X 4-Channel Ultra Compact Class D Amplifier 4 x 70 Watts Rms @ 4-ohm
SOLD OUT






X 4-Channel Ultra Compact Class D Amplifier 4 x 70 Watts Rms @ 4-ohm
SOLD OUT
Sale $183.56 / EACH
Reg.$215.95
15% OFF FOR MOVING SALE!
Number of Channels: 4-Channel 70W RMS
-
Key Features
- 4 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 4 x 70 Watts @ 4 Ohm
- Power/Protection Indicator
- Ultra Compact Design
-
Technical Data - Manual
DOWNLOAD THE USER MANUAL
SPECS
SKU
X4
Class
Class D / Digital
Channels
4
Total Watts Peak
1320W
RMS Power @ 2 Ohm
140W x 4 CH
RMS Power @ 4 Ohm
70W x 4 CH
RMS Power @ 4 Ohm Bridge
220W x 2 CH
Frequency Response
20Hz - 20KHz
Signal/Noise Ratio
>90db
Selectable X-Over
LPF/FLAT/HPF
SPECS
Fixed Lpf Frequency
80Hz
Low Lever Input Range
0.2-5v
Input Configuration
2CH / 4CH
LEDs Indicate Working Status
Power/Protection
Minimum Impedance
2 Ohm
Power Input Size
12 GA
Fuse Rating
45 A
Thermal Protection
Yes
Over-load Protection
Yes
Dimensions
5.54 x 3.24 x 1.37” (inches)
SPECS
DC Output Protection
Yes
Short Circuit Output Protection
Yes
Voltage Input Protection
Yes
Heatsink Length
4.75”
Compact Size
Yes
Stable/Reliable Four Layers
Yes
Surface Mount
Yes
Audio Precision Quality Control
Yes
Configuration 2 CH / 4 CH Input Selector
Yes
-
Product Overview
Product Overview
DS18 X4 Ultra Compact Full Range Class D 4-Channel Car Amplifier 1140W
DS18’s X4 defies expectations by combining mind-blowing power with an incredibly compact design.
Featuring some of our smallest dimensions for an amplifier, DS18’s X4 effortlessly finds its place in even the tightest of spaces. Imagine the possibilities: you can now install multiple X series amps in any of your custom builds, daring you to complete the audio system of your dreams, all securely tucked away. Embrace your sound without compromising on size or power.
Don't let its size deceive you. The X4 delivers an astonishing amount of power for its compact size, making it an exceptionally versatile amplifier suitable for a wide range of applications. DS18’s X4 unleashes an astonishing output of 70W RMS x 4 channels at 4 ohm. But that's just the beginning. When Bridged at 4-ohm, the X4 releases an even mightier performance—220W RMS x 2 channels. Enough pure power to bring your music to life with unparalleled vitality.
Experience the peace of mind that comes with the X4's stability and reliability. This amplifier is built to endure, with a four-layered traces PCB design, surface mount component technology, and audio precision quality control verification. DS18 leaves no stone unturned when it comes to ensuring top-notch performance.
With easily adjustable filters, the X4 makes it a breeze to fine-tune your audio system. Effortlessly achieve the perfect balance for your mids and tweeters with the X2’s easily adjust LPF/FLAT/HPF filters, resulting in an immersive audio experience tailored to your unique preferences.
DS18’s X4 is a gateway to audio excellence — taking you on a journey you'll never want to end.




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X 4-Channel Ultra Compact Class D Amplifier 4 x 70 Watts Rms @ 4-ohm
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- Power/Protection Indicator
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- Class D
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- 2 x 140 Watts @ 4 Ohm
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- Class D
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- Power / Protect Indicator
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Number of Channels:
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- Class D
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- Power/Protection Indicator
- Ultra Compact Design
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- Class D
- 1 ~ 4 Ohm Stable
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- Power/Protection Indicator
- Ultra Compact Design
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- 2 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 2 x 140 Watts @ 4 Ohm
- Power/Protection Indicator
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- 2 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 2 x 140 Watts @ 4 Ohm
- Power/Protection Indicator
- Ultra Compact Design
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- 4 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 4 x 70 Watts @ 4 Ohm
- Power/Protection Indicator
- Ultra Compact Design
- 4 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 4 x 70 Watts @ 4 Ohm
- Power/Protection Indicator
- Ultra Compact Design
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- 4 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 4 X 120 Watts @ 4 Ohm
- Power / Protect Indicator
- Ultra Compact Design
- 4 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 4 X 120 Watts @ 4 Ohm
- Power / Protect Indicator
- Ultra Compact Design
Number of Channels:
- 4 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 4 X 120 Watts @ 4 Ohm
- Power / Protect Indicator
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- Class D
- 2 ~ 4 Ohm Stable
- 4 X 120 Watts @ 4 Ohm
- Power / Protect Indicator
- Ultra Compact Design
Number of Channels:
- 1 Channel Subwoofer Monoblock
- Class D
- 1 ~ 4 Ohm Stable
- 1 x 300 Watts @ 1 Ohm
- Power/Protection Indicator
- Ultra Compact Design
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- Class D
- 1 ~ 4 Ohm Stable
- 1 x 300 Watts @ 1 Ohm
- Power/Protection Indicator
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- 2 ~ 4 Ohm Stable
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- 2 x 140 Watts @ 4 Ohm
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- 4 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 4 x 70 Watts @ 4 Ohm
- Power/Protection Indicator
- Ultra Compact Design
- 4 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 4 x 70 Watts @ 4 Ohm
- Power/Protection Indicator
- Ultra Compact Design
Number of Channels:
- 4 Channel Full Range
- Class D
- 2 ~ 4 Ohm Stable
- 4 X 120 Watts @ 4 Ohm
- Power / Protect Indicator
- Ultra Compact Design
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- Class D
- 2 ~ 4 Ohm Stable
- 4 X 120 Watts @ 4 Ohm
- Power / Protect Indicator
- Ultra Compact Design
For 4 speakers I used two of these amps and am verp pleased with their performance. I'm getting plenty of power but on my Harley at highlway speeds, I fairing speakers just aren't big enough, so it's time ot speaker shop!
This little thing works amazing for how little it is%2C I’ve got it put behind a DS18 double din head unit it’s so small%2C so that way it would also only need little amount of wiring done to use%2C it sounds better and much louder now.
The speakers and amp made my ride a difference. I went from not being able to hear anything going 80mph to having to turn it down a notch because of how crisp and clear they were. I’m obsessed!!
5 stars This amp is what you want . I installed on my Street Glide ; fits perfectly inside the fairing on top of my head unit . Plenty of power and sound at highway speeds trust me you won’t be disappointed . It was packaged nice with easy to follow instructions for DIY installation. What are you waiting for?
Dont let this little amp fool ya it slams for sure, i have it on my harley with 2 ds18 6x9's and its loud forsure , cant beat the price , and amp is very small about the size of a smart phone, easy to hide on motorcycle, if your thinking about buying this amp id definitely go for it
Let customers speak for us
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the only issue I had was I couldn't find a radio on (Blue/white stripe) anywhere ut i was able to pick up a Acc/Run on terminal from my relay pack under the hood... and it Rocks !! I used the stock 25W jeep head and NVX dash and roll bar kit and this DS18 SQBASS Underseat Subwoofer im still tweaking the gain/boost/filter for the jeep but its close !!!

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This sound bar with the recommended AMP is definitely a big upgrade from factory. It’s super loud. We also had dash speaker/AMP upgrade and mounded the Sub box to the cargo door with 10” Subs/AMP. This sound system is so loud now you have no problem hearing it with the top, windows open, running 80 mph down the road. This was a Mother’s Day gift and my wife loves it.
