Xantech FOUR CHANNEL HI-POWER AMPLIFIER, PA4100X

Page 6 Model PA4100X

are currently in STANDBY MODE. W henever the LOGO is not illuminated, this indicates the amplifier is

powered OFF.

5. Feet: Provides required ¾” spacing when unit is shelf m ounted to allow for proper ventilati on. These feet

should not be removed. (see the section entitl ed INSTALLATION for further inf ormation)

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FIGURE 3 – PA4100X REAR PANEL - FEATURES AND FUNCTIONS

6. Line Inputs. These RCA-type jacks are the audio inputs f or each of the amplifier pai rs. Connect them to

the Preamp Output jacks of Zone 7 & 8 of t he MRC88 (or other driving preamp output) with good qual ity

RCA-type patch cables. Note that the inputs are mark ed LEFT-A-RIGHT, LEFT-B-RIGHT signif ying the

stereo channel pairs.

7. Input LEVEL Control. This screwdriver adjustable control ( for each stereo pair) allows the input lev el for

full rated power output to be adjusted over a range of 0.2 volts to 3 volts (24.3 dB range) . Normally you

would adjust the driving preamp to max imum volume, then set thi s control to the maximum v olume that

the client desires for a given zone or r oom. This prevents the system from bei ng driven to unwanted

power levels.

8. FUSE. When required, replace onl y with a fuse of the same type and rating:

 120 V Version: 10.0 AMP 250 VAC, SLOW BLOW .

 240 V Version: 5.0 A Time-Lag 250 VAC.

CAUTION: Replacement with a fuse of higher rating will not protect the amplifier and will void the

warranty.

9. SPEAKER Terminals. These plug-in 4-terminal screw type connectors permit speaker wire siz es up to

12 gauge. When making connections for t he STEREO mode, be sure to observe the "+” and "–" polari ty

markings, just under the LEFT & RIGHT m arkings, for each wire pair going to the speakers.