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Panel Descriptions
Rubix24
Front Panel
1
2
3
4
[SENS 1L] knob, [SENS 2R] knob
1
Adjust the volume of the audio signal that is input via the
INPUT (1L, 2R) jacks.
Level indicator
2
The indicator is lit green if an audio signal greater than -24 dB (*) is
being input to the INPUT (1L, 2R) jacks. If the input level is -3 dB (*)
or higher, the indicator is lit red. If the indicator is lit red, use the
[SENS 1L] knob and [SENS 2R] knob to adjust the input level.
* The level relative to the maximum allowable input (0 dB)
3
INPUT (1L, 2R) connectors (combo jacks)
These are analog audio input jacks with microphone preamps. They
accommodate both XLR connectors and 1/4-inch phone type jacks,
and support both balanced and unbalanced connections.
TRS phone
Phone type plug
(unbalanced)
(balanced)
INPUT (1L, 2R)
connectors
XLR connector
Phone type plug
MEMO
5 To prevent malfunction and equipment failure, always turn
down the volume, and turn off all the units before making
any connections.
5 Pin assignment of INPUT connector/jack
1: GND
2: HOT
3: COLD
4
2
1
5
XLR
connector
(balanced)
type plug
Input sensitivity
-60– -12dBu
-44–+4dBu
GND (SLEEVE)
HOT (TIP)
COLD (RING)
5 Set the [Hi-Z] button (p. 4) and [48V] button (p. 4) as
appropriate for the audio device that is connected.
5 Use a microphone with an XLR connector.
The sound level will be very low if you use a
microphone with a phone type plug.
5 When connecting a guitar or bass, use the
INPUT 1L jack. The sound level will be very low
if you connect directly to the INPUT 2R jack.
4
[Hi-Z] button
Determines the impedance of the INPUT 1L jack.
You can select high impedance (Hi-Z) or low impedance (Lo-Z) as
appropriate for the connected equipment.
[Hi-Z] button
Equipment connected to the INPUT 1L jack
Lit (Hi-Z)
Guitar or bass
Unlit (Lo-Z)
Other equipment (such as synthesizers)
[48V] button
5
Determines whether the Rubix24 supplies phantom power to the
XLR connectors of the INPUT (1L, 2R) jacks.
[48V] button
Connected equipment
Condenser microphone that requires phantom
power
Lit
* Phantom power supplied by this unit: DC 48 V;
maximum 6 mA. (current value per channel)
Unlit
Other equipment
NOTE
5 You must leave the [48V] button set to
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 damage the equipment. For details on the
requirements of your microphone, refer to its owner's
manual.
5 Minimize the volume before you turn phantom power on
or off. Even if the volume is minimized, turning phantom
power on/off might make a sound, but this is not a
malfunction.
"OFF"
unless
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