User Manual
Panel Controls and Terminals
UR-RT4 / UR-RT2 Operation Manual 3
Panel Controls and Terminals
Front Panel UR-RT4
1 [USB] indicator
Lights up when the power is turned on and the unit is
communicating with the computer or iOS device.
The indicator flashes continuously when the computer or
iOS device does not recognize the device.
2 [MIC/HI-Z 1/2] jack
For connection to a microphone, digital instrument,
electric guitar, or electric bass.
This jack can be connected to both XLR-type and phone-
type (unbalanced only) plugs. The XLR-type is MIC only
and the phone type is HI-Z only.
3 [MIC/LINE 3/4] jack
For connection to a microphone or digital instrument.
This jack can be connected to both XLR-type and phone-
type (balanced/unbalanced) plugs. The XLR type is MIC
only and the phone type is LINE only.
4 [PEAK] indicator
Lights up according to the input signal. Lights up when
the input signal is 3 dB below the clipping level.
5 [+48V] indicator
Lights up when the [+48V] switch (phantom power) is
turned on.
6 [TRANSFORMER] switch
Switches the transformer circuit of the [MIC/HI-Z 1/2] jack
and [MIC/LINE 3/4] jack on and off.
NOTE
The unit features one transformer of analog circuitry for each front
input channel, created by Rupert Neve Designs® specifically for
audio interface use.
7 [GAIN 1 to 4] knob
Adjusts the input signal level of the [MIC/HI-Z 1/2] jack
and [MIC/LINE 3/4] jack.
1 2
54 4
3
54 4
7 9
6 8 )
Plug types
Proper use of the HI-Z or LINE inputs
HI-Z
Guitar and bass with passive pickups (not battery
powered)
LINE
• Effect device, preamp, direct box
• Guitar and bass with active pickups (battery powered)
• Digital instruments, such as synthesizer
XLR-type (balanced)
Phone-type (balanced)
Phone-type (unbalanced)
Setting optimum recording levels
Adjust the gain knobs so that the [PEAK] indicator flashes
briefly at the loudest input volume.
Use of the [TRANSFORMER] switch
ON (lit)
Passing the input signal through the transformer circuit
results in sound with natural compression and saturation.
OFF (unlit)
This setting results in a well-balanced sound that is faithful
to the original, which is the feature of D-PRE.










