Crown CDi 4000 Two-Channel 70V/140V Installation Power Amplifier
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Description
The CDi 4000 is a two-channel installation amplifier rated at 1200W per channel into 4 ohms. It drives 2, 4 and 8 ohm loads as well as 70V and 140V distributed speaker lines, and it runs in dual or bridge-mono mode.
Onboard DSP covers crossovers, EQ filters, delay and output limiting, with up to 20 user presets, all set up from the front-panel LCD. Crown builds the CDi series for installed sound, and the CDi 1000, 2000, 4000 and 6000 share the same feature set at different power ratings.
Features
- Rated for 2, 4 and 8 ohm loads and 70V and 140V outputs
- Dual and bridge-mono modes
- Onboard DSP with crossovers, EQ filters, delay and output limiting
- Up to 20 user-defined DSP presets
- Backlit front-panel LCD for setup
- Switch-mode universal power supply
- Protection against shorted outputs, open circuits, DC, mismatched loads, overheating, high-frequency overloads and internal faults
- Lightweight steel chassis for rack mounting
Specifications
- Channels: 2
- Output power per channel, both channels driven: 1600W at 2 ohms, 1200W at 4 ohms, 650W at 8 ohms, 1000W at 70V
- Bridge mono output power: 3200W at 4 ohms, 2000W at 8 ohms, 2000W at 140V
- Power rating: Minimum guaranteed power at 0.5% THD, and at 1% THD for the 2 ohm and 4 ohm bridge figures
- Load ratings: 2, 4 and 8 ohms; 70V and 140V
- Input sensitivity: 1.4V for full rated power at 8 ohms
- Signal-to-noise ratio: 100 dB (A-weighted), below rated 1 kHz power at 8 ohms
- THD: Less than 0.5%
- Frequency response: +0 dB, -1 dB, 20 Hz to 20 kHz (at 1W)
- Damping factor: More than 500 (20 Hz to 400 Hz)
- Crosstalk: More than 70 dB (20 Hz to 1 kHz)
- Input impedance: 20k ohms balanced, 10k ohms unbalanced
- AC power: 15A IEC connector
- Dimensions (W x H x D): 19 x 3.5 x 12.25 in. (48.3 x 8.9 x 31.1 cm), depth behind the mounting surface
- Weight: 19 lb (8.6 kg)
In the Box
- CDi 4000 amplifier
- AC power cord
- Non-touch cover for the output terminals
- Attenuator security covers