Description
The ARC Audio X2 1100.5 is a five-channel Class-D amplifier designed to power a complete speaker and subwoofer system from one chassis. It combines four full-range channels based on the X2 600.4 platform with a dedicated low-frequency fifth channel for subwoofer operation.
Channels 1 through 4 deliver 150 watts RMS each into either 4-ohm or 2-ohm loads through ARC Audio's impedance-switching output design. The full-range channel pairs can be bridged for higher-power two- or three-channel configurations. The dedicated subwoofer channel produces 275 watts RMS into 4 ohms or 500 watts RMS into 2 ohms, allowing the amplifier to operate a front stage, rear speakers or active drivers, and a subwoofer without requiring separate amplifier chassis.
Adjustable high-pass, low-pass, and band-pass crossover functions support passive, hybrid, and bi-amplified system layouts. Balanced differential inputs simplify integration with factory and aftermarket source units. The Level 2 cosmetic package uses a brushed silver hairline aluminum top, an illuminated rotatable acrylic badge, and integrated diagnostic indicators.
Specifications
| Amplifier class | Class D |
|---|---|
| Channels | 5: four full-range channels plus one subwoofer channel |
| Full-range power at 4 ohms | 150 watts RMS × 4 |
| Full-range power at 2 ohms | 150 watts RMS × 4 |
| Full-range bridged power at 4 ohms | 300 watts RMS × 2 |
| Subwoofer power at 4 ohms | 275 watts RMS × 1 |
| Subwoofer power at 2 ohms | 500 watts RMS × 1 |
| Full-range frequency response | 20 Hz–20 kHz |
| Subwoofer channel frequency response | 20 Hz–230 Hz |
| Channels 1/2 high-pass crossover | 50 Hz–500 Hz at 12 dB/octave |
| Channels 1/2 low-pass crossover | 50 Hz–500 Hz or 500 Hz–5 kHz |
| Channels 3/4 high-pass crossover | 50 Hz–500 Hz at 12 dB/octave |
| Subwoofer low-pass crossover | 30 Hz–230 Hz at 12 dB/octave |
| Subwoofer 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 | 12.42 × 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
- All-in-one five-channel Class-D system amplifier.
- Four full-range channels plus a dedicated subwoofer channel.
- Impedance-switching full-range output stage with equal power at 2 and 4 ohms.
- Bridgeable full-range channel pairs.
- High-pass, low-pass, and band-pass crossover capability.
- Suitable for passive, hybrid, bi-amplified, and DSP-assisted layouts.
- 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 subwoofer level control included.
- Microprocessor-controlled diagnostic fault reporting.
- Compact single-chassis system design.
- Brushed silver hairline aluminum top panel.
- Illuminated rotatable acrylic badge and integrated diagnostic indicators.