KEF Reference 8b Subwoofer

Marsoni

M251S

$6499.99

Get it in 3 business days with 1 day shipping. Friday, May 29

KEF Reference 8b SubwooferFor power with accuracy the Reference 8b sub has two 500W Class D amplifiers, each driving a 228mm (9 inch) long throw, ultra low distortion driver. These are connected back to back in a heavily braced, acoustically inert cabinet. The result is low distortion bass with effortless body and weight. Specifications: Model REFERENCE 8b LF Drive unit 2 x 225 mm (9in.) Frequency range at 90dB output in free space mode ( 6dB) 18Hz Frequency response at 90dB

Easy Shipping

Quick Dispatch:

Your KEF Reference 8b Subwoofer orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your KEF Reference 8b Subwoofer ships.

Need Help?
Questions about KEF Reference 8b Subwoofer, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for KEF Reference 8b Subwoofer in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

I bought this Amazon Basics office task chair for my boyfriend who works from home. Overall, it’s a decent, simple chair that gets the job done for everyday use, especially if you just need something functional and affordable. However, there are a couple of downsides. The recline doesn’t go back as much as he would like, so it’s not ideal if you prefer to lean back and relax between tasks. Also, after about a month of use, the wheels don’t glide as smoothly as they did at first, which can be a bit frustrating when rolling across the floor. Overall, it’s a solid basic chair for light use, but if you want something with a deeper recline or super smooth mobility long-term, you might want to consider other options. Still a reasonable purchase depending on your needs.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 12, 2026

Verified Purchase

Dime-Sized Dame

San Leandro, US

★★★★★ 5

Had for just over 9 years now and still pretty solid

Color: Black

I ordered this chair back in December 2015 for our front office, and it's been moved to our back shop where we fabricate. We're not a gentle work space by any stretch of the imagination; we build stuff and it's messy, lots of tools etc. This chair has held up surprisingly well! The faux leather is delaminating almost entirely on the seat but honestly, I'd expect that for faux leather on something that is used daily. The seat pad, in my opinion, has gotten de-poofed. So it's not plush anymore but still usable. I've asked the guy that's using it if they want an upgrade/update and they said they like it and don't want to change it out just yet. That's saying something! The size is nice and wide. We've had a range of differently sized folks sit in the chair over the years and the seat was always comfortable (less now without so much seat poof), I was able to sit cross-legged and the whole chair felt sturdy then as it does now. All of the standards functions you'd want an office chair to do, it can still do: it goes up and down smoothly, it rolls just fine, it's still pivot-reclines comfortably and doesn't feel like it's going to topple. I like it!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 15, 2026

Verified Purchase

Amazon Customer

Birmingham, US

★★★★★ 4

Good enough

Color: Black

Comfortable chair. Easy to put together. Allen nuts aren't cut perfectly so sometimes hard to get the wrench in there. My biggest complaint, and I didn't even realize this until I sat down in it, the arm rests are not adjustable and they are a little short for my liking.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 17, 2026