Crown ct-1600 Guía De Referencia

Page 29

Com-Tech 200/400/800/1600  Power Amplifiers

Commercial
Audio
LL 32521C

®

Fire Protective
Signaling
S5206

®

Commercial
Audio
E106377

Approved for
THX Theatre
Systems

(CT-400 & 800)

The following specifications apply to all models in Dual mode
with 8 ohm loads and an input sensitivity of 26 dB unless
otherwise specified. In Fire Protective Signaling Applica-
tions, the specifications in Section 9 supersede several of
the specifications that follow.

Standard 1 kHz Power: 

This term refers to maximum average

power in watts at 1 kHz with 0.1% THD.

Full Bandwidth Power: 

This term refers to maximum average

power in watts from 20 Hz to 20 kHz with 0.1% THD.

120 VAC, 60 Hz Units: 

These North American units have

dedicated transformers for 120 VAC, 60 Hz power mains.

100/120 VAC Units: 

These units have two-tap transformers

that accept a 50 or 60 Hz AC line, and can be configured for
100 or 120 VAC mains.

220/240 VAC Units: 

These units have two-tap transformers

that accept a 50 or 60 Hz AC line, and can be configured for
220 or 240 VAC mains.

Frequency Response: 

±0.1 dB from 20 Hz to 20 kHz at

1 watt (see Figure 6.9).

Phase Response: 

±10 degrees from 10 Hz to 20 kHz

at 1 watt (see Figure 6.12).

Hum and Noise: 

A-weighted, 105 dB below full band-

width power; No weighting, 100 dB below full band-
width power.

Total Harmonic Distortion (THD): 

Less than 0.05% at

full bandwidth power from 20 Hz to 1 kHz increasing
linearly to less than 0.1% at 20 kHz.

Intermodulation Distortion (IMD):

  (60 Hz and 7 kHz

4:1) Less than 0.05% from less than 166 milliwatts to
full bandwidth power.

Damping Factor: 

Greater than 1000 from 10 Hz to

400 Hz (see Figure 6.10).

Crosstalk: 

See Figure 6.13.

Common Mode Rejection Ratio (CMRR): 

Better than

70 dB.

Slew Rate: 

Greater than 17 volts per microsecond.

Voltage Gain: 

(At the maximum level setting) 20:1 ±3%

or 26 dB ±0.25 dB. 90:1 ±12% or 39 dB ±1 dB with the
input sensitivity set to 0.775 volts for 70 volt output. The
following voltage gain specifications are for units with
the input sensitivity set to 0.775 volts for 8/4 ohm output:

Com-Tech 200: 38:1 ±12% or 32 dB ±1 dB.

Com-Tech 400: 55:1 ±12% or 35 dB ±1 dB.

Com-Tech 800: 64:1 ±12% or 36 dB ±1 dB.

Com-Tech 1600: 85:1 ±12% or 39 dB ±1 dB.

Output Power:

 

The following are guaranteed minimums

for standard 1 kHz power from 120 VAC, 60 Hz North
American units. For more information or specs on inter-
national units, see the power matrices that follow.

Com-Tech 200

Dual mode (with both channels driven):

150 watts into 4 ohms.
110 watts into 8 ohms.
110 watts with 70 volt output.

Bridge-Mono mode:

300 watts into 8 ohms.
220 watts into 16 ohms.
205 watts in 70 volt mode (140 volt output).

Parallel-Mono mode:

295 watts into 2 ohms.
215 watts into 4 ohms.
210 watts with 70 volt output.

Com-Tech 400

Dual mode (with both channels driven):

240 watts into 4 ohms.
220 watts into 8 ohms.
225 watts with 70 volt output.

Bridge-Mono mode:

475 watts into 8 ohms.
450 watts into 16 ohms.
455 watts in 70 volt mode (140 volt output).