Rolls Music Mixer SX45 User Guide

f r e q u  
. . . a n  
I n - s t a l  
- L i v  
INTRODUCTION  
Thank you for your purchase of the SX45 Tiny Two-Way Cross-  
over. The SX45 is desgned and manufactured to provide years of  
service. Modern sound reinforcement applications require clean,  
precise signal dividing for maximum efficiency and best sound. The  
SX45 circuitry provides just that function.  
Please review this manual to get the best performance from this  
unit.  
- S t u  
a y W - C r o w s s o o v e r  
S X 4  
DESCRIPTION  
FRONT PANEL  
e v r o s s o S X  
INPUT: Adjusts the input level to the SX45.  
FREQUENCY: Selects the crossover frequency from 50Hz to  
2.5kHz.  
LOW LEVEL: Adjusts the amount of output signal from the LOW  
OUT jacks.  
HIGH LEVEL: Adjusts the amount of output signal from the HIGH  
OUT jacks.  
CLIP LED: Indicates overload in the SX45. This LED lights 3 dB  
before actual circuit clipping occurs.  
PWR LED: Indicates the SX45 power supply is connected to the  
unit and an AC outlet.  
SX45  
Stereo Two-Way Crossover  
The SX45 is a unique frequency dividing device for small  
sound reinforcement applications. The unit features a 12  
dB/Octave rolloff rate, a frequency dividing range of 50Hz to  
2.5kHz, and an external power supply for noise reduction. All  
this in a compact package with a compact price.  
REAR PANEL  
• 12 dB/Octave rolloff  
• Stereo RCA Input and Outputs  
• 50Hz to 2.5 kHz crossover range  
• Mono Sub Output  
SPECIFICATIONS  
Input Impedance:  
Output Impedance:  
Headroom:  
10K Ohm  
1K Ohm  
+10 dBV  
Power Requrements:  
12 - 16 VDC, 150 mA;  
Rolls part number PS27  
4.25" x 3.625" x 1.5"  
1 lb.  
Size:  
Weight:  
(Note: The rear panel jacks are labeled on the top of the unit.)  
INPUT: Dual RCA jacks for connecting to the output of a mixer or  
other device containing the signals to be divided.  
HIGH OUT: Dual RCA jacks containing the signal of frequencies  
above the crossover frequency.  
LOW OUT: Dual RCA jacks containing the signal of frequencies  
below the crossover frequency.  
WARRANTY  
For information on the Rolls One Year Limited Warranty, and  
to register this product, visit our website at www.rolls.com  
MONO LOW OUT: Dual RCA jacks with a mono, combined signal  
from the stereo Low Out jacks.  
DC IN: For connection to an external power supply, 12-16 volts DC,  
150 mA; Rolls model PS27.  
Rolls Corporation  
Salt Lake City, UT  
10/06  
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