DS18 G1800.4D GEN-X Full-Range Class D 4-Channel Amplifier 1800 Watts
Key features
- Amplifier channels: 4
- RMS per channel at 4 ohms: 150 W
- RMS per channel at 2 ohms: 230 W
- Frequency response: 20 Hz–20 kHz
- Low-level input range: 0.25–6 V
- Selectable crossover: LPF / Flat / HPF
DS18 G1800.4D GEN-X Full-Range Class D 4-Channel Amplifier 1800 Watts is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Build a four-speaker car-audio system around the DS18 G1800.4D GEN-X, a four-channel full-range Class D amplifier with selectable crossover settings. Its 4-ohm, 2-ohm, and bridged power ratings give you options for planning a system around your speakers.
Key Features & Benefits
- Four full-range channels: Power front and rear speakers from one amplifier.
- Flexible power configurations: Choose from the listed 4-ohm, 2-ohm, or bridged ratings to suit your system layout.
- Selectable crossover modes: Set channels to LPF, FLAT, or HPF, with a crossover range of 50–250 Hz.
- High-level input compatibility: Integrate a signal from your radio unit.
- Status and protection features: Protection, Clipping, and Power Indicator LEDs show operating status and limit conditions.
- Compact chassis with cooling fan: The matte-black amplifier measures 12.25" L x 6.25" W x 3.25" H and includes a cooling fan.
Technical Specifications
| Specification | Details |
|---|---|
| Product | DS18 G1800.4D GEN-X full-range Class D 4-channel amplifier |
| Peak power | 1800W |
| RMS power | 4 x 150W @ 4Ω; 4 x 230W @ 2Ω |
| Bridged power | 2 x 430W @ 4Ω |
| Frequency response | 20Hz–20kHz |
| Low-pass filter | 50–250 Hz |
| High-pass filter | 50–250 Hz |
| Crossover selection | LPF/FLAT/HPF |
| X-Over range | 50–250 Hz |
| Input compatibility | High-level input |
| Indicators | Protection, Clipping, and Power Indicator LEDs |
| Protection | Short circuit, thermal, and voltage protection |
| Efficiency | 81% at 4Ω |
| Damping factor | 78 |
| THD | 0.01% |
| Power input | 4GA |
| Fuse rating | 80A |
| Speaker outputs | 12GA |
| Operation | 15V |
| Finish | Matte black |
| Dimensions | 12.25" L x 6.25" W x 3.25" H |
| Cooling | Cooling fan included |
| Construction feature | Surface mount component technology |
Why Choose This Product?
The G1800.4D combines four full-range channels with selectable crossover modes, giving you control over how the amplifier is configured for your speakers. Its listed RMS and bridged ratings make it easier to compare possible system layouts before you build.
Protection circuitry and status LEDs add useful feedback during operation, while the included cooling fan and compact dimensions suit installations where amplifier space matters.
Installation & Compatibility Notes
Plan your installation around the amplifier’s 12.25" L x 6.25" W x 3.25" H dimensions, 4GA power input, 80A fuse rating, and 12GA speaker outputs. The listed operating specification is 15V.
Check your speaker impedance and wiring plan against the amplifier’s stated 4Ω, 2Ω, and bridged 4Ω ratings. High-level input compatibility supports connection to a radio-unit signal.
Frequently Asked Questions
What does the 1800W rating mean?
1800W is the amplifier’s peak power rating. Its listed RMS ratings are 4 x 150W @ 4Ω and 4 x 230W @ 2Ω.
Can the G1800.4D be bridged?
Yes. Its bridged power rating is 2 x 430W @ 4Ω.
What crossover settings are available?
The amplifier offers selectable LPF, FLAT, and HPF modes, with low-pass and high-pass filter ranges of 50–250 Hz.
Can I connect it to a radio-unit signal?
It has high-level input compatibility for connection to a radio-unit signal.
Explore More
Shop DS18 products at 12 Volt Outlet. Want to learn more about DS18? Explore our DS18 brand profile.





