Page 1
LEVEL
INPUT
OUTPUT
2
Output
Buffer
30dB
PAD
SWITCH
GROUND
LIFT
R
RDB104
CHANNEL ONE
CHANNEL TWO
QUAD
DIRECT BOX
ACTIVE
POWER
LEVELLEVELLEVELLEVEL
CHANNEL THREE
INPUT
-00 0 -00 0
CHANNEL FOUR
NRTL /C
PAD
-30 dB
LIFT
GND
PAD
-30 dB
LIFT
GND
PAD
-30 dB
LIFT
GND
PAD
-30 dB
RDB104 Quad Direct Box
The RDB104 Quad Active Direct Box is a four channel impedance matching
device designed for the audio professional and musician. Each channel of the
RDB104 features two paralleled 1/4" input jacks, one on the front panel the
other on the rear, and one XLR output. An input Level control, a 30 dB output
INPUT
Pad switch, and a Ground Lift switch have also been provided for each channel.
Each channels' input impedance is 100k ohms, and the output impedance is 100
ohms balanced. The signal is electronically balanced eliminating low frequency
rolloff and unwanted phase shift.
OUTPUT
FEATURES:
Four channels of active impedance matching
INPUT
Paralleled input jacks on the front and rear
Each Channel features:
Input Level control
Pad switch
OUTPUT
Ground lift switch
SPECIFICATIONS
INPUT
Input Impedance: 100 kW
Output Impedance: 100 W balanced
Max. Output Level: +22 dB (Pad out)
OUTPUT
Gain: -infinit y to 0 dB
THD: < 0.007%
Noise referenced to 0: < -90dB
Headroom max out level: +22 dB
INPUT
Dimensions 1.75" X 6" X 19"
(89mm X 162mm X 482mm)
Weight 6 lbs. (2.72 Kg)
Power 120VAC (230VAC) 15VA
OUTPUT
LIFT
GND
-00 0
INPUT INPUT
-00 0
CHANNEL ONE CHANNEL TWO CHANNEL THREE CHANNEL FOUR
INPUT
SERIAL NUMBER
104-
MODEL RDB104
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
WARNING:
RISQUE DE CHOC - NE PAS ENLEVER
RISK OF ELECTRIC SHOCK
120 VAC
50/60 Hz 15 VA
MADE IN U.S.A.
NO USER SERVICABLE PARTS INSIDE.
ROLLS Coporation
5143 South Main Street, Salt Lake City, UT, 84107
(801) 263-9053 FAX (801) 263-9068
rolls@rolls.com • www.rolls.com
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