Roland UA-25 - Manual (Page 13)

13
Front and rear panel
19. Phantom power switch
This is an on/off switch for the phantom power supplied to the XLR connectors of
the
combo input jacks (1) on the front panel.
* You must leave the phantom power turned off (right position) unless condenser mics requiring
phantom power are connected to the XLR jacks. Supplying phantom power to a dynamic mic or
an audio playback device may cause malfunction. For details on the requirements of your mic,
refer to its owner’s manual.
(The UA-25’s phantom power supply: DC 48 V, 8 mA maximum)
20. USB connector
Use a USB cable to connect the UA-25 to your computer.
21. ADVANCE (mode select) switch
This switches the driver operation mode.
If you change the setting of this switch, you must close all software, disconnect the
USB cable that connects the UA-25 to your computer, and then re-connect the USB
cable.
On (Advanced mode)
You can use the included UA-25 driver to record, play, and edit audio from your
sequencer software or audio editing software with high quality and stable
timing.
Off (Standard driver mode)
Choose this mode if you are using software that uses the standard audio driver
included with your operating system.
* The sample rate will be fixed at 44.1 kHz/16 bit regardless of the setting of the UA-25’s sample
rate select switch.
* The MIDI IN/OUT connectors are not available when using Standard driver mode.
For details on these operating modes, refer to “About the driver modes”
(Windows, p. 14; Macintosh, p. 32).
22. 96 kHz REC/PLAY select switch
When using the UA-25 at 96 kHz, this switches between 96 kHz REC (recording) or
96 kHz PLAY (playback). If you change the setting of this switch, you must
disconnect the USB cable that connects the UA-25 to your computer, and then re-
connect the USB cable.
23. Sample rate select switch
This specifies the sample rate at which audio data is recorded and played back. If
you change the setting of the Sample Rate select switch, you must close all software,
disconnect the USB cable that connects the UA-25 to your computer, and then re-
connect the USB cable.
* 96 kHz can be used only in Advanced mode. Also, you will need to set the 96 kHz REC/PLAY
select switch to either REC (recording) or PLAY (playback) in order to record or play back
successfully.
* If you are using Standard driver mode (the ADVANCE switch turned off), the sample rate is
fixed at 44.1 kHz regardless of the Sample Rate select switch setting.
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