We are a DS18 authorized dealer so you get up-to-date, fully warrantied products.
General Features:
- RMS Power: 4 x 400W @ 4Ω, 4 x 700W @ 2Ω, 4 x 1000W @ 1Ω
- Bridged Power: 2 x 1200W @ 4Ω | 2 x 1800W @ 2Ω
- Selectable HPF / LPF / Full crossover
- Bass Boost: 0–12dB at 50Hz
- Smart cooling fan + 4-layer PCB
- Power, Protect, Clip LED indicators
FULL RANGE POWER IS BACK! AND NOW IN 4-CHANNELS!
The FRP-4K4 is DS18’s most powerful compact 4-channel amplifier yet, built to deliver up to 4000W of RMS power across your entire system!
Built for Massive Output
The FRP-4K4 delivers massive output: 4 x 400W at 4 ohm, 4 x 700W at 2 ohm, 4 x 1000W at 1 ohm, 2 x 1200W bridged at 4 ohm, or 2 x 1800W bridged at 2 ohm. Plenty of clean, consistent power for your full-range or pro audio builds.
Full Audio Control
Dial in your sound with fully adjustable high-pass, low-pass, and full-range crossovers, plus a 12dB bass boost at 50Hz to fine-tune your low end. Smart Cooling keeps temps down while built-in protection circuits and 0GA power terminals make setup and system management simple—even when pushed to the limit.
Get DS18’s FRP-4K4 for clean full-range power without wasting space!
| Brand | DS18 |
| RMS Power @ 4 ohms | 4 x 400W |
| RMS Power @ 2 ohms | 4 x 700W |
| RMS Power @ 1 ohm | 4 x 1000W |
| RMS Power @ 4 ohm Bridge | 2 x 1200W |
| RMS Power @ 2 ohm Bridge | 2 x 1800W |
| Frequency Response | 10Hz-20KHz |
| Signal to Noise Ratio | 90dB |
| Efficiency @ 4ohm | 0.97 |
| Damping Factor | 90 |
| Input Impedance | 10K? |
| Channel Separation | 50dB |
| Total Harmonic Distortion (THD) | 0.005 |
| Low Level Input Range | 400mv-6V |
| High Level Input | No |
| Selectable X-Over | Yes, HPF/FULL/LPF |
| X-Over Filter Range | 10Hz-2KHz |
| Bass Boost Range | 0-12dB |
| Bass Boost Frequency | 50Hz |
| Phase Selector | No |
| Amplifier Class | Digital |
| Amplifier Type | Full-Range Multi-Channel |
| Number of Channels | 4CH |
| Minimum Impedance | 1ohm St / 2ohm Bridge |
| Led Indicator | Power / Protect / Clipping |
| Power Input Terminal Size | 0GA |
| Fuse Size (Recommended) | 500A |
| Cooling Fan | Yes (Smart Cooling x 1) |
| Voltmeter | No |
| Thermal Protection | Yes |
| Over-Load Protection | Yes |
| DC Output Protection | Yes |
| Short Circuit Output Protection | Yes |
| Voltage Input Protection | Yes |
| Clipping Protection | Yes |
| Body Color / Finish | Blue / Red / Titanium |
| Compact Size to Easy Installation for Any Applications | Yes |
| Stable/Reliable Four Layers Traces PCB Design | Yes |
| Surface Mount Component Technology | Yes |
| Quality Control Verification using Audio Precision Instruments | Yes |
| Tiffany RCA Terminal | Yes |
| LED Clip Indicator | Yes |
| Metal Knobs with Click Steps | Yes |
| Input Selector | Yes (2ch/4ch) |
| Remote Level Control with Clip Indicator | No |
| Remote Level Control with Clip Indicator and Voltmeter | No |
| Overall Length | 13.4" / 340mm |
| Overall Width | 5.5" / 140mm |
| Overall Height | 2.4" / 63.5mm |
| Heatsink Length | 12" / 307mm |
| Gross Single Unit Weight | 3.2kg |
| Parts Warranty | 1 Year |
| Labor Warranty | 1 Year |
