DS18 NXL-X1000.1D HYDRO Monoblock Subwoofer Class D Marine & Powersports Amplifier, 1000W RMS at 1 ohm, IP67

The DS18 NXL-X1000.1D HYDRO amplifier is designed to drive marine subwoofers with efficient Class D amplification. Its IP67-rated enclosure and variable audio adjustments make it suitable for boat, UTV, and off-road installations while preserving the distinct power specifications at each load impedance.

Key Features

• High-efficiency Class D output stage supports installation in constrained marine/powersports compartments.
• 1000W RMS at 1 ohm; individual load-specific ratings are listed below.
• Adjustable filtering supports speaker protection and system tuning.
• IP67 water-resistance classification; corrosion-conscious electrical installation remains essential.
• Integrated power, protect and clipping status indication and protective circuitry.
• Low-pass crossover, infrasonic filter, bass boost and phase adjustment help match subwoofer output to the enclosure and front speakers.

Technical Specifications

• Amplifier topology: Class D
• Channel arrangement: Monoblock Subwoofer
• Ingress protection: IP67
• RMS output at 4 ohms: 350W x 1
• RMS output at 2 ohms: 600W x 1
• RMS output at 1 ohm: 1000W x 1
• Peak power rating: 2000W
• Frequency response: 10–250Hz
• Signal-to-noise ratio: >82dB
• THD: <0.05%
• Efficiency at 4 ohms: 83%
• Input impedance: 20 kilohms
• Low-level input range: 200mV–5V
• Low-pass crossover: 50–250Hz
• Bass boost: 0–18dB at 42Hz
• Infrasonic filter: 10–55Hz
• Phase adjustment: 0–180 degrees
• Minimum impedance: 1 ohm
• Fuse specification: 2 x 50A (100A total)
• Power input: 4 AWG tinned OFC

Installation & System Integration

Provide a dedicated fused battery feed sized to the amplifier power demand, a short solid ground, sufficient mounting clearance and serviceable signal wiring. Connect each channel only to a supported speaker impedance. Bridged ratings require the specified 4-ohm load. Tune gain and active filters with the system playing cleanly rather than using gain as a volume control. Keep wiring, terminals and mounting points protected from saltwater and prolonged water immersion.

Compatibility

Use with 12V marine/powersports audio systems and speakers wired to meet the manufacturer-listed minimum impedances. Monoblock models drive subwoofer loads; multi-channel full-range/subwoofer models provide independent speaker and bass outputs.