Couldn't Load Pickup availability
The Kicker 46CWTB84 is an 8" TB weatherproof loaded tube subwoofer enclosure featuring a 4 ohm CompR woofer and an opposing passive radiator, rated at 300W RMS. It is part of Kicker's TB range of compact, cylindrical subwoofer enclosures.
This listing is the 4 ohm version. The TB 8" enclosure is also available in a 2 ohm 46CWTB82, and the TB range extends to a 10 inch 46CWTB104.
Key specifications
- Woofer: 8" CompR, 4 ohm, plus passive radiator
- Enclosure: thick ABS tube, reflex (passive radiator) design
- Power handling: 300W RMS, 600W peak
- Sensitivity: 84.4 dB 1W/1m
- Mounting: horizontal or vertical
- Dimensions (horizontal): 21.6 cm W x 21.9 cm H x 32.8 cm D
- Grilles: included
TB 8" Loaded Weatherproof Tube Enclosure — 4 Ohm
The TB tube enclosure mounts in locations where a traditional box simply will not fit. Horizontal or vertical, it delivers deep, loud bass without eating into your vehicle's usable space.
Features
- 4 ohm CompR woofer with passive radiator (reflex design)
- 300W RMS power handling
- Thick ABS tube construction
- Flexible horizontal or vertical mounting system
- Spring-loaded speaker terminals
- Ceramic magnet
- Advanced heat management system
- Signature double red stitching
- Grilles included
The passive radiator sits opposite the primary subwoofer inside the tube. Unlike a conventional driver, it has no magnet or voice coil — it works with the CompR woofer to extend bass output without requiring a larger enclosure.
Explore the full range in Kicker Loaded Subwoofer Enclosures.
Specification
| Style | Reflex (passive radiator) |
|---|---|
| Woofer Quantity | 1 |
| Colour | Black |
| Impedance | (Ohms) 4 |
| RMS Power (W) | 300 |
| Peak Power (W) | 600 |
| Sensitivity | (dB @ 1W/1m) 84.4 |
| Frequency Response | (Hz) N/A |
| Height (cm) | 21.9 |
| Width (cm) | 21.6 |
| Top Depth (cm) | 32.8 |
| Bottom Depth (cm) | 32.8 |
| Grilles | Included |
| Built-in Amplifier | No |
What's Included
- 1 enclosure assembly
- 2 vertical mounting brackets
- Horizontal mount base and hardware
- Stainless steel mounting fasteners and nylon washers
- Grilles
- Owner's manual
Kicker
About the Kicker 46CWTB84
From our tech experts at CEN
The Kicker 46CWTB84 is an 8 inch TB weatherproof loaded tube subwoofer enclosure, housing a 4 ohm CompR driver and an opposing passive radiator, rated at 300W RMS. The thick ABS tube measures 21.6 cm wide by 32.8 cm deep and mounts horizontally or vertically. The passive radiator works alongside the CompR driver to extend bass output without increasing enclosure size.
Who it suits
It suits drivers who need deep bass but cannot fit a traditional box enclosure. The weatherproof build also makes it suitable for exposed or outdoor installations. For a self-contained powered alternative, see the Kicker Hideaway 51HS10.
Our tech experts advise
This enclosure requires a separate mono amplifier rated around 300W RMS at 4 ohms; the Kicker KEY500.1 is a suitable match. Grilles and all mounting hardware are included in the box. Fitting is priced per vehicle — see our car audio installation page for details.
Explore the full Kicker range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Kicker
Recommended For You
Discover more top-rated gear, handpicked to go with what you're viewing
Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
More from Kicker Loaded Subwoofer Enclosures
More options from the same range, in stock and ready to go
Kicker 46CWTB82 8″ 2 Ohm Weatherproof Subwoofer Enclosure
£319.95
View product
Kicker 44DL7S122 Dual 12 Inch L7S Subwoofer Solo Baric Loaded Enclosure 1500w
£849.95
Kicker 48TRTP122 Sub 12 Inch Down Firing Subwoofer Loaded Enclosure 500w RMS
£339.95
Kicker 49DL7TDF122 Dual 12 Inch L7T Subwoofer Down Firing Loaded Enclosure 1200w
£699.95
Kicker 45VL7R102 Sub 10 Inch L7R Ported Loaded Subwoofer Enclosure 500w RMS
£369.95
Frequently Asked Questions
Q: Does the Kicker 46CWTB84 have a passive radiator?
A: Yes. A Reflex passive radiator sits opposite the CompR woofer inside the tube. It has no magnet or voice coil and works with the woofer to deepen the bass without a bigger enclosure.
Q: Can the 46CWTB84 be mounted vertically?
A: Yes. The flexible mounting system lets you mount it horizontally or vertically.
Q: What impedance is the 46CWTB84?
A: It is a 4 ohm model rated at 300W RMS. A 2 ohm version is also available.
Not Sure Where to Start?
Straightforward advice and the latest news from our Nottingham team.
All Guides and News →
Car Audio
Christmas Gift Guide 2026: Car Audio, Dash Cams and Outdoor Tech
Read the guide →
Car Audio
Upgrading Car Audio Without Replacing the Factory Stereo
Read the guide →
Car Audio
Amplifier Wiring Kits Explained: Gauge, Fuses and Earths
Read the guide →
Car Audio
New at CEN: Option Audio Drive-10Flat — Golf Mk8 Bass, Zero Boot Space Lost
Read more →
Car Audio
Car Speaker Sizes Explained: What Fits Your Car
Read the guide →
Car Audio
Alpine iLX-F905D Halo9 Review: The Big-Screen Upgrade for Almost Any Car
Read more →