Crown Audio CTs Series (Multi-Channel USP_CN) - Manual (Page 3)

Operation Manual
CTs Multi-Channel Power Amplifiers
page 4 page 5
CTs Multi-Channel Power Amplifiers
Operation Manual
Important Safety Instructions ........................................................ 2
Declaration of Conformity ............................................................. 3
1 Welcome ...................................................... 5
1.1 Features ............................................................................. 5
1.2 How to Use This Manual ..................................................... 5
2 Setup .......................................................... 6
2.1 Unpack Your Amplifier ....................................................... 6
2.2 Install Your Amplifier .......................................................... 6
2.3 Ensure Proper Cooling ....................................................... 6
2.4 Front Panel Controls and Indicators .................................... 7
2.5 Back Panel Controls and Connectors ................................. 8
2.6 CobraNet and Control Module:
Connectors, Indicators and Controls .................................... 9
2.7 Choose Input Wire and Connectors .................................... 10
2.8 Choose Output Wire and Connectors ................................. 10
2.9 Audio Wiring ...................................................................... 11
2.9.1 Dual 8/4 Mode ........................................................... 11
2.9.2 Dual 70V Mode .......................................................... 11
2.9.3 Bridge-Mono 16/8 Mode ........................................... 12
2.9.4 Bridge-Mono 100V Mode .......................................... 12
2.10 Network Wiring Rules ....................................................... 13
2.11 Network Wiring ................................................................. 13
2.12 Audio and Aux Wiring ....................................................... 13
2.13 Connect to AC Mains ........................................................ 13
2.14 Startup Procedure ............................................................. 13
3 Operation .....................................................14
3.1 Precautions ........................................................................14
3.2 CobraNet and Control Module Features ..............................15
4 Advanced Features .........................................21
4.1 Using the Aux Connector ...................................................21
4.1.1 Aux Output .................................................................21
4.1.2 Aux Input ....................................................................21
4.1.3 Listen Bus Wiring .......................................................21
4.2 Protection Systems ........................................................... 22
4.2.1 Thermal Level Control ............................................... 22
4.2.2 Fault .......................................................................... 22
4.2.3 Fault Isolation Topology (FIT) .................................... 22
4.2.4 35-Hz High-Pass Filter .............................................. 22
4.2.5 AC Under-Voltage/Over-Voltage Protection ............... 22
4.2.6 Power Fuse ............................................................... 22
4.2.7 Inrush Limiting .......................................................... 22
4.2.8 Variable-speed Fans .................................................. 22
4.2.9 Switching Power Supply ........................................... 22
4.2.10 Mode Switch ........................................................... 22
4.2.11 Bridge Mode Indicator.............................................. 22
4.2.12 Channel Level Control ............................................. 23
5 Troubleshooting ............................................ 24
6 Specifications .............................................. 27
7 AC Power Draw and Thermal Dissipation ............... 31
8 Network and CobraNet Basics ............................ 33
8.1. Network Basics ................................................................ 33
8.2 A Closer Look at CobraNet ................................................ 34
8.2.1 Fast Ethernet .............................................................. 34
8.2.2 Audio Specs .............................................................. 35
8.2.3 Bundles and Audio Channels ..................................... 35
8.2.4 The Conductor ........................................................... 35
8.2.5 Repeater Networks ..................................................... 35
8.2.6 Switched Networks ..................................................... 35
9 Service ....................................................... 36
9.1. International and Canada Service ..................................... 36
9.2 US Service ........................................................................ 36
9.2.1 Service at a US Service Center ................................... 36
9.2.2 Factory Service ......................................................... 36
9.2.3 Factory Service Shipping Instructions ........................ 36
9.2.4 Packing Instructions .................................................. 36
9.2.5 Estimate Approval ...................................................... 36
9.2.6 Payment of Non-Warranty Repairs.............................. 36
10 Warranty ................................................... 37
Product Registration ..................................................................... 41
Crown Factory Service Information Form ..................................... 43
Table of Contents
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 independent 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 inte grate
into fixed install design requirements.
Thanks to the factory-installed CobraNet and Control
Module, each amplifier is a network component. It
con nects to the audio control/monitor network using
stan dard 100Mb Ethernet hardware. With this protocol,
an audio system can be interconnected using standard
off-the shelf 100 Mb Ethernet components (switches,
Net work Interface Cards, and cables).
The Crown CTs 4200USP/CN and CTs 8200USP/CN
include SmartAmp features and 3rd-generation DSP-
based components. Their SHARC DSP processor gives
the user an enormous amount of digital signal
process ing. Audio routing, faders, meters, polarity &
mute, input compressors, filters, multimode output
limiters, error reporting, and load monitoring are all
available. A built-in noise generator and sine-wave
generator pro vide noise masking and test capabilities.
In addition, the amplifier allows the transport of real-
time digital audio via CobraNet™ over the same 100Mb
Ethernet network that is used for amplifier control and
monitoring. This provides a simple to install, single-
plug solution for control, monitoring, and full-
band width audio distribution. The amplifier can function
independently from the network control. Once the
pro cessing is configured, the unit’s non-volatile
memory allows the amplifier to continue to function with
no external control.
Please take the time to study this manual so that you can
obtain the best possible service from your amplifier.
1.1 Features
• 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-
imped ance (8/4 ohm) operation for each channel pair
• In the unlikely event of a channel failure, FIT (Fault
Isola tion Topology) circuitry isolates faults within
affected channels
• 35 Hz High-Pass Filter (70 Hz in CTs 4200) is
automati cally inserted when the channel pair is set for
constant-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 channel, provide accurate diagnostics
• Blue Power Indicator flashes if the amplifier shuts off due
to an under-voltage or over-voltage condition on the AC
mains
• Advanced protection circuitry guards against: shorted
outputs, open circuits, DC, mismatched loads, general
overheating, under-voltage or over-voltage, high-
fre quency overloads and internal faults
• Proven Crown AB+B Multi-Mode ® output topology
• Continuously-variable-speed fans optimize cooling
effi ciency
• Built-in CobraNet and Control Module connects to a
CobraNet network. This allows a 100 Mbps Ethernet
sin gle-plug solution for CobraNet audio, and HiQnet
con trol and monitoring
• Analog audio inputs allow CobraNet network audio input,
CobraNet audio backup, or a hardwire emergency
override of CobraNet audio
• 24 bit digital to analog conversion with 32 bit, floating
point DSP processing
• Up to 18 assignable filters per channel
• Over 2 seconds of delay available per channel
• Input compressors and output limiters for each
channel
• Noise generator for noise masking
• Sine generator
• Load supervision
• Full error reporting
• Firmware upgrades via the network
• 10 user selectable presets
• Reliable FLASH memory backup of all parameters
• Three Year, No-Fault, Fully Transferable Warranty
completely protects your investment and
guaran tees its specifications
1.2 How to Use This
Manual
This manual provides you with the necessary
informa tion 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 condi tion. For additional 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 instructions,
warnings and cautions contained in this manual. Also,
for your protection, please send in your warranty
reg istration card today, or register online at www.
crownaudio.com. And save your bill of sale—it’s your
official proof of purchase.
4-ohm (per ch.)
8-ohm (per ch.)
70V (per ch.)
1 kHz
CTs 4200USP/CN
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 8200USP/CN
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.