Manual

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 )
70 070 239 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