X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - front view | Silarius X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - side view | Silarius X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - rear view | Silarius X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - detail view | Silarius X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - detail view | Silarius X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - detail view | Silarius
X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - front view | Silarius
X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - side view | Silarius
X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - rear view | Silarius
X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - detail view | Silarius
X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - detail view | Silarius
X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm - detail view | Silarius

X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm

$274.95
Brand: DS18Reviews
Out of stock. Ask us for the lead time or an equal alternative.
  • Free US shipping on this item.
  • 30-day returns from delivery.
    Return terms: you pay shipping both ways, 3% card fee, 30% if opened
    • 30 daysfrom delivery to start a return
    • Shipping both waysto you and back to us, paid by you
    • 3% card feededucted from every refund
    • 30% open-box feeif the box has been opened
    • Special ordersno returns without a manufacturer RMA
    • Discontinued itemsnot returnable

    Wrong or defective items, and items damaged in transit with Package Protection, are always covered with no fees. Full return policy

  • Manufacturer's warranty from DS18. Warranty
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Reviews

Ultra Compact Class D 4 Channel Amplifier

DS18’s X4XL is audio excellence! This powerhouse delivers exceptional performance in an incredibly compact package, perfect for every car audio enthusiast.

With a staggering 1800W peak power and 4 x 120W RMS at 4 ohm, 4 x 180W RMS at 2 ohm, and 2 x 300W RMS at 4 ohm Bridge— the X4XL delivers relentless sound that’s anything but subtle. Its sleek, ultra-compact design lets it slip into the tightest spaces without sacrificing muscle. Plus, with versatile crossover settings (LPF/FLAT/HPF) at a comprehensive range (40Hz-500Hz) and 2 ch/4 ch input selector, you’re in control of your sound like never before.

The X4XL stands out for its unparalleled combination of compact size and robust power. Advanced surface mount technology and a stable four-layer PCB design ensure exceptional durability and performance. Rugged and reliable, this amplifier is fortified with thermal, over-load, and short circuit protection—because your system deserves nothing less.

Grab the X4XL now and give your system the power it deserves!

Shipping

Free US shipping on orders over $200. Orders under $200 ship at the rate shown at checkout. Oversized items ship by freight; we confirm the quote with you first.

Shipping policy

Returns

Start within 30 days of delivery. On change-of-mind returns you pay:

  • Shipping both ways, to you and back to us
  • A 3% card processing fee
  • A 30% open-box fee if the box was opened

Special orders need a manufacturer RMA. Discontinued items can't be returned. Defective items are always covered.

Start a return

Damaged or wrong item?

Tell us within 3 days of delivery with photos and we'll make it right, with no fee.

Contact us

DS18 warranty

This product is covered by the manufacturer's warranty. We help you with the claim from start to finish.

Warranty details

Support from real people

Setup questions, compatibility, firmware: chat with a specialist or email info@silarius.com, Monday to Friday, 8am to 4pm ET.

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Business accounts

Approved businesses can pay on Net 30 / PO terms after their second completed order.

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Frequently Asked Questions

How many channels does the X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm have?+
Channel count is listed in the product specs. DS18 amplifiers are available in mono, 2-channel, 4-channel, and 5-channel configurations.
What is the RMS power output of the X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm?+
Rated RMS power is in the product specifications. Match the amp's RMS output to your speakers' RMS handling for best performance.
Does the X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm have built-in crossovers?+
Most DS18 amplifiers include built-in high-pass and low-pass crossover filters. Some also include a subsonic filter for subwoofer applications.
What wire gauge does the X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm require?+
Refer to the product manual for recommended power wire gauge. Higher-power amplifiers typically require 4 AWG or larger.
Is the X 4-Channel Ultra Compact Class D Amplifier 4 x 120 Watts Rms @ 4-ohm compatible with my head unit?+
This amplifier accepts standard RCA inputs and speaker-level inputs, making it compatible with most factory and aftermarket head units.

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