Description
Description
The DC Audio 3.5k is a 3500-watt mono block amplifier designed for serious subwoofer builds, with linkable operation that can scale to 11,000 watts when paired with a second unit. Built for high current, it handles low-impedance loads and aggressive bass setups without compromising reliability.
- 1 ohm stability: Ready for very low impedance speaker loads, enabling high-current delivery to demanding subwoofers without clipping or overheating.
- Linkable: Master/Slave capable and designed to be paired, delivering up to 11,000 watts from a pair for extra headroom in large bass installations.
- 24 dB/Octave crossover: Low Pass 35 Hz–250 Hz to precisely confine bass energy to the sub stage and match enclosure tuning.
- Subsonic filter: 10 Hz–50 Hz to suppress ultra-low frequencies that can waste amp power and cause subwoofer overexcursion.
- Bass boost: 0–9 dB at 45 Hz to add musical low-end emphasis or compensate for listening position without external EQ.
- RCA pass-thru: Allows signal to pass through to additional amplifiers, simplifying multi-amp installations.
- Remote control: Wired remote included for bass level adjustments from the driver's seat during tuning or daily use.
- Clipping indicator: Visual cue to help set gains and prevent distortion, preserving subwoofer and amp life.
- Power and grounding: 1/0 AWG power and ground inputs and 8 AWG speaker terminals provide robust wiring options for high‑current builds.
- Master/Slave: Supports a coordinated paired setup for enhanced system integration and power scaling.
In a high‑end subwoofer system, this amplifier excels as a dedicated mono block for a single high‑power sub or as part of a linked pair to achieve extreme output. Its comprehensive filtering, bass shaping, remote control, and clear protection indicators help you dial in deep, clean bass while protecting drivers and electronics in daily driving and competition scenarios.
| DC Amp Model: | 3.5k |
|---|---|
| Input Sensitivity | 6V~0.2V |
| Frequency Response | 20Hz~250Hz |
| 24dB / Octave Crossover | YES |
| Low Pass | 35Hz ~ 250Hz |
| Subsonic Filter | 10Hz-50hz |
| Bass Boost @45hz | 0 ~ 9db |
| Phase Shift | 0 ~ 180 |
| Remote Control | Yes |
| Clip Indicator | Yes |
| Signal to Noise Ratio | dB100 |
| Damping Factor | 200< |
| THD @ 4ohms | Less than 0.1% |
| Fuse Rating | External 350 amp |
| LED Status Lights | Power and Protect |
| Master/Slave | YES |
| Heatsink Length | 21.26"/540mm |
| Heatsink Width | 9.38"/238mm |
| Heatsink Height | 2.35"/59.6mm |





