6.5 Inch Subwoofer V3 Long Strokers 65W 4ohm for Bass Tube & Home Theatre

Best quality product and good voice, deep or clear bass

Sound quality is very good

Very good Subwoofer speaker for home theater.You need to have speaker box to fit this subwoofer speaker.

Why did you pick this product vs others?:Awesome quality material n sound

This is my 4th purchase/return of this subwoofer. And this time It makes abnormal mechanical beating noise even at low volume, tested properly. Likely coil/suspension defect. Idk what to do. Thanks to amazon customer service I got refund this time too but I can't be sure can trust bia acoustic now? Ahhh that's all I can say.

Why did you pick this product vs others?:Very powerful bass. Marvellous product 😀

The product is quite good at this price range. The bass should be deeper after using equilizer app.

I used this speaker in a 10-year-old Sony HT-GT1 soundbar, and the sound quality matches up to 90% of the original—so that's impressive! However, the speaker's diameter didn't match perfectly—it was slightly smaller. But as we say in India, we're known for jugaad, and I made it work!One thing to note: I ordered this assuming it was 4 ohms, but when I checked with a multimeter, it showed 5.5 ohms. That might be why it only matched 90% in sound. If the resistance had been around 3.7 to 4 ohms (as measured), it probably would have performed even better.Overall, it's a good product and a decent replacement if you're doing a repair or DIY upgrade.