Crown Audio MA-5002VZ ユーザーズマニュアル

Connect the AC power cordset of your amplifier 
to the AC mains power source (power outlet). 
NOTE: The plug supplied with 120V versions of 
the MA5000VZ is a 120V, 30-ampere plug 
(Figure 3.9).

Amplifiers don’t create energy. The AC mains 
voltage and current must be sufficient to deliver 
the power you expect. You must operate your 
amplifier from an AC mains power source with 
not more than 10% variation above or below the 
amplifier’s specified line voltage and within the 
specfied frequency requirements (indicated on 
the amplifier’s back panel label). If you are 
unsure of the output voltage of your AC mains, 
please consult your electrician.

 

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.

3.

Turn on the “Enable” switch. The Enable indicator 
should glow. 

4.

Turn up the level of your audio source to an opti-
mum level.

5.

Turn up the Level controls on the amplifier until 
the desired loudness or power level is achieved.

6.

Turn down the level of your audio source to its 
normal range.

Your Macro-Tech Series 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 con-

figured for proper operation, including input 
and output wiring hookup. Improper wiring 
can result in serious operating difficulties. 
For information on wiring and configura-
tion, please consult the Setup section of this 
manual or, for advanced setup techniques, 
consult Crown’s Amplifier Application 
Guide available online at www.crownau-
dio.com.

2.

Use care when making connections, select-
ing signal sources and controlling the out-
put 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 haz-
ardous and invalidates all agency listings.

6.

Do not operate the amplifier with the Signal/
IOC LEDs constantly flashing. 

7.

Do not overdrive the mixer, which will cause 
a clipped signal to be sent to the amplifier. 
Such signals will be reproduced with 
extreme accuracy, and loudspeaker damage 
may result. 

8.

Never operate the amplifier with less than 
the rated load impedance. Due to the ampli-
fier’s output protection, such a configuration 
may result in premature clipping and 
speaker damage.