Specifications
INSTALLED
Protection Systems
Thermal Level Control (TLC): If an amplifier chan-
nel starts to overheat, the TLC circuit will engage
that channel’s input compressor. By compress-
ing the input, the amplifier will not generate as
much heat and will have a chance to cool down.
The degree of compression is proportional to the
amount of overheating. If the channel becomes too
hot for safe operation even after full TLC limiting,
the channel will shut off, and the Thermal Indicator
for that channel will flash brightly to alert the user
that a state of thermal stress or overload has cause
the channel to shut down.
FIT (Fault Isolation Topology): Isolates faults within
affected channels.
Fault: If an amplifier channel requires service, the
corresponding Fault indicator will illuminate to alert
the user of this condition. If this occurs, return the
amplifier to the Crown factory or to an authorized
Crown service center.
AC Under-/Over-Voltage Protection: If the AC line
voltage varies out of an acceptable range, the ampli-
fier’s power supply turns off and the blue Power
LED flashes. The amplifier will turn back on when
the AC line voltage returns to safe operating levels.
Models
Under-Voltage
Limit
Over-Voltage
Limit
100VAC 90VAC 110VAC
120 VAC units 108VAC 132VAC
220V/230V/240V
units
198VAC 264VAC
Power Fuse: A fuse protects the amplifier from
excessive AC current draw.
Inrush Limiting: A soft-start circuit in the power
supply minimizes the amplifier’s current draw
during power-on.
Regulatory Certifications
` SPECIFICATIONS
Frequency Response (at 1 watt, 20 Hz - 20 kHz):
<0.5 dB.
Signal to Noise Ratio below rated power (20 Hz to
20 kHz): 110 dB A-weighted.
Total Harmonic Distortion (THD) at 1 watt, from
20 Hz to 20 kHz: < 0.05%.
Intermodulation Distortion (IMD) < 0.05% (typical).
Crosstalk (below rated power, 20 Hz to 1 kHz): >
70 dB.
Common Mode Rejection (CMR) (20 Hz to 1 kHz):
>70 dB.
DC Output Offset (shorted input): < ±5 mV.
Input Impedance (nominal): 20 kilohms balanced,
10 kilohms unbalanced.
Maximum Input Level (before input compression):
+ 20 dBu.
Voltage Gain (at maximum level setting), 1.4V
sensitivity, 4/8 Ohm Operation: 20:1 (26 dB);
AC Line Voltage and Frequency Configurations
Available (±10%): 120V/60 Hz, 220/230/240V/50 Hz.
Power Draw at Idle (120VAC mains, all channels
in 4/8 ohm mode): 5W.
Cooling: Fanless convention cooled
Dimensions: 19 in. (48.3 cm) W x 1.75 in. (4.4
cm) H x 14.25 in. (36.2 cm) D. (This applies to all
models)
Weight (Net, Shipping): 10 lb (4.5 kg), 15 lb (6.8
kg). (This applies to all models)
Front Panel Controls and Indicators
Ready Indicator: Green LED, one per channel,
illuminates when the channel is initialized and ready
to produce audio output.
Signal Indicator: Green LED, one per channel,
illuminates to indicate the presence of analog input
signals above –40 dBu.
Clip Indicator: Red LED, one per channel, illumi-
nates when the THD of the channel’s output signal
rises to a level typically considered as the onset of
audible clipping. The Clip Indicator also will illumi-
nate during Thermal Level Control (TLC) or input
overload.
Crown’s CT DriveCore Series offers wide flexibility for a wide range of installed sound
applications. These amplifiers offer independent selection of high- and low-impedance
operation for each channel pair, making these amps ideal for multi-zone installations.
Thermal Indicator: Red LED, one per channel,
flashes when thermal stress.
Fault Indicator: Red LED, one per channel, flashes
when a fault condition has occurred in the channel.
Power Indicator: Blue LED indicates amplifier has
been turned on and AC power is available. Indica-
tor also flashes if the amplifier shuts off due to an
under-/over-voltage condition on the AC mains.
Power Switch: Amplifier is on when the switch is
in the IN position. Indicator flashes if the amplifier
shuts off due to an under/over voltage condition on
the AC mains or if the amplifier is in DEEP SLEEP
mode and the power button is pushed.
Back Panel Controls and Connectors
AC Power Cord Connector: IEC inlet, type 320;
100/120VAC units: 15A;
220/230/240VAC units: 10A.
Voltage is indicated above IEC inlet.
Output Connectors: 8-PIN Phoenix Connectors for
every four channels.
Input Connectors: Removable Phoenix-style barrier
connectors for balanced input.
High-Pass Filter: A fixed 70-Hz high-pass filter
settings. The high-pass filter can be set by using the
DIP switch located on the back panel.
Auto-Standby: After 30 minutes of idle, amp will go
into Standby. Amplifier will come out of Standby
once signal is recieved.
Green Power:
Crown's most efficient mode of
operation. The power consumption of the ampli-
fier will only match the input load. This means
that the amplifier will operate at maximum effi-
ciency at all times.
Input/Output Switches:
The ampliefier can be
configured so that input signals can be routed to
multiple outputs.
LifeSafety: Amplifier will produce a 2Hz "heart
beat" pulse on a 12VDC signal indicate amplifier is
operationg within non-fault condition.
Options
XFMR 4/8: This is a rack-mountable transformer
that allows 100V/70V output from the amplifier, and
allows other amplifiers without direct constant volt-
age output to be easily integrated into distributed
systems.
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Harman Pro Group | 2012
Section:
04
Harman Pro Group | 2012
Section:
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