Crown CT 8150, CT 875, CT 4150, CT 475 operation manual Table of Contents

CT Power Amplifiers

Table of Contents

Important Safety Instructions	2
Declaration of Conformity	3
1 Welcome	5
1.1 Features	5
2 How to Use This Manual	5
3 Features	5
4 Setup	6
4.1 Unpack Your Amplifier	6
4.2 Install Your Amplifier	6
4.3 Ensure Proper Cooling	6
4.4 Choose Input Wire and Connectors	7
4.5 Choose Output Wire and Connectors	7
4.6 Wire Your System	8
4.7 Connect to AC Mains	8
4.8 Startup Procedure	9
5 Precautions	9
6 Front Panel	10
7 Back Panel	11
8 Amp Configuration	12
8.1. 70Hz HPF (High Pass Filter)	12
8.2 Limiter	12
9 Operating Modes	12
9.1 Normal	12
9.2 Green Power	12
9.3 Deep Sleep	12
10 Auxiliary Ports	13
9.1 Deep Sleep	13
9.2 Amp Status	13
11 Input Routing	13
13 Advanced Features	14

13.1 Protection Systems	14
13.1.1 Thermal Indicator	14
13.1.2 Fault	14
13.1.3 High-Pass Filters	14
13.1.4 AC Under/Over Voltage Protection	14
13.1.5 Circuit Breaker	14
13.1.6 Convection-cooled Chassis	14
13.1.7 Auto-Standby	14
13.2 Features	14
13.2.1 Switching Power Supply	14
13.2.2 Power Mode	14
13.2.3 Adaptive Voltage Rail	14
13.2.4 DriveCore Power Stage	14
14 Accessories	14
14.1 XFMR 4/8	14
14.2. Rack Support/Ears	14
15 Troubleshooting	15
15.1 Power Indicator	15
15.2 Fault Indicator	15
15.3 Thermal Indicator	15
15.4 Clip Indicator	15
15.5 Signal Indicator	15
15.6 Ready Indicator	15
16 Specifications	16
17 AC Power Draw and Thermal Dissipation....	17
18 Service	21
19 Warranty	22
Product Registration Form	25
Factory Service Information Form	27

page 4 Operation Manual