DS18 HYDRO Nano Class D 4-Channel Marine Amplifier
September 2, 2026
DS18 HYDRO 4-Channel IP67 Marine Class D Amplifier
September 2, 2026
Original price was: $60,000.00.$58,000.00Current price is: $58,000.00.
IP67 waterproof 4-channel Class D marine amplifier delivering up to 4 × 200W RMS at 2Ω or 2 × 400W bridged, featuring selectable crossovers, UV and salt-fog protection, and advanced protection circuitry for marine and powersports audio systems.
Stock: available
DS18 HYDRO NXL-X600.4D 4-Channel Class D Marine Amplifier
Overview
The DS18 HYDRO NXL-X600.4D is a premium 4-channel Class D marine amplifier designed to deliver powerful, high-efficiency audio performance for boats, yachts, UTVs, ATVs, golf carts, and other powersports vehicles. With 150W RMS per channel at 4Ω, 200W RMS per channel at 2Ω, and 400W RMS bridged, it provides ample power for marine speakers or bridged subwoofer applications. Its IP67 waterproof construction ensures reliable operation in harsh marine environments.
Built with a rugged brushed aluminum chassis, UV and salt-fog protection, a 4-layer PCB, and advanced protection circuitry, the NXL-X600.4D is engineered for long-lasting durability. Selectable HPF / LPF / Full crossovers, clip indicators, and a 2CH/4CH input selector provide flexible system tuning for premium marine audio installations.
Main Features
- 4-channel Class D marine amplifier
- 1600W Peak Power
- 4 × 150W RMS @ 4Ω
- 4 × 200W RMS @ 2Ω
- 2 × 400W RMS @ 4Ω Bridged
- IP67 waterproof construction
- HPF / LPF / Full selectable crossover
- Variable crossover (40 Hz – 2 kHz)
- 2CH / 4CH input selector
- RCA pass-through outputs
- UV and salt-fog resistant
- Clip, Power, and Protection LED indicators
- Direct power harness with quick-connect plugs
Specifications
| Specification | Value |
|---|---|
| Brand | DS18 |
| Series | HYDRO NXL |
| Model | NXL-X600.4D |
| Part Number | NXL-X600.4D |
| Product Type | 4-Channel Marine Amplifier |
| Amplifier Class | Class D (Digital) |
| Channels | 4 |
| Peak Power | 1600 W |
| RMS Power @ 4Ω | 4 × 150 W |
| RMS Power @ 2Ω | 4 × 200 W |
| RMS Power @ 4Ω Bridged | 2 × 400 W |
| Frequency Response | 10 Hz – 20 kHz |
| Signal-to-Noise Ratio | >85 dB |
| Total Harmonic Distortion (THD) | <0.05% |
| Efficiency @ 4Ω | 87% |
| Input Sensitivity | 200 mV – 5 V |
| Input Impedance | 20 kΩ |
| Channel Separation | 60 dB |
| Selectable Crossover | HPF / LPF / Full |
| Crossover Range | 40 Hz – 2 kHz |
| Minimum Impedance | 2Ω Stereo / 4Ω Bridged |
| Power Input | 8 AWG Tinned OFC |
| Fuse Rating | 2 × 40 A (80 A Total) |
| RCA Audio Output | Yes |
| Input Selector | 2CH / 4CH |
| LED Indicators | Power / Protection / Clip |
| Waterproof Rating | IP67 |
| UV & Salt Fog Protection | Yes |
| Thermal Protection | Yes (75°C) |
| Overload Protection | Yes |
| Short Circuit Protection | Yes |
| Voltage Protection | 7–16 V |
| Chassis Material | Brushed Aluminum |
| Color | Black |
| Dimensions (L × W × H) | 252 × 112 × 45 mm (9.92″ × 4.40″ × 1.77″) |
| Weight | 2.27 kg (5 lb) |
Package Contents
- 1 × DS18 HYDRO NXL-X600.4D Marine Amplifier
- Power and speaker quick-connect harnesses
- Mounting hardware
- User manual
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