





Kicker 48TRTP102 Sub 10 Inch Down Firing Subwoofer Loaded Enclosure 400w RMS
Couldn't Load Pickup availability
The Kicker 48TRTP102 is a 10 inch down-firing loaded subwoofer enclosure from the TRTP CompRT range, rated at 400W RMS into a single 2 ohm terminal. It combines a CompRT active sub with a reFLEX passive radiator in a low-profile MDF box designed to fit under a truck seat or in a boot.
This listing is the 10 inch. The TRTP Down-Firing Loaded Enclosure is also available in 12 inch (48TRTP122, 500W RMS).
Key specifications
- Subwoofer: 10 inch (25 cm) CompRT active sub plus reFLEX passive radiator
- Design: down-firing loaded enclosure
- Impedance: single 2 ohm terminal
- Recommended power: 400W RMS
- Peak power: 800W
- Dimensions: 65 cm L x 33.5 cm W x 14.2 cm H
- Construction: thick MDF with extensive internal bracing
TRTP CompRT 10" Down-Firing Loaded Enclosure — 2 Ohm
48TRTP102
The TRTP Down-Firing Loaded Enclosure fits under a truck seat, in a cargo area or in the boot. It delivers deep bass without sacrificing usable space, and is built to take cargo stacked directly on top.
The enclosure comes pre-loaded with a reFLEX passive radiator and a CompRT active sub, pre-wired to a single 2 ohm terminal. Thick MDF construction and extensive internal bracing keep the box solid under load.
The CompRT features red double stitching bonding an improved Santoprene surround to a polypropylene woofer cone. SoloKon technology joins the cone to a vented back brace, forming a single integrated unit that cools the motor and reduces distortion. Kicker's Forced-Air Cooling system helps the sub run approximately 20 per cent cooler than previous designs.
Recommended amplifier power is 400W RMS. If you need more output, the Kicker 48TRTP122 12 inch TRTP enclosure is rated at 500W RMS.
Explore the full range in Kicker Loaded Subwoofer Enclosures.
Specification
| Impedance | - 2 Ohm |
|---|---|
More specs
| |
What's Included
- Kicker CompRT 10 Inch 2 ohm
Kicker
About the Kicker 48TRTP102
From our tech experts at CEN
The Kicker 48TRTP102 is a 10 inch down-firing loaded subwoofer enclosure from the CompRT TRTP range, rated at 400W RMS into a 2 ohm load. It pairs a CompRT active sub with a reFLEX passive radiator inside a low-profile MDF box measuring 65 cm × 33.5 cm × 14.2 cm. The unit arrives pre-wired to a single 2 ohm terminal.
Who it suits
This suits truck and SUV owners wanting substantial bass without losing floor space. The low-profile box fits under a seat or in the boot, and thick MDF construction handles cargo stacked on top. Those wanting a smaller option could consider the Kicker 48TRTP82 8 inch version at 300W RMS.
Our tech experts advise
You will need a mono amplifier capable of 400W RMS into 2 ohms. Check the available space before ordering: the enclosure is 14.2 cm tall, 33.5 cm wide, and 65 cm long. Installation is priced per vehicle; see our car audio fitting 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
Frequently Asked Questions
Q: Do I need an amplifier for this subwoofer?
A: Yes, unless it is an active (powered) subwoofer with a built-in amplifier. Passive subwoofers need an external amplifier matched to the RMS power and impedance shown in the Specification tab.
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: Can CEN build or supply an enclosure and fit everything?
A: Yes. CEN supplies enclosures and offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to discuss your build.
Q: Is the subwoofer included with the Kicker 48TRTP102?
A: Yes. It comes loaded with a 10 inch CompRT active subwoofer and a passive reFLEX radiator, pre-wired to a single 2 ohm terminal.
Q: What amplifier does the 48TRTP102 need?
A: Use a mono amplifier that is stable at 2 ohms. Kicker recommends 400W RMS for this enclosure.
Q: How tall is the 48TRTP102?
A: It is 14.2 cm high, 33.5 cm wide and 65 cm long, which suits under-seat and boot floor installs.
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 →






































