Description
Description
The ARC Audio Copper CU4.2 is a two-channel Class A/B reference amplifier designed for high-output front-stage, midbass, specialty-driver, or bridged mono applications. It delivers 225 watts RMS per channel into 4 ohms, 350 watts RMS per channel into 2 ohms, or 700 watts RMS when bridged into a 4-ohm load.
The wide 10 Hz–75 kHz frequency response allows the CU4.2 to operate as a full-range amplifier in sound-quality systems while retaining the current capability needed for demanding speakers. Its selectable input configuration and bypassable front end allow the amplifier to be used with its onboard signal controls or connected to an external DSP for a direct, processor-controlled system layout.
An adjustable crossover range from 55 Hz to 5.5 kHz supports full-range, high-frequency, midrange, and midbass system assignments. The CU4.2 does not include a built-in DSP.
Specifications
| Series | Copper Series |
|---|---|
| Amplifier Type | 2-channel Class A/B reference amplifier |
| Rated Power at 4 Ohms | 225 watts RMS × 2 |
| Rated Power at 2 Ohms | 350 watts RMS × 2 |
| Bridged Power at 4 Ohms | 700 watts RMS × 1 |
| Frequency Response | 10 Hz–75 kHz |
| Crossover Range | 55 Hz–5.5 kHz |
| Selectable Input Configuration | Yes |
| Bypassable Front End | Yes |
| Built-In DSP | No |
| Dimensions | 11 × 8.65 × 2.65 inches |
Features
- Two-channel Class A/B reference-amplifier design
- High-current stereo operation into 4-ohm and 2-ohm loads
- Bridgeable for a 700-watt 4-ohm mono configuration
- Wide-bandwidth 10 Hz–75 kHz response
- Selectable input configuration
- Bypassable front end for external-DSP systems
- Adjustable crossover section covering 55 Hz–5.5 kHz
- Suitable for full-range speakers, midbass drivers, specialty drivers, or bridged low-frequency use
- No internal DSP included