Does it fit under any car seat?

It is designed to mount directly under the co-pilot seat. Measure the clearance under your seat before buying, since the enclosure needs room to sit flat.

Do I need a separate amplifier?

No. The amplifier is built in, so you wire power, ground and the remote turn-on lead and feed it signal from your head unit.

Why is there no sound after installing it?

Check the three wires: 12V to battery positive, REM to the head unit's ACC or 12V, and GND to ground. A missing or loose remote wire is the usual cause.

Will it work in my car?

It is made for any car with a 12V power supply. It is not a factory-fit part, so expect to run wiring yourself or through an installer.

Is 600W real RMS power?

Treat 600W as the rated figure the maker lists. Real-world output from an underseat sub of this size is well below that, and it is meant to add fill, not to shake panels.

What comes in the box?

The speaker, a remote cable kit and a screw kit for mounting.

Where is the Fichiouy 8" Car Under-Seat Subwoofer cheapest?

At Walmart, for $72.18, as of our latest check.

What do buyers say about the Fichiouy 8" Car Under-Seat Subwoofer?

Rated 4 out of 5 from 1 ratings.

Fichiouy 8" Car Under-Seat Subwoofer

Best price now

$72.18at WalmartChecked Nov 13

Prices are checked against each store and labelled with when.

Visit Walmart

Fichiouy 8" Car Under-Seat Subwoofer

Best price now

$72.18at WalmartChecked Nov 13

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $72.18 at Walmart on Nov 13.

Our take on the Fichiouy 8" Car Under-Seat Subwoofer

The Fichiouy is an 8-inch active subwoofer in an aluminum-alloy enclosure that mounts under the passenger seat. It has a built-in amplifier rated at 600W, a 20Hz–150Hz response and a 4-ohm impedance, and it runs on the car's 12V supply. It suits drivers who want more low-end from a factory stereo without giving up trunk space. Against rival underseat subs it is a basic, no-frills unit: the rated power is a peak-style figure, and there is no DSP or app control that pricier slim subs offer.

Best forDrivers adding bass to a factory stereoSmall cars and trucks with little trunk spaceBudget-minded installsOwners who want a self-contained amp and driver

Pros

Built-in amplifier, so no separate amp is needed
Slim enough to mount under the passenger seat
Aluminum-alloy enclosure
Wide 20Hz–150Hz rated range
Works with any 12V car electrical system

Cons

600W is a rated figure, not measured output
No DSP, EQ app or remote level control beyond the included cable
Three-wire hookup needs care; wrong wiring means no sound
No crossover or gain tuning detail given
Little independent testing or owner feedback available

Fichiouy 8" Car Under-Seat Subwoofer prices at every store

WalmartNew
In stockSold by ColorfullrainReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$72.18Free shippingChecked Nov 13
Visit Walmart

About the Fichiouy 8" Car Under-Seat Subwoofer

This is an 8-inch active car subwoofer with a built-in amplifier. It is designed to mount directly under the co-pilot seat and adds low-frequency output to a car audio system.

The housing is aluminum alloy. The subwoofer works with any car that has a 12V power supply.

Three wires must be connected for it to work: 12V to the battery positive terminal, REM to the head unit's ACC output or to a 12V source in series, and GND to ground. If there is no sound after installation, check these three connections.

Size: 8 inch
Type: Active subwoofer with built-in amplifier
Rated power: 600 W
Frequency response: 20 Hz-150 Hz
Impedance: 4 Ω
Voltage: 12 V
Signal-to-noise: Greater than 90 dB
Material: Aluminum alloy
Mounting: Under the co-pilot seat
Wiring: 12V to battery positive, REM to head unit ACC or 12V in series, GND to ground
Compatibility: All cars with a 12V power supply
In the box: 1 speaker, 1 remote cable kit, 1 screw kit

Specifications

size: 8"Source

Questions and answers

Does it fit under any car seat?: It is designed to mount directly under the co-pilot seat. Measure the clearance under your seat before buying, since the enclosure needs room to sit flat.
Do I need a separate amplifier?: No. The amplifier is built in, so you wire power, ground and the remote turn-on lead and feed it signal from your head unit.
Why is there no sound after installing it?: Check the three wires: 12V to battery positive, REM to the head unit's ACC or 12V, and GND to ground. A missing or loose remote wire is the usual cause.
Will it work in my car?: It is made for any car with a 12V power supply. It is not a factory-fit part, so expect to run wiring yourself or through an installer.
Is 600W real RMS power?: Treat 600W as the rated figure the maker lists. Real-world output from an underseat sub of this size is well below that, and it is meant to add fill, not to shake panels.
What comes in the box?: The speaker, a remote cable kit and a screw kit for mounting.
Where is the Fichiouy 8" Car Under-Seat Subwoofer cheapest?: At Walmart, for $72.18, as of our latest check.
What do buyers say about the Fichiouy 8" Car Under-Seat Subwoofer?: Rated 4 out of 5 from 1 ratings.

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