Crown 2, 3, 1 manual Specifications, Performance, Power, Crosstalk

4 Specifications

All specifications apply to units in Stereo mode with 8-ohm loads and an input sensitivity of 26 dB unless otherwise specified.

Standard 1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.1% THD+noise.

Full Bandwidth Power: refers to maximum average power in watts from 20 Hz to 20 kHz with 0.1% THD+ noise.

120 VAC, 60 Hz Units: refers to amplifiers with dedicated trans- formers for 120 VAC, 60 Hz power mains.

Performance

Frequency Response: ±0.1 dB from 20 Hz to 20 kHz at 1 watt.

Phase Response: ±10 degrees from 10 Hz to 20 kHz at 1 watt.

Signal-to-Noise:A-weighted, better than 105 dB be- low full bandwidth power. Better than 100 dB below full bandwidth power from 20 Hz to 20 kHz.

Total Harmonic Distortion (THD): Less than 0.05% at full bandwidth power from 20 Hz to 1 kHz increas- ing linearly to 0.1% at 20 kHz.

Intermodulation Distortion (IMD): (60 Hz and 7 kHz 4:1) Less than 0.05% from less than 158 milliwatts to full bandwidth power.

Damping Factor: Greater than 1,000 from 10 Hz to 400 Hz.

Crosstalk

Power Base-1: Greater than 75 dB below full band- width power from 50 Hz to 2 kHz, rising linearly to greater than 60 dB at 20 kHz.

Power Base-2 : Greater than 90 dB below full band- width power from 50 Hz to 2 kHz, rising linearly to greater than 66 dB at 20 kHz.

Power Base-3 : Greater than 90 dB below full band- width power from 50 Hz to 4 kHz, rising linearly to greater than 70 dB at 20 kHz.

Common Mode Rejection (CMR): Better than 70 dB below rated full bandwidth power from 20 Hz to 1 kHz falling linearly to better than 50 dB at 20 kHz.

Controlled Slew Rate: Greater than 13 volts/ms.

Voltage Gain: 20:1 ±3% or 26 dB ±0.25 dB at the maxi- mum level setting (Input Sensitivity switch set to its 26 dB position).

Power Base-1: 51:1 ±12% or 34.3 dB ±1 dB at 0.775 volt sensitivity; 28:1 ±12% or 29.1 dB ±1 dB at 1.4 volt sensitivity.

Power Base-2 : 64:1 ±12% or 36.2 dB ±1 dB at 0.775 volt sensitivity; 35:1 ±12% or 31.0 dB ±1 dB at 1.4 volt sensitivity.

Power Base-3: 83:1 ±12% or 38.4 dB ±1 dB at 0.775 volt sensitivity; 46:1 ±12% or 33.3 dB ±1 dB at 1.4 volt sensitivity.

Power

Output Power: The following specifications are guaran- teed minimums for standard 1 kHz power. For more infor- mation, see the power matrices in Figures 4.1 through 4.6 (maximum average power @ 0.1% THD + N).

Power Base-1

Stereo mode (both channels driven):

240watts into 4 ohms.

200watts into 8 ohms.

Bridge-Mono mode:

455watts into 8 ohms.

395watts into 16 ohms.

Parallel-Mono mode:

455watts into 2 ohms.

400watts into 4 ohms.

Power Base-2

Stereo mode (both channels driven):

460watts into 4 ohms.

325watts into 8 ohms.

Bridge-Mono mode:

910watts into 8 ohms.

660watts into 16 ohms.

Parallel-Mono mode:

920watts into 2 ohms.

655watts into 4 ohms.

Power Base-3

Stereo mode (both channels driven):

760watts into 4 ohms.

540watts into 8 ohms.

Bridge-Mono mode:

1525 watts into 8 ohms.

1090 watts into 16 ohms.

Parallel-Mono mode:

1530 watts into 2 ohms.

1080 watts into 4 ohms.

Load Impedance: Safe with all types of loads. Rated for 4 to 8 ohms in Stereo, 8 to 16 ohms in Bridge- Mono and 2 to 4 ohms in Parallel-Mono mode.