User manual ROLLS DB25B
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Manual abstract: user guide ROLLS DB25B
Detailed instructions for use are in the User's Guide.
[. . . ] [. . . ] The unit features an Attenuator volume control for the input signal, and a Ground Lift switch which may reduce unwanted hum caused by "ground loops". DESCRIPTION Input Jacks: 1/4" unbalanced jacks for receiving line or instrument level signals. 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 Frequency Response: 20 - 20kHz +/- 3 dB Output Impedance: 600 Ohms Input Impedance: 50K Ohms Max Output Level: +4 dBm
Rolls Corporation Salt Lake City, UT 02/08
SCHEMATIC
PHONE 1/4
ATTENUATOR
P50K
P1
XFMR AUDIO
T1
J2
PHONE 1/4
J1
FOR WARRANTY INFORMATION, SEE OUR WEBSITE; WWW. ROLLS. COM
GROUND LIFT
J3
SW1 SPST
3
2
3
1 1
2 [. . . ] [. . . ]
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