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Deal.ai › Unbranded › 8 Car Subwoofers
Unbranded
Powered Under-Seat 8-Inch Slim Subwoofer with Amplifier, 240W Peak RMS for Car/Truck
Unbranded

Powered Under-Seat 8-Inch Slim Subwoofer with Amplifier, 240W Peak RMS for Car/Truck

Best price now

$96.73at WalmartChecked Nov 9

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Price facts

  • Last seen at $96.73 at Walmart on Nov 9.

Our take on the Powered Under-Seat 8-Inch Slim Subwoofer with Amplifier, 240W Peak RMS for Car/Truck

This is a slim 8-inch powered subwoofer with a built-in amplifier, rated at 240W peak and a 3.1-inch mounting depth so it can slide under a seat. It accepts both RCA low-level and high-level speaker inputs, so it can hook up to a factory head unit or an aftermarket one, and it covers a 50-150 Hz range. It suits drivers who want more low end without giving up cargo or footwell space. Against name-brand powered tubes and under-seat boxes, it is a basic no-frills unit: the shallow depth and dual inputs are the draw, but 8 inches and a 50 Hz low end limit how deep and loud it goes.

Best forDrivers short on cargo or footwell spaceFactory-radio owners wanting more bassTrucks, SUVs and RVs with room under a seatDIY installers comfortable running power and signal wires
Pros
  • Slim 3.1-inch profile fits under most seats
  • Built-in amplifier, no separate amp to mount
  • RCA and high-level inputs cover stock and aftermarket radios
  • Covers 50-150 Hz for music with mid-bass punch
  • Includes cables, hardware and a user manual
Cons
  • 240W peak rating says little about sustained output
  • 8-inch driver and 50 Hz floor limit deep sub-bass
  • Unbranded, so support and warranty are unclear
  • Install still needs a fused power run from the battery
  • No remote bass knob or detailed tuning controls listed

Powered Under-Seat 8-Inch Slim Subwoofer with Amplifier, 240W Peak RMS for Car/Truck prices at every store

  • WalmartNew

    In stockSold by a-xiuReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $96.73Free shippingChecked Nov 9
    Visit Walmart

About the Powered Under-Seat 8-Inch Slim Subwoofer with Amplifier, 240W Peak RMS for Car/Truck

This is an 8-inch powered subwoofer with a built-in amplifier, made to fit under a car seat. Its profile is 3.1 inches slim. It has a sealed enclosure and an aluminum alloy shell that helps dissipate heat.

It is rated at 120W RMS and 240W peak power, with a frequency response of 50-150 Hz. Distortion is below 0.4% and the signal-to-noise ratio is greater than 90%. Built-in protections cover overheating, short circuits and fuse faults.

It accepts low-level RCA input and high-level input, and includes a high-to-low level converter for main units without RCA output. It works in cars, SUVs, trucks and RVs. A user manual, cables and hardware are included. Disconnect the negative battery terminal during installation.

Speaker size
8 inches
Model
H-8
Thickness
3.1 inches
Rated power
120W RMS
Peak power
240W
Frequency response
50-150 Hz
Distortion
Below 0.4%
Signal-to-noise
Greater than 90%
Inputs
Low-level RCA, high-level input
Enclosure
Sealed
Shell
Aluminum alloy
Protection
Overheat, short circuit, fuse
Compatibility
Cars, SUVs, trucks, RVs
In the box
High-to-low level converter, RCA audio cable, high-level input cable, hardware, user manual

Specifications

size
H-8Source

Questions and answers

Will it fit under my car seat?
It is 3.1 inches tall, so it fits under most seats with a few inches of clearance. Measure the gap under your seat before buying, since power seat motors and vents can eat into it.
Does it work with a factory radio?
Yes. The high-level input takes speaker-level signal from a stock head unit, and the RCA input works with aftermarket radios that have subwoofer outputs.
How much power does it really make?
The 240W figure is a peak rating. Expect modest, sustained output that adds punch to rock, hip-hop and EDM rather than the deep, loud bass of a larger separate sub and amp.
What is in the box?
The subwoofer, RCA and high-level input cables, mounting hardware and a user manual. You still need a fused power wire run to the battery.
Is it hard to install?
No, but it is not plug-and-play. You run power from the battery, ground it to the chassis and tap an audio signal. Disconnect the negative battery terminal first.
How low does it play?
Its rated range is 50-150 Hz. That covers kick drum and bass guitar well but rolls off below 50 Hz, so very deep electronic bass will be softer than from a 10- or 12-inch sub.
Where is the Powered Under-Seat 8-Inch Slim Subwoofer with Amplifier, 240W Peak RMS for Car/Truck cheapest?
At Walmart, for $96.73, as of our latest check.

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