Sound type: full frequency (with treble) subwoofer. 1x Subwoofer Speaker. Speaker unit size: 8 ". -- Easy to install, can be installed directly under the driver's seat. -- Low frequency ability of the bass horn, high quality low tone output.
eBay
C6 Portable Wireless Bluetooth Speaker Waterproof Suction Cup Outdoor Sport Sound Box Mini Subwoofer Audio TF Mobile Loudspeaker
Aliexpress UK
Max Output Power: 600w / RMS: 90W. 1 x Active Subwoofer. 1 x Subwoofer High Level Input Line. Bass Boost: 0to+18db. Low Level Input Sensitivity: 300mV. High level Input Sensitivity: 0.9v. 1 x Audio Line.
eBay
HK-5008 USB Powered Soundbar Desktop Speaker Wired Computer Sound Box for TV Desktop Laptop with 2 Subwoofers Music Player
Aliexpress UK
Skar Audio introduces its SK series line-up of high-performance subwoofer enclosures to bridge the gap between competition-grade quality and universal fit pre-fabricated enclosures. Finished in a premium black carpet and featuring the Skar Audio logo on the lower left side, this enclosure will look sleek and attractive in any application.
eBay
Home Theater System PC Bass Smart Subwoofer Wired-compatible Speaker Portable Computer Speakers Music Boombox For Desktop
Aliexpress UK
Max Output Power: 600w / RMS: 90W. 1 x Active Subwoofer. 1 x Subwoofer High Level Input Line. Bass Boost: 0to+18db. 68 mm Slim fuselage, installed under the seat. Low Level Input Sensitivity: 300mV. High level Input Sensitivity: 0.9v.
eBay
TWS Speakers Handfree Portable Cell Phone Bluetooth Wireless Speaker Small Subwoofer Bass Sound Box Mini Soundbox Metal
Aliexpress UK
12" HEIGHT. I only use parcelforce for UK orders.
eBay
Portable Waterproof 100W High Power Bluetooth Speaker RGB Colorful Light Wireless Subwoofer 360 Stereo Surround TWS FM Boom Box
Aliexpress UK
This assures you of a box that not only sounds the way it was designed to sound but also will give you the most life from your W6 subwoofer. Built to JL specs. A sealed box is simple but if not done correctly and to the right specs your bass will suffer.
eBay
Portable Caixa De Som Bluetooth Speaker Wireless Radio FM Subwoofer Sound Box Music Bass Woofer Mini Waterproof Small Mp3 Column
Aliexpress UK
A used Subwoofer enclosure from Visual Ice. These are very solid and made of fibreglass - fits perfectly on the side. Used but in good condition. Get it delivered straight away instead of the usual 6 week waiting time!
eBay
HM11 Portable Bluetooth Speaker Wireless Bass Subwoofer Waterproof Outdoor for Car Stereo Loudspeaker Music Box for Ios/android
Aliexpress UK
In situations where space is limited and you require both protection for your subwoofer and exceptional bass performance, our full specification BLACKAIR loadedclosures are the perfect choice. Type - Passive Enclosure.
eBay
ZEALOT-S51 Powerful Bluetooth Speaker Bass Wireless Speakers Subwoofer Waterproof Sound Box Support TF, TWS, USB Flash Drive
Aliexpress UK