Welcome; Features; How To Use This Manual - Crown CTs 1200 Operation Manual

CTs Power Amplifi ers
CTs 4200
Maximum Average Power
Dual
in watts with 0.1% THD.
4 Channels Driven 1 kHz 20 Hz–20 kHz
4-ohm (per ch.) 260W 215W
8-ohm (per ch.) 180W 190W
*
70V (per ch.) 220W 220W
1 Channel Driven 1 kHz 20 Hz–20 kHz
4-ohm (per ch.) 270W 225W
8-ohm (per ch.) 220W 210W
70V (per ch.) 250W 245W *
Bridge-Mono
2 Channel-Pairs Driven 1 kHz 20 Hz–20 kHz
8-ohm (per ch. pair) 520W 430W
16-ohm (per ch. pair) 400W 380W
100V (per ch. pair) 220W 220W *
1 Channel-Pair Driven 1 kHz 20 Hz–20 kHz
8-ohm (per ch. pair) 560W 450W
16-ohm (per ch. pair) 440W 420W
100V (per ch. pair) 250W 245W *
*
Constant Voltage full bandwidth power ratings support
100Hz - 20kHz due to automatic High-Pass Filters.
CTs 8200
Maximum Average Power
Dual in watts with 0.1% THD.
8 Channels Driven 1 kHz 20 Hz–20 kHz
4-ohm (per ch.) 200W 175W
8-ohm (per ch.) 160W 155W
70V (per ch.) 200W 185W *
1 Channel Driven 1 kHz 20 Hz–20 kHz
4-ohm (per ch.) 270W 230W
8-ohm (per ch.) 220W 220W
70V (per ch.) 250W 230W *
Bridge-Mono
4 Channel-Pairs Driven 1 kHz 20 Hz–20 kHz
8-ohm (per ch. pair) 400W 350W
16-ohm (per ch. pair) 320W 310W
100V (per ch. pair) 200W 185W *
1 Channel-Pair Driven 1 kHz 20 Hz–20 kHz
8-ohm (per ch. pair) 540W 460W
16-ohm (per ch. pair) 440W 440W
100V (per ch. pair) 250W 230W *
*
Constant Voltage full bandwidth power ratings support
100Hz - 20kHz due to automatic High-Pass Filters.
Operation Manual

1 Welcome

Building on the foundation of the Com-Tech
®
Series, Crown's CTs Series offers new fl exibility
and value for installed sound applications. The
Com-Tech Series were the fi rst to offer
inde pendent 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.
Modern power amplifi ers are sophisticated
pieces of engineering capable of producing
extremely high power levels. They must be
treated with respect and correctly installed if
they are to provide the many years of reliable
service for which they were designed.
In addition, CTs Series amplifi ers include a
number of features which require some
expla nation before they can be used to their
maxi mum advantage.
Please take the time to study this manual so that
you can obtain the best possible service from
your amplifi er.

1.1 Features

• New Crown Switching Power Supply for
®
reduced weight.
• High power-density, with eight channels in
a 3U chassis and four channels in a 2U
chassis.
• Selectable constant-voltage (70V/100V) or
low-impedance (8/4 ohm) operation for
each channel pair.
• FIT (Fault Isolation Topology) circuitry
isolates faults within affected channels.
• 35 Hz High-Pass Filter (70 Hz in CTs 4200)
is automatically inserted when the channel
pair is set for constant-voltage operation.
(corner frequency may be changed as a
service option).
• Accepts VC-MC accessory module that
tailors the amplifi er for remote VCA level
control.
• Comprehensive array of indicators
includ ing Power and Data, along with
Bridge, Ready, Signal, Clip, Thermal and
Fault for each channel, provide accurate
diagnos tics.
• Blue Power Indicator fl ashes if the
ampli fi 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
overheat ing, under-/over-voltage, high-
frequency overloads and internal faults.
• Proven Crown AB+B Multi-Mode ® output
topology.
• Continuously-variable-speed fans
opti mize cooling effi ciency.
• Three Year, No-Fault, Fully-Transferable
Warranty completely protects your
invest ment and guarantees its
specifi cations.
2 How to Use This
Manual
This manual provides you with the necessary
information to safely and correctly setup and
operate your amplifi er. It does not cover every
aspect of installation, setup or operation that
might occur under every condition. For
addi tional information, please consult Crown's
Amplifi er Application Guide (available online at
www.crownaudio.com), Crown Tech Support,
your system installer or retailer.
We strongly recommend you read all
instruc tions, warnings and cautions contained
in this manual. Also, for your protection, please
send in your warranty registration card today, or
reg ister online at www.crownaudio.com. And
save your bill of sale—it's your offi cial proof of
pur chase.
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