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Wet Sounds Sinister SDX2 two-channel car amplifier with full cast aluminium chassis

Wet Sounds

Wet Sounds Sinister SDX2 2-channel car amplifier 400 W stereo 1250 W bridged

SKU CH-8CYS-JW08F

A compact 2-channel car amplifier delivering 400 watts per channel at 4 ohms and 1250 watts bridged for high-output audio systems

  • Amplifier channels2
  • Product typeAmplifier
  • Delivers 400 W per channel at 4 ohms stereo
  • Provides 620 W per channel at 2 ohms stereo
  • Outputs 1250 W bridged into 4 ohms
  • Full cast aluminium chassis shared across all Sinister models
  • Advanced Class D power supply with patent-pending transformer design

Marine-grade power density

The Wet Sounds Sinister SDX2 is a 2-channel Class D amplifier built for 12 V car and marine audio systems. Its full cast aluminium chassis keeps the footprint identical across the Sinister range, simplifying installation in tight compartments. The patent-pending transformer design pushes output far beyond typical compact amplifiers.

Two-channel flexibility

In stereo mode the unit delivers 400 W per channel at 4 Ω or 620 W per channel at 2 Ω, letting you drive a pair of high-output speakers or subwoofers directly. Bridging the channels combines them into a single 1250 W output at 4 Ω, freeing the second channel for a different zone or leaving it unused for a simpler mono subwoofer setup.

Step up from entry-level amps

The jump is worthwhile when factory head-unit power or small 50 W × 4 amplifiers can no longer keep speakers clean at volume. It replaces under-powered multi-channel units that run out of headroom on demanding marine speakers. Builders who need more than two independent zones or who require DSP built into the amp will need a different solution.

How it compares

Measured against everything we stock in Car Audio Amplifiers, at today’s prices. Recalculated every night.

Price $1,250.99
Pricier than about 92% of the 158 comparable items (median $225.49).

Specifications

Product
Product typeAmplifier
Audio & video
Amplifier channels2

Questions about this item

Will the 400-watt stereo output hold up when I run the amp all day at 4 ohms?

The Sinister SDX2 delivers 2 x 400 watts RMS at 4 ohms continuously; the cast-aluminium chassis acts as a heatsink so thermal protection only engages after extended full-power operation.

How hot and loud does the chassis get during a full-day marine run?

The full cast-aluminium chassis dissipates heat passively with no fan, so it stays warm but not scorching and adds zero audible noise even after hours at 620 watts per channel into 2 ohms.

What impedance speakers do I need to match the 1250-watt bridged rating?

Bridged mode requires a single 4-ohm load; you must already own or buy one 4-ohm subwoofer or speaker pair wired to present exactly 4 ohms to the amp.

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