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DS18 NVY-T800.4D 4-Channel Marine Waterproof Amplifier
Class D Full-Range @4 Ohm 200 Watts x 4 RMS
Introducing the NVY-T800.4D: a versatile 4-channel amplifier designed for high quality audio reproduction and unbreakable durability.
The NVY-T800.4D was designed to withstand the harshest elements: it’s IP67 waterproof rating and UV/SALT/Fog Protection, paired with it’s surface mount component technology and direct harness design allows this amplifier to be installed anywhere easily without sacrificing space!
The NVY-T800.4D also features a 2CH/4CH Input Selector so you can use 2 RCAs or 4 depending on your setup.
It’s wide range of protection features, including thermal protection, over-load protection, short circuit output protection, and voltage input protection reinforced by power, protection, and clipping indicators ensures the safety and longevity of the NVY-T800.4D.
Equipped with selectable HPF, LPF, and FULL crossover filters; the NVY-T800.4D allows you to customize your sound to your liking.
This stereo full range amplifier covers ranges from 20Hz-20KHz and has a signal-to-noise ratio of >80dB for crisp and clear audio with minimal distortion.
With a peak power output of 2400W and RMS power of 4 x 200W @ 4 ohm, 4 x 300W @ 2 ohm, and 2 x 600W @ 4 ohm bridge, the NVY-T800.4D is perfect for powering any speakers in your marine audio system.
Be prepared for everything with the NVY-T800.4D!
Highlights
- High Power Output
- 2CH / 4CH Input Selector
- Stereo Full Range Amplifier
- Customizable Sound With Selectable Crossover Filters
- High Quality Protection Features
- UV/SALT/FOG Protection
- Direct Harness Design With 8Ga Marine Grade OFC Tinned Wires and Waterproof Fuse Holder
- Latest Digital Amplifier Design with SMC Technology
- Durable design suitable for use in harsh environments
Great For
- Marine Audio
- Powersports Audio





Technical Details
| SPECIFICATIONS | |
| POWER | |
| Total Watts (Peak) | 2400W |
| RMS Power @ 4 ohm | 4 x 200W |
| RMS Power @ 2 ohm | 4 x 300W |
| RMS Power @ 4 ohm Bridge | 2 x 600W |
| AUDIO | |
| Frequency Response | 20Hz-20KHz |
| Signal to Noise Ratio | >80dB |
| Efficiency @ 4ohm | 0.85 |
| Damping Factor | >100 |
| Input Impedance | 20Kohms |
| Channel Separation | >55dB |
| Total Harmonic Distortion (THD) | 0.0005 |
| Low Level Input Range | 200mV-5V |
| Selectable X-Over | HPF/LPF/FLAT |
| X-Over Filter Range | 40Hz-3KHz |
| FEATURES | |
| Amplifier Class | Digital |
| Amplifier Type | Stereo Full Range |
| Number of Channels | 4 |
| Minimum Impedance | 2 Ohms (Stereo) / 4 Ohm (Bridge) |
| Led Indicator | Power / Protection / Clip |
| Power Input Terminal Size | 8GA Tinned OFC |
| Recommended Fuse Size | 80A |
| Thermal Protection | Yes (76.4°C) |
| Over-Load Protection | Yes |
| DC Output Protection | Yes |
| Short Circuit Output Protection | Yes |
| Voltage Input Protection | Yes |
| Clipping Protection | Yes |
| Body Color / Finish | Brushed Aluminum |
| MEASUREMENT | |
| Overall Length | 11.6" / 295mm |
| Overall Wide | 4.9" / 125mm |
| Overall Height | 1.8" / 47mm |
| Heatsink Length | 10.2" / 261mm |
| Gross Single Unit Weight | 2.86Kg |
Shipping
Free US shipping on orders over $200. Orders under $200 ship at the rate shown at checkout. Oversized items ship by freight; we confirm the quote with you first.
Shipping policyReturns
Return within 30 days of delivery. Opened items may carry an open-box fee of up to 30%, set by our QA team on inspection. Return shipping is paid by the customer.
Start a returnDamaged or wrong item?
Tell us within 3 days of delivery with photos and we'll make it right, with no fee.
Contact usDS18 warranty
This product is covered by the manufacturer's warranty. We help you with the claim from start to finish.
Warranty detailsSupport from real people
Setup questions, compatibility, firmware: chat with a specialist or email info@silarius.com, Monday to Friday, 8am to 4pm ET.
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