Wet Sounds Sinister SDX4 (OEM Sinister-SDX4) is a high-output, full-range Class D 4-channel marine amplifier engineered for efficient power delivery with Wet Sounds’ MAXED™ power-supply design. citeturn2search2turn2search7

RMS Power (CTA-2006 / 14.4V): 185W x 4 @ 4Ω, 340W x 4 @ 2Ω, or 685W x 2 bridged @ 4Ω. citeturn2search2turn0search0

• Channels: 4 (Sinister Series, full-range Class D) citeturn2search2
• Crossovers: Variable high-pass & low-pass, 30–290 Hz (12 dB/oct) citeturn2search2turn0search1
• Inputs: Low-level RCA (0.2V–6.1V); speaker-level input supported (adapter required) citeturn2search2turn0search6
• Included control: Dash-mount remote level control with 20 ft cable citeturn2search2turn0search1
• Install-friendly: Removable speaker plugs; recommended 4 AWG power/ground citeturn0search6turn0search0
• Frequency response: 8 Hz – 35 kHz (-3 dB); S/N: >90 dB citeturn2search2turn0search0
• Fusing: 4 x 30A citeturn0search6turn2search2
• Dimensions (L x W x H): approx. 10.25" x 14.5" x 3" citeturn0search0

Identifiers: Wet Sounds SKU WETSINISTER-SDX4 • UPC 814820024623. citeturn2search2

Before ordering: confirm speaker impedance, wiring gauge, and available mounting space to match your system design.