Crown Audio CTs Series - Manual

C T s S E R I E S
B uilding on the foundation of the Com-Tech ®
Series, Crown’s CTs Series offers new fl ex-
ibility and value for installed sound applica-
tions. The Com-Tech Series were the fi rst to offer
independent selection of high- and low-impedance
operation for a specifi c channel, and CTs Series
amplifi ers continue that tradition, with power
levels and features carefully chosen to perfectly
integrate into fi xed install design requirements.
For added fl exibility, the CTs Series includes both
dual-channel and multi-channel models.
All models in the CTs Series feature Crown’s new
Switching Power Supply for lighter weight, and all
models are also compatible with the IQ System
® .
Multi-channel models accept new MC accessory
modules that provide enhanced control, monitor-
ing, and system integration.
The CTs multi-channel amps feature FIT (Fault Iso-
lation Topology), which isolates channel-specifi c
faults and prevents them from affecting remaining
channels. If a CTs multi-channel amp is powering
multiple zones, and a channel fails, the other zones
continue to operate.
In a profession where unplanned service calls
quickly wipe out profi ts, the CTs Series amplifi ers
are designed to be the most reliable amplifi ers you
can install.
For more details about the Crown ® CTs Series,
contact Crown Customer Service at 800-342-6939
or 574-294-8200. Also, visit the Crown Audio web-
site at www.crownaudio.com.
Specifi cations
Minimum Guaranteed Power: See power charts
below.
Frequency Response (at 1 watt, 20 Hz - 20 kHz):
±0.5 dB.
Phase Response (at 1 watt, 10 Hz - 20 kHz): ±35°.
Signal to Noise Ratio below rated power (20 Hz to
20 kHz): 100 dB unweighted.
Total Harmonic Distortion (THD) at 1 watt, from
20 Hz to 20 kHz: < 0.05%.
Intermodulation Distortion (IMD) 60 Hz and 7
kHz at 4:1, from 163 milliwatts to full bandwidth
power: < 0.05% (typical).
Damping Factor: 10 Hz to 400 Hz: >180.
Crosstalk (below rated power, 20 Hz to 1 kHz):
> 80 dB.
Common Mode Rejection (CMR) (20 Hz to 1 kHz):
> 50 dB.
DC Output Offset (Shorted input): < ±5 mV.
Input Impedance (nominal): 20 kilohms balanced,
10 kilohms unbalanced.
Maximum Input Level (before input compres-
sion): + 20 dBu.
Load Impedance (Note: Safe with all types of
loads):
Stereo: 4/8 and 25 ohms (70V)
Bridge Mono: 8/16 and 50 ohms (100V)
Voltage Gain (at maximum level setting), 1.4V
sensitivity,
4/8 Ohm Operation: 20:1 (26 dB);
70V Operation: 50:1 (34 dB)
100V Operation: 71.4:1 (37 dB)
Required AC Mains: 120V 60 Hz, 220/230/
240V/50 Hz.
Power Draw at Idle (120VAC mains, all channels
in 4/8 ohm mode): 58W.
Power Draw at Idle (120VAC mains, all channels
in 70V mode): 77W.
Cooling: Continuously variable speed forced air,
front-to-back airfl ow.
Dimensions (Width, Height, Depth):
CTs 4200: 19 in. (48.3 cm) W x 3.5 in. (8.9 cm)
H x 16.25 in. (41.3 cm) D.
CTs 8200: 19 in. (48.3 cm) W x 5.25 in. (13.3
cm) H x 16.25 in. (41.3 cm) D.
Features
• New Crown Switching Power Supply for
reduced weight.
• High power-density, with four channels (CTs
4200) or eight channels (CTs 8200) in a 3U
chassis.
• Selectable constant-voltage (70V/100V) or
low-impedance (4/8 ohm) operation for each
channel pair. (Channel pair must be operated
in Bridge mode for 100V output).
• FIT (Fault Isolation Topology) circuitry isolates
faults within affected channels.
• TLC protection circuitry protects the amplifi er
from excessive heat by subtly and dynamically
reducing the gain only when necessary to
reduce heat levels.
• Accepts new MC accessory modules that tailor
the amplifi er to suit specifi c applications. Mod-
ules available for remote VCA level control and
IQ System
® Control.
• 35-Hz High-Pass Filter is automatically
inserted when the channel pair is set for con-
stant-voltage operation (corner frequency may
be changed as a service option).
• Comprehensive array of indicators including
Power and Data, along with Bridge, Ready,
Signal, Clip, Thermal and Fault for each chan-
nel, provide accurate diagnostics.
• Blue Power Indicator fl ashes if the amplifi er
shuts off due to an under/over voltage condition
on the AC mains.
• Advanced protection circuitry guards against:
shorted outputs, open circuits, DC, mismatched
loads, general overheating, under-/over-volt-
age, high-frequency overloads and internal
faults.
• Proven Crown AB+B Multi-Mode ® output topol-
ogy.
• Continuously-variable fans optimize cooling effi -
ciency.
• Three Year, No-Fault, Fully Transferable
Warranty completely protects your investment
and guarantees its specifi cations.
• Crown’s advance-replacement Profi t Protec-
tion Plan provides quick, no-questions-asked
replacement of covered amps should they fail
at any time up to 6 months following date of
installation.
CTs Series
Multi-channel
4-ohm (per ch.)
8-ohm (per ch.)
70V (per ch.)
1 kHz
CTs 4200
20 Hz–20 kHz
Dual
4 Channels Driven
260W
180W
220W 215W
190W
220W*
*
4-ohm (per ch.)
8-ohm (per ch.)
70V (per ch.)
1 kHz 20 Hz–20 kHz 1 Channel Driven
270W
220W
250W 225W
210W
245W
8-ohm (per ch. pair)
16-ohm (per ch. pair)
100V (per ch. pair)
1 kHz 20 Hz–20 kHz
Bridge-Mono
2 Channel-Pairs Driven
520W
400W
220W 430W
380W
220W*
*
8-ohm (per ch. pair)
16-ohm (per ch. pair)
100V (per ch. pair)
1 kHz 20 Hz–20 kHz 1 Channel-Pair Driven
560W
440W
250W 450W
420W
245W
Maximum Average Power
in watts with 0.1% THD.
* Constant Voltage full bandwidth power ratings support
100Hz - 20kHz due to automatic High-Pass Filters.
4-ohm (per ch.)
8-ohm (per ch.)
70V (per ch.)
1 kHz
CTs 8200
20 Hz–20 kHz
Dual
8 Channels Driven
200W
160W
200W 175W
155W
185W*
*
4-ohm (per ch.)
8-ohm (per ch.)
70V (per ch.)
1 kHz 20 Hz–20 kHz 1 Channel Driven
270W
220W
250W 230W
220W
230W
8-ohm (per ch. pair)
16-ohm (per ch. pair)
100V (per ch. pair)
1 kHz 20 Hz–20 kHz
Bridge-Mono
4 Channel-Pairs Driven
400W
320W
200W 350W
310W
185W*
*
8-ohm (per ch. pair)
16-ohm (per ch. pair)
100V (per ch. pair)
1 kHz 20 Hz–20 kHz 1 Channel-Pair Driven
540W
440W
250W 460W
440W
230W
Maximum Average Power
in watts with 0.1% THD.
* Constant Voltage full bandwidth power ratings support
100Hz - 20kHz due to automatic High-Pass Filters.