Operation Manual; 1 Welcome; 1.1 Features- Page 5

page 5

CTs Multi-Channel 

Power Amplifiers

Operation Manual

1 Welcome

Building on the foundation of the 

Com-Tech

®

Series, Crown’s CTs Series offers new flexibility 
and value for installed sound applications. The 
Com-Tech Series were the first to offer inde-
pendent selection of high- and low-impedance 
operation for a specific channel, and CTs Series 
amplifiers continue that tradition, with power 
levels and features carefully chosen to perfectly 
integrate into fixed install design requirements.

Modern power amplifiers 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 amplifiers 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 amplifier. 

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 new MC accessory modules that 
tailor the amplifier to suit specific applica-
tions. Modules available for remote VCA 
level control and 

IQ System

® 

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 flashes if the ampli-
fier 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 efficiency.

•

Three Year, No-Fault, Fully-Transferable 
Warranty completely protects your invest-
ment and guarantees its specifications.

2 How to Use This 
Manual

This manual provides you with the necessary 
information to safely and correctly setup and 
operate your amplifier. 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 

Amplifier 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 official proof of pur-
chase.

4-ohm (per ch.)
8-ohm (per ch.)
70V (per ch.)

1 kHz

CTs 4200

20 Hz–20 kHz

Dual

4 Channels Driven

260W
200W
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.