DS18 FRP-3.5K/BL FRP Compact Full-Range Class D 1-Channel Amplifier 3,500 Watts Rms @ 1-Ohm BLUE
Key features
- Amplifier channels: 1
- RMS output at 4 ohms: 1000.0 W
- RMS output at 2 ohms: 2000 W
- RMS output at 1 ohm: 3500 W
DS18 FRP-3.5K/BL FRP Compact Full-Range Class D 1-Channel Amplifier 3,500 Watts Rms @ 1-Ohm BLUE is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Build a high-power car audio system in less space with the DS18 FRP-3.5K/BL compact full-range Class D monoblock amplifier. It delivers 3,500W RMS at 1Ω, with a fixed band-pass crossover and a blue finish.
Key Features & Benefits
- High-power output: Choose from 1,000W RMS at 4Ω, 2,000W RMS at 2Ω, or 3,500W RMS at 1Ω to match your system’s speaker load.
- Full-range response: Its 10Hz–20kHz frequency response supports bass, mids, and highs.
- Built-in sound shaping: The fixed band-pass crossover and 0–12dB bass boost at 50Hz provide adjustment options for your system.
- Included tuning remote: The remote level control has a clip indicator, helping you monitor signal clipping while tuning.
- Cooling and protection: Dual smart cooling fans and multiple protection circuits support operation under demanding conditions.
- Compact construction: Tiffany RCA terminals and a compact body suit installations where space is limited.
Technical Specifications
| Specification | Details |
|---|---|
| Model | FRP-3.5K/BL |
| Amplifier type | Digital Class D, full-range monoblock |
| Channels | 1 |
| RMS power | 1,000W @ 4Ω; 2,000W @ 2Ω; 3,500W @ 1Ω |
| Burst power | 4,000W @ 1Ω |
| Frequency response | 10Hz–20kHz |
| THD | 0.5% |
| SNR | 83dB |
| Efficiency | 80.9% at 4Ω |
| Crossover | Fixed band-pass; HP 10Hz–2kHz; LP 40Hz–20kHz |
| Low-level input | 400mV–3.6V |
| High-level input | No selectable |
| Bass boost | 0–12dB at 50Hz |
| Indicators | Power, Protect, and Clipping LEDs |
| Protections | Thermal, Over-Load, DC Output, Short Circuit Output, Voltage Input, and Clipping |
| Cooling | Dual smart cooling fans |
| Construction | Protective PCB coating against moisture; bonded components for vibration protection; four-layer trace PCB design; surface-mount components |
| Terminals | Tiffany RCA terminals |
| Remote control | Remote level control with clip indicator included; voltmeter option available |
| Body colors | Blue, Red, or Titanium |
Why Choose This Product?
The FRP-3.5K/BL combines a compact format with 3,500W RMS output at 1Ω. Its full-range response and fixed band-pass settings support system setups aimed at bass, mids, or highs. The listed efficiency is 80.9% at 4Ω, and the dual fans help manage cooling during use.
Moisture-resistant PCB coating, vibration-protected bonded components, and multiple protection functions address common demands of a vehicle installation.
Installation & Compatibility Notes
Match the amplifier’s supported 1Ω, 2Ω, or 4Ω power ratings to your speaker load and system design. The low-level input range is 400mV–3.6V; the high-level input is listed as “No selectable.” Check your system’s signal connections and available installation space before purchase.
Frequently Asked Questions
How much RMS power does the DS18 FRP-3.5K/BL produce?
It is rated at 1,000W RMS at 4Ω, 2,000W RMS at 2Ω, and 3,500W RMS at 1Ω. Its listed burst rating is 4,000W at 1Ω.
What crossover and bass adjustments does it offer?
It has a fixed band-pass crossover with HP settings from 10Hz–2kHz and LP settings from 40Hz–20kHz. Bass boost adjusts from 0–12dB at 50Hz.
Does the amplifier include a remote control?
Yes. A remote level control with a clip indicator is included. A voltmeter option is available.
What input connections are listed?
The amplifier has Tiffany RCA terminals and a low-level input range of 400mV–3.6V. The high-level input is listed as “No selectable.”
What protection and status features does it have?
Power, Protect, and Clipping LEDs indicate operating status. Listed protections include thermal, overload, DC output, short circuit output, voltage input, and clipping.
Explore More
Want to learn more about DS18? Explore our DS18 brand profile.






