Rolls Stereo Receiver DB 25b User Guide

INTRODUCTION  
Thank you for your purchase of  
the DB 25b, a passive direct box  
designed to take high impedance  
signals and convert them to low  
impedance. The unit features an  
Attenuator volume control for the  
input signal, and a Ground Lift  
switch which may reduce  
DB25b Direct Box  
2
1
2
3
1
unwanted hum caused by "ground  
loops".  
DESCRIPTION  
Input Jacks: 1/4" unbalanced  
jacks for receiving line or  
instrument level signals.  
Attenuator: Reduces the input  
signal by the amount indicated.  
Ground Lift Switch: In the "Lift"  
position, the ground connection of  
the XLR jack is disconnected from  
the chassis.  
Output Jack: XLR balanced jack  
for connection to a mixing board  
or other balanced input device.  
SPECIFICATIONS  
FOR WARRANTY  
INFORMATION, SEE  
OUR WEBSITE;  
Frequency Response: 20 - 20kHz +/- 3 dB  
Output Impedance: 600 Ohms  
Input Impedance: 50K Ohms  
Max Output Level: +4 dBm  
WWW.ROLLS.COM  
Rolls Corporation  
Salt Lake City, UT  
02/08  
 

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