Rolls SX45 Leaflet

Rolls Corporation 

Salt Lake City, UT

10/06

... anywhere you need compact, accurate 

frequency separation.

For information on the Rolls One Year Limited Warranty, and 

to register this product, visit our website at www.rolls.com

SPECIFICATIONS
Input Impedance:  

10K Ohm

Output Impedance: 

1K Ohm

Headroom: 

 

+10 dBV

Power Requrements: 

12 - 16 VDC, 150 mA; 

 

 

 

Rolls part number PS27

Size: 

 

 

4.25" x 3.625" x 1.5"

Weight:   

 

1 lb.

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.

• 12 dB/Octave rolloff

• Stereo RCA Input and Outputs

• 50Hz to 2.5 kHz crossover range

• Mono Sub Output

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.

FRONT PANEL

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.

REAR PANEL

(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.

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.