The Rolls DU30b Mic-Preamp/Audio Ducker is perfect for boosting audio performance with crystal clear sound management. This versatile device lets you make announcements without overwhelming background music, automatically adjusting microphone levels for a smooth, seamless experience. Make sure your audio is up to par with the DU30b's advanced features.

Specs:

• 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

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