FRP Compact 4-Channel Full-Range Class-D Amplifier | 4000W RMS
Product Overview DS18 FRP-4K4 Compact 4-Channel Full-Range Class-D Amplifier | 4000W RMS FULL RANGE POWER IS BACK!...
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Product Overview
DS18 FRP-4K4
Compact 4-Channel Full-Range Class-D Amplifier | 4000W RMS
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!
Key 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
Specifications
| 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 | 97% |
| Damping Factor | 90 |
| Input Impedance | 10KΩ |
| Channel Separation | 50dB |
| Total Harmonic Distortion (THD) | 0.5% |
| 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 |
| 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 |
Manuals & Documents
Shipping
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Important Notes
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.