Crown ma-24x6 Guía Del Usuario

       120 VAC, 60 Hz units have a 20-amp (12 AWG) 

line cord with a grounded NEMA 5-15P plug. 
See Section 8 for AC power usage.

       The reset switches are used to reset the break-

ers that safeguard each power supply from 
overload.

       The standard P.I.P.-FX is included with your 

amplifier. It provides female XLR input connec-
tors. A variety of other PIP modules can be 

used in place of the P.I.P.-FX. They add addi-
tional features that customize the amplifier for 
different applications. For information on avail-
able PIP modules visit the Crown website at 
http://www.crownaudio.com.

       The three-position input sensitivity switch 

located inside the amplifier is accessed by 
removing the PIP module (I). It is factory-set to 
0.775 volts for rated 8 ohm output. It can also 
be set to 1.4 volts for rated output, or a voltage 
gain of 26 dB (see Section 4.3.3).

       Balanced ¼-inch phone jack input connectors 

are provided on the back panel of your ampli-
fier. The phone jacks can be wired for either 

balanced (tip, ring and sleeve) or unbalanced 
(tip and sleeve) input signals. Because they are 
electrically in parallel with the PIP input con-
nectors, input signals should not be connected 
to the phone jacks when certain PIP modules 
are installed (see the Crown Amplifier Applica-
tion Guide availabel online at www.crownau-
dio.com). The phone jacks can also be used as 
“daisy chain” outputs to simplify connecting 
input signals to multiple amplifiers.

       This switch isolates or “lifts” the phone jack 

signal grounds from the AC power ground. 
Activating the switch inserts an impedance 
between the sleeve of each phone jack and the 
unit’s AC ground to help prevent the hum that 
can result from a ground loop.

       The factory-installed P.I.P.-FX provides a three-

pin female XLR connector for balanced input to 
each channel. The XLR inputs are connected in 
parallel with the amplifier’s phone jack inputs. 
Because the P.I.P.-FX does not have any active 
circuitry, its XLR connectors can also be used 
as “daisy chain” outputs to connect signals 
from phone jack inputs to multiple amplifiers .

       A pair of versatile 5-way binding posts is pro-

vided for the output of each channel. The 5-way 
binding posts accept banana plugs, spade lugs 
or bare wire. Note: Because of its higher output 
power, the Macro-Tech 36x12 has an additional 
set of binding posts.