Specifications

Page 45
CE-Series Amps with an Attitude!
Page 44
CE-Series Amps with an Attitude!
Reference Manual
Reference Manual
A modular jack is mounted on the back panel (same type as
used on telephones). Pins 2 and 5 are connected to an opto-
isolator which is always in a low-resistance state whenever the
unit is on and happy. Should a fault be detected or should the
amplifier lose AC power, the opto-isolator will change to a high
resistance, allowing the user to remotely detect the status of
the amplifier.
The Signal Presence Indicators tap the signal chain just before
the level controls and prior to the power amplifier chain. They
are
not amplifier output indicators and should only be used to
indicate the presence of signal to the amplifier front end.
The Clip light is driven from the output of the compressor cir-
cuitry and lights to indicate the onset of audible distortion.
The Power LED is driven from the low-voltage supply.
A positive and negative regulator form the ±15-volt power sup-
plies. Add to that the main transformer, a full-wave bridge rec-
tifier, and high energy electrolytic to form the main power
supply. They are protected by the front-panel line circuit
breaker and controlled by the front-panel power switch.
And there my friends you have it, the guts of the CE-Series
from Crown!
7 Specifications
Note: All measurements relate to 120-volt, 60-Hz units in Ste-
reo mode with 8-ohm loads and an input sensitivity of 26-dB
gain at 1-kHz rated power unless otherwise specified. Specifi-
cations for units supplied outside the U.S.A. may vary slightly
at different AC voltages and frequencies.
Power
Output Power: (see Figure 7.1).
Load Impedance: Safe with all types of loads. Rated for 2, 4
and 8 ohms in Stereo mode, 4 and 8 ohms in Bridge-Mono
mode.
Voltage Gain to 1-kHz, 8-ohm rated output,
CE1000:
30.5-dB gain at 1.4-volt sensitivity;
26-dB gain at 2.34-volt sensitivity.
CE2000:
32.1-dB gain at 1.4-volt sensitivity;
26-dB gain at 2.83-volt sensitivity.
Required AC Mains: 50/60 Hz (North American units are 60
Hz only); 100-, 120- and 230-/240-VAC (±10%) units are avail-
able.
AC Line Current;
CE 1000:
100 Volts: 7.6 A;
120 Volts: 6.3 A;
230-240 Volts: 3.5 A;
CE 2000:
100 Volts: 11.4 A;
120 Volts: 9.5 A;
230-240 Volts: 5.0 A;
At Idle: All amps draw no more than 90 watts.
AC Line Connector: NEMA 5-15P (15 A).
Performance
Frequency Response: ±0.2 dB from 20 Hz to 25 kHz at 1 watt
(See Figure 7.2).
Phase Response: ±15 degrees from 20 Hz to 20 kHz at 1
watt.