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Panel Descriptions
20. USB connector
Use a USB cable to connect this to your computer.
21. Advanced driver switch
This switches the operating mode between Advanced mode (ON) and Standard mode (OFF).
Normally, you can leave this set to Advanced mode (ON).
* If you change this setting, you must disconnect the UA-25EX’s USB cable from your computer,
and then re-connect it.
22. Compressor/Limiter type switch
This selects the type of hardware compressor/limiter that is applied to the input signal from the
combo input jacks (1). Use the compressor/limiter threshold knob (4) to adjusts the threshold
of the compressor/limiter.
The UA-25EX provides two type of compressors, each type have different attack time.
23. Phantom power switch
This is an ON/OFF switch for the phantom power that is supplied to the XLR connectors of the front
panel combo input jacks (1).
* You must leave the phantom power turned off unless condenser microphones requiring
phantom power are connected to the XLR connectors. Supplying phantom power to a dynamic
microphone or to an audio playback device may cause malfunctions. For details on the
requirements of your microphone, refer to its owner’s manual.
* The UA-25EX’s phantom power supply: DC 48 V, 8 mA maximum.
Switch Explanation
ON
(Advanced mode)
In this mode you can use the dedicated driver, which allows you to play and record
audio with high quality and stable timing.
OFF
(Standard driver mode)
In this mode you can use the standard audio driver provided by your operating
system. This is convenient if you don’t have the dedicated driver, or if you’re unable
to install the dedicated driver. However, the following limitations apply.
• The UA-25EX will operate at 44.1 kHz/16-bit mode regardless of the setting of the
sample rate select switch (19).
• ASIO drivers are not supported.
•The MIDI IN/OUT connectors (18) cannot be used.
Switch Explanation
Compressor 1
(COMP 1)
A compressor with a short attack time, suitable for vocals.
Compressor 2
(COMP 2)
A compressor with a long attack, suitable for recording instruments such as percussion or
acoustic guitar.
Limiter
(LIMIT)
This applies mild compression when an unexpected, high-volume signal is input,
preventing clipping noise from occurring before the AD converter.
* Clipping noise will occur if the input exceeds the range of the limiter.
OFF
(BYPASS)
The compressor/limiter circuit will be completely bypassed.
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