Specifications

Page 47
CE-Series Amps with an Attitude!
Page 46
CE-Series Amps with an Attitude!
Reference Manual
Reference Manual
Signal to Noise Ratio,
A-Weighted:
Better than 105 dB below rated 1-kHz power;
20 Hz to 20 kHz:
Better than 100 dB below rated 1-kHz power.
Total Harmonic Distortion (THD): 0.5% or less true THD from 20
Hz to 20 kHz.
Intermodulation Distortion (IMD): (60 Hz and 7 kHz at 4:1) Less
than 0.1% at rated power to 35 dB below rated power at 8 ohms.
Damping Factor: Better than 400 from 10 Hz to 400 Hz.
Crosstalk: Better than 55 dB below rated power, 20 Hz to 20 kHz.
Common Mode Rejection (CMR): Better than 70 dB from 20 Hz
to 1 kHz.
DC Output Offset (Shorted Input): ±10 mV.
Controls and Connectors
Level: A detented rotary level control for each channel located on
the front panel.
Power: An on/off rocker switch located on the front panel.
Mode: A two-position switch located on the back panel below the
input connectors which, when turned to stereo, operates the am-
plifier as two independent channels. When “Bridge-Mono” mode
is selected, the amplifier bridges the two output channels for twice
the output voltage.
Reset: A front-panel push button used to reset the circuit breaker
that protects the power supply.
Sensitivity: A two-position switch located on the back panel next
to the Mode switch. Switchable between 1.4 volts for full output
into an 8-ohm load (default setting), or a fixed voltage gain of 26
dB. 0.775-volt sensitivity available as a Service Option.
Fault Jack: A back-panel RJ-11 jack that may be remotely moni-
tored to signal amplifier Fault condition. An LED or other signalling
device (not supplied) may be used.
Indicators
( All Located on the Front Panel)
Signal: A green LED for each channel which flashes when a very
low-level signal (>–40 dBm) is present at input. May be used for
troubleshooting cable runs.
Clip: A red LED for each channel which turns on when distortion
becomes audible in the amplifier output.
Fault: Normally off, this red indicator will blink under five different
conditions:
1. When the amplifier is first powered up, until the unit is ready
for operation.
2. If the heatsinks reach a temperature above normal working
limits.
3. If the transformer thermal protection circuit is activated.
4. If amplifier output wires develop a short-circuit.
5. Should the amplifier output stage become non-operational.
This circuit may be monitored remotely by plugging a simple
switching circuit using an LED or other signaling device into the
back-panel RJ-11 (Fault) jack. Under some conditions, the output
of the amplifier will be muted.
Power: A green LED that turns on when the amplifier has been
turned on and has power.
Input/Output
Input Connector (standard module): One Neutrik
®
Combo con-
nector for each channel which features a balanced ¼-inch (6.35-
mm) phone jack and a 3-pin female XLR connector, in parallel
with a barrier strip termination.
Input Stage: Input is electronically balanced and employs preci-
sion 1% resistors.
Input Impedance: Nominally 20 k ohms, balanced. Nominally 10
k ohms, unbalanced.
Input Sensitivity: 1.4 volts for standard 1-kHz power, or fixed 26-
dB gain. 0.775-volt sensitivity available as a Service Option.
Output Connectors: Two Neutrik
®
Speakon
®
NL4MP (mates with
NL4FC) output connectors. Optional 5-way binding post or barrier
strip outputs (in parallel with Speakon
®
connectors) are available
as a Service Option.
DC Output Offset: ±10 millivolts.
Output Signal,
Stereo:
Unbalanced, two-channel;