Does the TS400X4 work with 4 Ohm speakers?

It is rated at 2 Ohm, so 4 Ohm speakers will draw less power than the rating suggests. It will still play, but output is lower than with 2 Ohm loads.

Can I adjust the crossover frequencies?

No. The high-pass and low-pass filters are fixed at 90Hz, so you cannot tune them to your speakers.

Can it power a subwoofer?

It is a full-range 4-channel amp, not a dedicated sub amp. Bridging channels can drive a sub, but the fixed 90Hz low-pass limits control.

What power supply voltage does it need?

It accepts 8 to 16 VDC, covering a normal 12V car electrical system.

Yes, the four channels can be bridged in pairs for more power to two speakers.

Where is the Taramps TS400X4 2 Ohm 4 Channel Amplifier cheapest?

At Walmart, for $49.00, as of our latest check.

What do buyers say about the Taramps TS400X4 2 Ohm 4 Channel Amplifier?

Rated 4.2 out of 5 from 69 ratings.

Taramps TS400X4 2 Ohm 4 Channel Amplifier

Best price now

$49.00at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Walmart

Taramps TS400X4 2 Ohm 4 Channel Amplifier

Best price now

$49.00at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $49.00 at Walmart on Nov 8.

Our take on the Taramps TS400X4 2 Ohm 4 Channel Amplifier

The Taramps TS400X4 is a compact 4-channel car amplifier rated at 400 watts, built for full-range speaker duty in tight installs. It uses fixed 90Hz high-pass and low-pass crossovers rather than adjustable ones, so tuning is limited compared with rivals that offer variable filters. Owners praise its small footprint and clean output for the size, while some report it runs hot and needs solid wiring and ventilation. It suits budget-minded builds driving door speakers or rear fill, not subwoofer-heavy systems.

Best forDriving four door or coaxial speakersTight installs where space is scarceBudget full-range system buildsRear fill and component speaker setups

Pros

Very small chassis for a 4-channel amp
400W rating covers typical speaker loads
Fixed HPF and LPF simplify basic setups
Wide 18Hz–30kHz frequency response
Thermal and short-circuit protection built in

Cons

Crossovers fixed at 90Hz, not adjustable
2 Ohm rating limits flexibility with 4 Ohm speakers
Runs hot under sustained load
Modest input sensitivity needs a strong source signal

Taramps TS400X4 2 Ohm 4 Channel Amplifier prices at every store

WalmartNew
In stockSold by Level BrandsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$49.00Free shippingChecked Nov 8
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What reviewers say

4.2 / 569 ratings

Rated 4.2 out of 5 across 69 ratings, owners mostly like the compact size and output for the money. Complaints center on heat and the fixed crossover points.

What people mention

SizePraisedOwners repeatedly note how little room the amp takes up in an install.
HeatCriticisedSeveral say it runs hot and needs airflow or a fan.
CrossoverCriticisedThe fixed 90Hz filters are called limiting for tuning speakers.
Power outputPraisedBuyers find it delivers solid volume for door speakers.
BuildMixedSome like the sturdy case; others question long-term durability.

About the Taramps TS400X4 2 Ohm 4 Channel Amplifier

The Taramps TS400X4 is a 4-channel car amplifier rated at 400 watts. It comes in a small form factor. The TS Series is built for high-performance audio with power and low distortion.

It has high-pass and low-pass crossovers, both set at 90Hz. It also has a thermal protection system and short-circuit output protection.

Channels: 4
Color: Black
Input sensitivity: 200mV (Vol=Max)
Signal to noise: Greater than 90dB
Frequency response: 18Hz to 30kHz (-3dB), full range
High-pass crossover: 90Hz (-12dB / 8th)
Low-pass crossover: 90Hz (-12dB / 8th)
Input impedance: 22K ohms
Standby current: 0.8 A
Max musical power: 16.5 A at 13.8VDC
Max sine consumption: 33 A at 13.8VDC (1kHz)
Supply voltage: 8 VDC minimum, 16 VDC maximum
Protection: Thermal protection and short-circuit output protection

Specifications

color: BlackSource

Questions and answers

Does the TS400X4 work with 4 Ohm speakers?: It is rated at 2 Ohm, so 4 Ohm speakers will draw less power than the rating suggests. It will still play, but output is lower than with 2 Ohm loads.
Can I adjust the crossover frequencies?: No. The high-pass and low-pass filters are fixed at 90Hz, so you cannot tune them to your speakers.
Can it power a subwoofer?: It is a full-range 4-channel amp, not a dedicated sub amp. Bridging channels can drive a sub, but the fixed 90Hz low-pass limits control.
What power supply voltage does it need?: It accepts 8 to 16 VDC, covering a normal 12V car electrical system.
Is it bridgeable?: Yes, the four channels can be bridged in pairs for more power to two speakers.
Where is the Taramps TS400X4 2 Ohm 4 Channel Amplifier cheapest?: At Walmart, for $49.00, as of our latest check.
What do buyers say about the Taramps TS400X4 2 Ohm 4 Channel Amplifier?: Rated 4.2 out of 5 from 69 ratings.