Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm
Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm
Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm
Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm
Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm
Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm

Black Diamond Class D 4-Channel Full Range Amplifier | 200W RMS X 4 at 4-Ohm

$199.95
Brand: DS18Reviews
In stock. Usually ships in 1–3 business days.
  • Free US shipping on orders over $200. Add $0.05 more to qualify.
  • 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
  • Volume order? Get a quote: chat with us, email us, or add it to your cart and download a PDF quote.
D Questions about this product? Daniel and the team reply fast, usually within minutes. Chat with us now or email us.
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Black Diamond DIA-P1800X4D
Class D 4-Channel Full Range Amplifier

The DIA-P1800X4D delivers 200W RMS per channel at 4 ohms and increases to 320W RMS per channel at 2 ohms. When bridged, it pushes 600W RMS per channel at 4 ohms. Its frequency response spans from 20Hz to 20kHz, producing clear sound with only about 1% distortion.

Precise Sound Control
Input gain adjusts from 0.2 to 6 volts, and you can select full, low-pass, or high-pass crossover between 40Hz and 4kHz. This flexibility lets you tailor the sound precisely to your system’s needs.

Built for Endurance
This amplifier features thermal, overload, DC output, short circuit, voltage input, and clipping protections: ensuring stable operation. It uses 4 gauge power wiring and requires a 120A fuse for optimal safety.

Compact and Installation Friendly
The DIA-P1800X4D measures 9.64 inches long, 6.1 inches wide, and 2 inches tall. Its 8.66-inch heatsink efficiently dissipates heat for long-lasting performance.

 

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.

Chat with us

Business accounts

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

Ask about terms

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