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DS18 X Class D 2-Channel Ultra Compact Amplifier

DS18 X Class D 2-Channel Ultra Compact Amplifier

4.8(9 ratings)

Best price now

$214.95at Best BuyObserved at 12:33 AM

Compared across 5 stores. Prices are checked against each store and labelled with when.

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Our take on the DS18 X Class D 2-Channel Ultra Compact Amplifier

The DS18 X Class D is a two-channel car amplifier built into a 3.24-inch square case that weighs about 1.2 pounds, small enough to mount where most amps won't fit. It is rated at 380W RMS bridged into 4 ohms and 1140W peak, with a 20Hz–20kHz range, a built-in crossover and Bluetooth 5.0. The best new price is $214.95 at Best Buy as of November 6, 2026, and five stores carry it new.

Best forMotorcycle and ATV audio buildsTight installs under a seat or in a side panelPowering a pair of speakers or one bridged subBuyers who want Bluetooth streaming without a head unit

Pros

Very small footprint at 3.24 x 3.24 x 1.37 inches
Class D design runs cool and is over 80% efficient at 4 ohms
Bridgeable to 380W RMS for a single sub or speaker
Bluetooth 5.0 input means streaming without a separate receiver
Clean specs: over 90 dB signal-to-noise and under 0.2% THD

Cons

No preamp output, so it can't feed a second amp
Peak 1140W figure is far above the 380W RMS bridged rating
Bluetooth adds a wireless stage some purists would rather skip
Small chassis leaves little room for large-gauge power terminals

DS18 X Class D 2-Channel Ultra Compact Amplifier prices at every store

Audio JamNew
In stock
$215.95Observed at 12:33 AM
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AutoZoneNew
In stock
$215.99Observed at 12:33 AM
Visit store
WalmartNew
Availability unknown
$214.95Observed at 12:33 AM
Visit store
Best BuyNew
Availability unknown
$214.95Observed at 12:33 AM
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eBayNew
Availability unknownSold by hookedontronics
$226.95Observed at 12:33 AM
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Also available at

AmericanMuscle.comCheck price at AmericanMuscle.com
AmericanTrucks.comCheck price at AmericanTrucks.com
BigJeffOnlineCheck price at BigJeffOnline
DBs Car AudioCheck price at DBs Car Audio
DS18Check price at DS18
Eckler'sCheck price at Eckler's
ExtremeTerrain.comCheck price at ExtremeTerrain.com
SonicElectronix.comCheck price at SonicElectronix.com

DS18 X Class D 2-Channel Ultra Compact Amplifier price history

Lowest price we've seen: $214.95 on Nov 6 at DS18. Tracked across 13 stores since Nov 6.

Specifications

Number Of Channels: 2
Amplifier Class: Class D
Bridgeable: Yes
Bluetooth: 5.0
Depth: 3.24 in
Height: 1.37 in
Width: 3.24 in
Weight: 549 Grams
Output Channel Quantity: 2
Preamp Output: No
RMS Power Rating: 380W x 1 CH (@ 4 Ohm Bridge)
Total Power Output: 1140W (Peak)
Output Channels: 2
Signal-To-Noise Ratio: >90 dB
Total Harmonic Distortion: <0.2%
Operational Power Consumption: >80% (Efficiency @ 4 Ohm)
Power Supply Type: DC
Type: Class D
Design Highlights: Ultra Compact Design, Surface mount component technology
Frequency Response: 20Hz - 20Khz
Sound Output Mode: Stereo
Audio Processing Highlights: Audio Precision Control
Crossover: Yes
Display Highlights: Power/Protection Led Indicator, Power/Protection Indicator

Questions and answers

Is 380W RMS enough for a subwoofer?: Bridged into 4 ohms it delivers 380W RMS, which suits a single modest sub or a pair of efficient speakers. Large subs that want 500W or more will be underfed.
Can I run it without a head unit?: Yes. Bluetooth 5.0 lets you stream straight to the amp, so it works in a motorcycle, ATV or classic car with no radio.
Does it have a preamp output for a second amp?: No. There is no preamp output, so a second amplifier would need its own signal source.
What size is it?: It measures 3.24 inches wide and deep and 1.37 inches tall, and weighs 549 grams, so it fits in spaces a normal amp won't.
Is $214.95 a good price?: It is the best new price across the five stores that carry it as of November 6, 2026. Check the price history before buying to see whether it has sold lower.
Where is the DS18 X Class D 2-Channel Ultra Compact Amplifier cheapest?: At Best Buy, for $214.95, as of our latest check.
What do buyers say about the DS18 X Class D 2-Channel Ultra Compact Amplifier?: Rated 4.8 out of 5 from 9 ratings.
Where can I buy the DS18 X Class D 2-Channel Ultra Compact Amplifier?: 13 stores we checked sell it, including Walmart, Best Buy, Audio Jam, AutoZone, eBay.

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