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What's in the box?
1 - Made in USA DU30b
1 - 15V power supply PN PS27s
1 - This owners manual
Rolls Corporation
Salt Lake City, UT
8/19
Made in USA ww.rolls.com
DU30b Audio Ducker
Made in USA ww.rolls.com
SPECIFICATIONS
Frequency Response
Input Impedance
THD + Noise
Noise Floor
Indicators
Input/Output jacks
Size:
Weight:
Power:
- Restaurants
- Clubs
- Schools
... Anywhere you need to duck a paging signal under a
background source.
Connection guide
20 Hz - 40 kHz
100KΩ unbalanced, 600 Ω balanced
<0.03% typical
-78 dB
Power LED
XLR balanced input
RCA unbalanced input and output
4" x 4" x 1.5"
1 lb. (.5 kg)
12 - 15 VDC 500mA
5 x 1.2 mm DC Jack - Center Negative
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Summary of Contents for Rolls DU30b
- Page 1 What's in the box? Frequency Response 20 Hz - 40 kHz Input Impedance 100KΩ unbalanced, 600 Ω balanced 1 - Made in USA DU30b THD + Noise <0.03% typical 1 - 15V power supply PN PS27s Noise Floor -78 dB...
- Page 2 Mic In circuit. A NOTE ON THE DU30b THRESHOLD, WITH THE SEN- SITIVITY CONTROL FULLY CLOCKWISE: If the control (paging) signal is on the XLR input, then ducking begins (the threshold is) at -40 dB when the Mic/ Line switch is set to “Mic”, and 0 dB when the switch...
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