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Operation Manual

CTs Multi-Channel Power Amplifiers

page 32

page 33

CTs Multi-Channel Power Amplifiers

Operation Manual

AC Power Draw and Thermal Dissipation:

Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz.
Typical line impedance used.
Measurements made with 120VAC mains. Line current figures for 230VAC units derived by multiplying 120VAC figures by 0.5.
Data based on all channels driven.

watts in

watts out

dissapated

Btu/hr

kcal/hr

At Idle (8.4 Ohm mode )

70

0

70

239

60

At Idle (70/100V mode)

114

0

114

389

98

1/8th Power Pink Noise

8 Ohms/Ch.

160x8

Typical of program material 

16 Ohms Bridge

320x4

just at clip.

4 Ohms/Ch.

200x8

8 Ohms Bridge

400x4

70V/Ch.

200x8

100V Bridge

200x4

1/3rd Power Pink Noise

8 Ohms/Ch.

160x8

Typical of program material

16 Ohms Bridge

320x4

with severe clipping.

4 Ohms/Ch.

200x8

8 Ohms Bridge

400x4

70V/Ch.

200x8

100V Bridge

200x4

CTs 8200

Load

Rated 

Power

Line Current 

120VAC

Line Current 

230VAC

Watts 

Thermal Dissipation

8.7

4.3

725

172

553

1889

476

13.3

6.7

1155

218

938

3200

807

10.1

5.1

857

203

653

2230

562

13.1

6.5

1136

437

699

2385

601

19.3

9.7

1748

557

1190

4062

1024

15.3

7.7

1344

552

792

2702

681

7 AC Power Draw and 

Thermal Dissipation 

(continued)

8 Network and CobraNet Basics

This section provides additional information about HiQnet or 
Network basics. For more information about any of these topics, 
contact Crown Technical Support. 

For AUX connector wiring, 

see Sections 3.2.7 and 4.1.

8.1 Network Basics

HiQnet is a network-based protocol that can control and monitor 
networked components over a common TCP/IP network. For 
components that have CobraNet capability, HiQnet can control 
and monitor these components over the same Ethernet network 
used for CobraNet audio, resulting in a single Category-5 
con nection for control, monitoring, and digital audio. Figure 8.1 
shows a typical TCP/IP network.

TCP/IP offers a number of advantages over other non-network 
communications platforms.

Figure 8.1  A Typical TCP/IP Network

 

 The use of “off-the-shelf” networking hardware.

 This 

technology makes use of network connectivity and hardware 
commonly used in the computer industry, making it both low-cost 
and readily available.

 

 Better Performance.

 The capacity for real-time display of 

meters is greatly enhanced through the use of the wide-band width 
network.

  

Single connection for both CobraNet audio and con trol 

communications

. Gone are the days of multiple connec tions to 

a component for audio and control. A single CAT5 connection 
handles it all. 

Some of the features of HiQnet include:

  Ability to quickly discover all components connected to the 

network.

  Synchronization of multiple control points on a network.

  Components on different Local Area Networks (LANs) through 

the use of an IP router (Figure 8.2).

  Component firmware upgrades via the network.

Ethernet Networks are established through the use of either a hub 
or a switch. These devices are centralized in the network and 
transfer the Ethernet data from point to point. Ethernet data is 
transferred in data packets that have addresses coded into their 
structure. Hubs and switches decipher these addresses and route 
the data packets to the appropriate component. Hubs do this by 
taking packets from any port and sending them out all other ports. 
Switches, on the other hand, are more intelligent and examine 
each packet’s address, sending that packet only to the addressed 
component. This results in a much more efficient data flow. 

Communications between networks is allowed, but requires the 
use of a special piece of equipment called an IP Router (Figure 
8.2). The router acts as a Gateway to allow this communication to 
exist. Any data traffic that is to go to the other network is routed 
through the IP Router. The CobraNet data is held behind but IP 
data goes through.

Computer

Laptop

100Mb Switch

PIP-Lite

PIP-USP3

PIP-USP3/CN

100Mb Switch

IP Router

Computer

Wireless Access Point

Laptop

AUDIO NETWORK

VENUE NETWORK

Figure 8.2  Two Networks Connected by an IP Router

Содержание CTs 4200USP/CN

Страница 1: ...n this manual was deemed accurate as of the publication date However updates to this information may have occurred To obtain the latest version of this manual please visit the Crown website at www cro...

Страница 2: ...riesgo de un choque el ctrico El tri ngulo con el signo de admiraci n es usado para alertar al usuario de instrucciones importantes de operaci n o man tenimiento WATCH FOR THESE SYMBOLS IMPORTANT CTs...

Страница 3: ...e 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 cha...

Страница 4: ...of the rack should be open Figure 2 2 illustrates standard amplifier airflow 2 Setup Figure 2 1 Dimensions Left CTs 4200USP CN Right CTs 8200USP CN Figure 2 2 Airflow 2 4 Front Panel Controls and Indi...

Страница 5: ...the Mode switch setting If this is not done the Bridge light will flash to indicate that the power must be cycled off and back on to reset the mode Q Cooling Vents Front to rear forced airflow 2 Setup...

Страница 6: ...or damage to the amplifier may result CAUTION Never use shielded cable for output wiring Figure 2 6 Balanced Input Connector Wiring See the Crown Amplifier Appli cation Guide available online at www...

Страница 7: ...be a stan dalone or separate network LAN Crown strongly recommends the use of a 100 Mb Ether net network for control and monitoring If network redundancy is required use a standard CAT5 cable to conn...

Страница 8: ...fic the indicator flashes The Link Activity LED flashes for all network traffic while the Data LED flashes only for commands addressed to this USP CN 3 2 5 CobraNet In Use Conductor Indicator The indi...

Страница 9: ...error never being detected THERMAL Errors can be generated for excessive temperature in the output section of the amplifier channel The Threshold Control sets the level that if exceeded will generate...

Страница 10: ...ng type system to continually drive the speaker allowing continuous mon itoring of the speaker load The following controls exist Sine On Off The sine wave signal generator s function Sine Frequency Co...

Страница 11: ...1 AUX Output Control of a Relay The AUX output has two enhanced modes Error Reporting and Flash Preset In Error Reporting mode the AUX port can be set up to change state when any selected error clip...

Страница 12: ...sult your electrician Models Under Voltage Limit Over Voltage Limit 100VAC 90VAC 110VAC 120 VAC units 108VAC 132VAC 220V 230V 240V units 198VAC 264VAC 4 2 6 Power Fuse A fuse protects the amplifier fr...

Страница 13: ...ve Note If the signal sounds distorted even though the Clip LED is off the input signal is distorted Check gain staging and output lev els of the mixer or preamp 5 Troubleshooting CONDITION No sound e...

Страница 14: ...r 10 Hz to 400 Hz 180 180 Crosstalk below rated power 20 Hz to 1 kHz 80 dB 80 dB Common Mode Rejection CMR 20 Hz to 1 kHz 50 dB 50 dB DC Output Offset Shorted input 5 mV 5 mV Input Impedance nominal b...

Страница 15: ...ons continued Figure 6 1 CTs 8200USP CN Typical Frequency Response 1 W Figure 6 2 CTs 8200USP CN Typical Phase Response 1 W Figure 6 3 CTs 8200USP CN Typical Damping Factor vs Frequency 6 Specificatio...

Страница 16: ...z CTs 8200USP CN MINIMUM GUARANTEED POWER In watts 0 1 THD 120VAC 60 Hz units 8 4 2 1 4 2 1 Constant Voltage full bandwidth power ratings support 100 Hz 20 kHz due to automatic high pass filters AC Po...

Страница 17: ...ntages over other non network communications platforms Figure 8 1 A Typical TCP IP Network The use of off the shelf networking hardware This technology makes use of network connectivity and hardware c...

Страница 18: ...Latency The transmitter and receiver buffering required for reliable transmission is selectable between 1 33 2 66 and 5 33 ms 64 128 and 256 samples 8 2 3 Bundles and Audio Channels You will be assig...

Страница 19: ...ice Shipping Instruc tions 1 Service Return Authorization SRA is required for product being sent to the factory for service Please complete the SRA by going to www crownaudio com support factserv htm...

Страница 20: ...service center or our factory within a reasonable time after receipt of the defec tive product at our authorized service center or our factory All expenses in remedying the defect including surface sh...

Страница 21: ...______________ State ___________________________ Zip Code ________________ Country __________________________ E mail address ___________________________________________ Phone include area code _______...

Страница 22: ..._________________ ___________________________________________________________________________________________________________________________________________________________________________ Other equi...

Страница 23: ......

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