Shop

Deals
Deal checker
Black Friday
Buying guides
Brands
Stores

Travel

Flight deals
Hotel deals

Company

Research
Press
deal.ai apps

Black Friday 2026

Walmart
Best Buy
Target
TVs
Laptops
Headphones
Apple
Gaming
Vacuums
Kitchen
Toys
Smartwatches
Tablets
Furniture
Mattresses

© Deal.ai Inc.

Seventour

Seventour 10″ Ultra Slim Under Seat Powered Subwoofer

Seventour 10″ Ultra Slim Under Seat Powered Subwoofer

Best price now

$102.69at eBayChecked 11 h ago

Prices are checked against each store and labelled with when. Store links may earn us a commission.

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Ask our agent about this product

Enter to send, Shift+Enter for a new line

Price facts

Last seen at $102.69 at eBay on Nov 9.

Our take on the Seventour 10″ Ultra Slim Under Seat Powered Subwoofer

The Seventour is a powered under-seat subwoofer for cars and trucks, built around a 10-inch driver in a slim aluminum enclosure about 2.7 inches deep. It carries a built-in amplifier rated 220W RMS with 800W peak, plus adjustable gain, bass boost and crossover controls, and it adds Bluetooth, USB, aux and RCA inputs with a remote. The slim footprint and LED ambient lighting are its selling points against rival underseat subs, which are usually bulkier and plainer. It suits drivers who want more low end without giving up cargo or foot space, but it is a modest upgrade rather than a competition-grade sub.

Best forDrivers short on cargo or foot spaceTrucks and SUVs with room under the seatAdding bass to a factory stereoBuyers who want Bluetooth and wired inputs in one box

Pros

Very slim enclosure fits under most seats
Built-in amp means no separate amplifier to mount
Bluetooth plus USB, aux and RCA inputs
Adjustable gain, bass boost and crossover
Remote control for tuning from the driver's seat
Aluminum body with LED ambient lighting

Cons

220W RMS is modest for a 10-inch sub
A 500 Hz frequency figure is unusually high for a subwoofer and raises questions about true low-bass reach
Bluetooth adds latency and is not ideal for critical listening
LED lighting is a taste issue and not for everyone
Not waterproof, so keep it away from damp footwells

Seventour 10″ Ultra Slim Under Seat Powered Subwoofer prices at every store

eBayNew
Availability unknownSold by express-way
$102.69Checked 11 h ago
Visit eBay

Store links may earn us a commission.

Seventour 10″ Ultra Slim Under Seat Powered Subwoofer price history

Lowest price we've seen: $102.69 on Nov 9 at eBay. Tracked across 1 store since Nov 9.

Specifications

Waterproof: No
RMS Output: 220 Watts
Maximum Output: 800 W
Channels: 5.1 (surround sound channel configuration)
Amplification Type: Built in Amplifier
Mounting Type: Under Seat
Shallow Mount: Slim
Speaker Type: Subwoofer
Audio Highlights: Adjustable Gain, Bass Boost, Crossover Controls
Bluetooth: Yes
Connectivity Type: Wireless (Bluetooth), Wired (Corded Electric)
Ports & Interfaces: USB, Auxiliary, RCA
Control Method: Remote
Vehicle Type: Car
Compatible Devices: Tablet, Laptop, MP3 Player, Smartphone
Weight: 4.84 kg
Depth: 6.9 cm
Height: 25.9 cm
Width: 34.3 cm
Material: Aluminum
Illuminated: Yes (Dynamic LED Ambient Lighting Design)
Bass Boost: Yes
Frequency Response: 500 Hz

Questions and answers

Is 220W RMS enough for a car subwoofer?: It is enough to fill in bass under a factory system, but it will not match a separate amp and larger box. Expect added warmth and punch rather than deep, loud sub-bass.
Will it fit under my car seat?: At about 13.5 by 10 inches and 2.7 inches deep, it fits under many seats, but check the gap and seat rails first. Trucks and SUVs usually have the most clearance.
Do I need a separate amplifier?: No. The amplifier is built in, so you run power, ground and a signal source to the unit. That simplifies install compared with a passive sub and external amp.
How do I connect it to my stereo?: Use RCA, aux or speaker-level wiring for a wired connection, or Bluetooth for wireless playback from a phone or tablet. A remote handles gain and bass boost.
Does the LED lighting affect sound?: No, it is cosmetic ambient lighting. It can be a plus for show-style builds and a distraction for others.
Where is the Seventour 10″ Ultra Slim Under Seat Powered Subwoofer cheapest?: At eBay, for $102.69, as of our latest check.

Shoppers also compared

JBL BassPro Hub Subwoofer
Kicker 51HS8 Hideaway compact powered subwoofer with 8" sub and 150-watt amp
Kicker PL7TDF 53pl7tdf12 Powered Down-Firing 12" Enclosure
RWS12CA
JBL BassPro Nano
Rockville RWS12CA Slim 1200 Watt 12" Powered Car Subwoofer Enclosure + Wire Kit
Rockville SS10P 800W Slim Under-Seat Active Car/Truck Subwoofer Deep Bass
USS10