The DU30b is a microphone preamp and background music preamp. When an announcement is made into the microphone, the music is automatically "ducked" under the announcement. Then the music is brought back to it′s previous level.
In the Box:
Rolls DU30b Audio Ducker with Microphone Preamp
External Power SupplyInput Impedance: 100K Ohms unbalanced, 600 Ohms balanced
Frequency Response: 20 Hz - 40 kHz
THD + Noise: 0.03% typical
Noise Floor: -78 dB
Indicators: Power LED
Input/Output jacks: XLR balanced Input, RCA unbalanced input and output
Size: 4" x 4" x 1.5"
Weight: 1 lb. (.5 kg)
Power: 12 - 16 VDC 50mA, 5 x 1.2 mm DC Jack - Center Negative
For export (= shipments outside of Singapore) we do not charge GST. In this case, please refer to the prices excl GST.
