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Rolls DU30b Mic Preamp/Audio Ducker

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rolls du30
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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.

• Automatically ducks music under announcements
• Perfect for restaurants and small clubs
• * Clean, Quiet Mic Preamp

• Input 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

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