Crown CT 8150 User Manual

4.8 Startup Procedure
Use the following procedure when first turning on your 

amplifier:
1.  Turn down the level of your audio source. 
2.  Turn down the level controls of the amplifier (see 

Section 7.6).

3.  Turn on the “Power” switch. The Power indicator 

should glow.

4.  Turn up the level of your audio source to an 

optimum level.

5.  Turn up the Level controls on the amplifier until the 

desired loudness or power level is achieved.

If you ever need to make any wiring or installation 

changes, don’t forget to turn off the amplifier and 

discon nect the power cord.
For help with determining your system’s optimum gain 

structure (signal levels) please refer to the Crown 

Ampli fier Application Guide, available online at  

www.crownaudio.com.

5 Precautions

Your amplifier is protected from internal and external 

faults, but you should still take the following 

precautions for optimum performance and safety:
1.  Before use, your amplifier first must be configured 

for proper operation, including input and output 

wiring hookup. Improper wiring can result in 

serious operat ing difficulties. For information on 

wiring and config uration, please consult the Setup 

section of this manual or, for advanced setup 

techniques, consult Crown’s Amplifier Application 

Guide  available online at www.crownaudio.com.

2.  Use care when making connections, selecting 

signal sources and controlling the output level. 

The load you save may be your own!

3.  Do not short the ground lead of an output cable to 

the input signal ground. This may form a ground 

loop and cause oscillations.

5.  Tampering with the circuitry, or making 

unauthorized circuit changes may be hazardous 

and invalidates all agency listings.

6.  Do not operate the amplifier with the red Clip LEDs 

constantly flashing. 

7.  Do not overdrive the mixer, which will cause 

clipped signal to be sent to the amplifier. Such 

signals will be reproduced with extreme accuracy, 

and loudspeaker damage may result. 

8.  Do not operate the amplifier with less than the 

rated load impedance. Due to the amplifier’s 

output protec tion, such a configuration may result 

in premature clipping and speaker damage. 

9.  Output of amplifier cannot be bridged or multiple 

channels cannot be connected together.

Remember: Crown is not liable for damage that results 

from overdriving other system components.

4 Setup