Description

DS18 NVY-IPX7.4
The NVY‑IPX7.4 is a rugged, 4‑channel full‑range digital car/marine amplifier designed for powerful, clear sound in harsh environments, from boats to off‑road vehicles. With an IPX7 waterproof rating, it can be submerged in up to 1 meter of water for 30 minutes, making it ideal for marine and outdoor use. It features a 2 CH/4 CH input selector for flexible power allocation, built‑in crossovers (HPF, LPF, full‑range), and advanced digital amplification technology, delivering strong performance across all four channels with bridgeable outputs and comprehensive protection systems for safe, reliable operation.
Specifications
| Specification |
Value |
| Frequency Response |
20Hz – 20kHz |
| Signal to Noise Ratio |
1W @ 4Ω >90dB |
| Efficiency @ 4 ohm |
94% |
| Input Impedance |
>20kΩ |
| Channel Separation |
>-70dB |
| Total Harmonic Distortion (THD) |
<0.1% |
| Low Level Input Range |
270mV – 5.6V |
| Selectable X-Over |
HPF / FULL / LPF |
| X-Over Filter Range |
50Hz – 4kHz |
Features
| Specification |
Value |
| Amplifier Class |
Digital (D) |
| Amplifier Type |
Full Range Digital Marine Amplifier |
| Number of Channels |
4 |
| Minimum Impedance |
2 ohms/Ch (4 ohm Bridge) |
| LED Indicator |
Protection (Red) / Power (Blue) |
| Power Input Size |
8Ga |
| Fuse |
2 × 30A |
| Thermal Protection |
Yes |
| Over-Load Protection |
Yes |
| Short Circuit Output Protection |
Yes |
| Voltage Input Protection |
Yes (9.5 – 16V) |
| Body Color / Finish |
Black / Anodizing |
Extra Features
| Feature |
Availability |
| 2Ch/4Ch Input Selector |
Yes |
| Waterproof Rating |
IPX7 |
| UV / Salt Fog Protection |
Yes |
| Power Direct Harness Design |
Yes |
| Surface Mount Component Technology |
Yes |
| Marine Grade Fuse Holder |
Yes |
Measurements
| Measurement |
Value |
| Overall Length |
10″ / 253mm |
| Overall Width |
4.5″ / 116mm |
| Overall Height |
1.9″ / 48.5mm |
| Heatsink Length |
8.5″ / 216mm |
| Gross Single Unit Weight |
1.8kg |
Product Overview
Waterproof By Standard
The NVY-IPX7.4 is IPX7 certified. That means submersion protection, sealed internals, and no shortcuts. Designed to handle real exposure while maintaining NVY-Grade clarity and balance, this amplifier performs wherever it’s placed.
Dialed In Precision
With variable gain, crossover control, and 4-channel flexibility: you get the chance to shape your sound around your environment, speakers, and music.
Integrate Easily
Pre-terminated harnessing and a compact sealed chassis makes install easy across all marine and powersport applications.
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