# Input Tab Window

> > 1. Device Icon & ID Button - see the description above.
> > 2. Analog Level - Use this menu to select microphone, instrument, or line input.
> > 3. Soft Limit - Use this menu to engage Soft Limit. Soft Limit is Apogeeʼs proprietary analog process for taming transients before A/D conversion. By gently rounding transients in a transparent manner, itʼs possible to maximize level BEFORE the A/D conversion stage.
> > Soft Limit is most effective with signals with large transients such as drums, percussion and plucked instruments. Soft Limit may not be the appropriate choice for signals such as bass or organ.
> > 4. Input Level - The gain of each input is controlled with these software knobs. The gain level is indicated in the value box below the knob.
> > 5. Analog Input Meter - This meter displays the level of the analog input after A/D conversion.
> > 6. Group On/Off - Use this to group the gain setting of both inputs so that the multi-function knob on Duet or one software gain knob controls both input gains simultaneously. If a gain offset is present between inputs when Group is set to On, this offset is preserved.
> > 7. Phase - Check this box to reverse the polarity of the input signal. Under certain circumstances, when two mics are used on one source, reversing the polarity of one mic may result in a fuller sound. For example, when top and bottom mic'ing a snare drum, a fuller sound is obtained when the polarity of the bottom mic is reversed.
> > 8. 48 V / Phantom Power- Engage this button for 48 volts phantom power on the XLR connections. Condenser mics require phantom power to operate.