US Audio Whirlwind Presspower (Press Conference Mixer)

US Audio Whirlwind Presspower, Press Conference audio mixer. 2x inputs 16x output

The U.S. Audio/Whirlwind Presspower features 2 mic/line inputs with individual gain controls and 16 transformer isolated outputs that are individually switchable for mic or line level operation. The PRESSPOWER 2 includes a 20-segment LED level meter, an internal test tone generator, a built-in headphone monitor amp with volume control, high-pass filters, and phantom power — all conveniently front-panel accessible.

The high-performance input stage provides clean audio even in high RF environments.

The unit can be powered by 115 / 230 VAC – 50 / 60 Hz, by (4) 9 V internal batteries or with an external DC supply (12 – 36 VDC) connected via rear terminals. This allows the unit to be powered by a car battery, cigarette lighter, camera pack battery, etc. In the event of an AC power failure or battery exhaustion, the unit will automatically switch to alternate power by selecting the strongest Voltage available.

• Frequency Response: -.5dBm 20Hz to -2dBm 16kHz
• Input Impedance:
• Mic: 1.5k Ohms
• Line: 200k Ohms
• Maximum Input Level:
• Mic: -5dBm
• Line: +50dBm
• Output Impedance:
• Mic: 150 Ohms
• Line: 150 Ohms
• Maximum Output Level:
• Mic: -5 dBm into 2k Ohms
• Line: +23 dBm into 2k Ohms
• Total Harmonic Distortion: .075% at 1 kHz, mic @ unity gain