DB25b Direct Box
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
50K PRI TO 600 ohm SEC | T1 |
| P1 |
2
JACK M | 3 |
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XLR |
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P50K
J3
1
XFMR AUDIO
1
SPST
SW1
2 3
GROUND LIFT
impedance. 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
ATTENUATOR
SCHEMATIC | 1/4 |
| 1/4 |
J1 | PHONE | J2 | PHONE |
FOR WARRANTY
INFORMATION, SEE
OUR WEBSITE;
WWW.ROLLS.COM
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
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
