Description
The ARC Audio X2 1100.1 is a high-performance monoblock Class-D amplifier designed for subwoofer and midbass applications. Its frequency-limited output range directs the amplifier's power to low-frequency drivers rather than full-range speakers, supporting daily-driver systems, custom bass installations, and higher-output builds.
The X2 1100.1 produces 350 watts RMS into 4 ohms, 600 watts RMS into 2 ohms, and up to 1,100 watts RMS into 1 ohm. A dedicated master/slave strapping circuit allows two amplifiers to operate together with synchronized signal control and up to 2,200 watts of combined output for systems requiring greater low-frequency power.
Advanced power-supply filtering, Infineon output devices, and balanced differential inputs support efficient operation and integration with either aftermarket or factory source units. The Level 2 cosmetic package includes a brushed silver hairline aluminum top panel, an illuminated rotatable acrylic badge, and front diagnostic indicators.
Specifications
| Amplifier class | Mono Class D |
|---|---|
| Channels | 1 |
| Rated power at 4 ohms | 350 watts RMS × 1 |
| Rated power at 2 ohms | 600 watts RMS × 1 |
| Rated power at 1 ohm | 1,100 watts RMS × 1 |
| Strapped operation | Up to 2,200 watts combined with two amplifiers |
| Operating bandwidth | 10 Hz–230 Hz |
| Low-pass crossover | 30 Hz–230 Hz |
| Subsonic filter | 10 Hz–80 Hz |
| Bass boost | 0–12 dB, adjustable from 30–125 Hz |
| Remote level control | Included |
| Input sensitivity | 200 mV–3.5 V |
| Input stage | Balanced differential |
| Automatic turn-on | Signal detect, DC detect, or remote turn-on |
| Fusing | 3 × 30-amp ATC/ATO |
| Dimensions | 13.0 × 6.268 × 2.086 inches |
| Start/stop compatibility | Yes; operates below 8 volts |
| Cosmetic package | Level 2 with a brushed silver hairline aluminum top and illuminated badge |
Features
- High-output mono Class-D amplifier for subwoofer and midbass use.
- Stable operation down to 1 ohm.
- Master/slave strapping circuit for synchronized paired-amplifier operation.
- Advanced power-supply filtering.
- Infineon output devices.
- Low-pass crossover and adjustable subsonic filter.
- Variable-frequency bass boost.
- Balanced differential inputs for OEM and aftermarket integration.
- Speaker-level input compatibility through supplied RCA pigtails.
- Signal-sensing and DC-detect automatic turn-on.
- Remote bass level control included.
- Microprocessor-controlled diagnostic fault reporting.
- Brushed silver hairline aluminum top panel.
- Illuminated rotatable acrylic badge and front diagnostic indicators.

