For a budget subwoofer, no complaints

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

    First off, know what you are and are not getting for this price point. It is a 10" subwoofer with relatively low wattage, not a 12" subwoofer with high RMS wattage. That said, my 15-year old JBL subwoofer finally quit and I needed a new subwoofer without wanting to upgrade the whole system just yet. I was a little reluctant to get this based on the 10" woofer and low RMS, but decided it might be OK for the short-term. I have to say, I was impressed that it comes with a crossover feature to help fit in to your existing speakers and, frankly, the RMS is adequate for my listening, even in a larger room with 18-foot ceilings. I don't care about seat-rattling bass but do demand solid bass in the mix. In short, this subwoofer delivers bass at a reasonable level and, perhaps more importantly, within the correct sonic range with the included crossover adjustments. At its usual price point, I would recommend without hesitation.

    I would recommend this to a friend
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