manufacturer’s manual or instructions. The inclusion of a phantom power supply may
cause permanent damage to the ribbon microphone!
An LED status indicator will light up when the phantom power is engaged. It’s normal for
the LED to continue to light up for a short period of time after the phantom power has been
turned off.
Headphone volume control & connector
This rotary button is used to control the headphone volume independently from the master
volume. The headphone connector has been placed on the front of the interface for
convenience.
Master volume control
The master volume control is used to accurately set the volume level of your monitor
speakers. A ‘0 dB’ marker is included and turning the knob past the marked position will
trigger a certain amount of amplification. This may be necessary, possibly due to a low-
volume source signal, so be aware that there may be a small amount of overdrive present.
This occurs because this audio interface is not an amplifier but causes little to no hindrance
during day to day operation.
Mute button & monitor switch
The mute button is used to cancel the transferring of sound signals to your monitor
speakers. This could come in handy for conversations or phone calls during playback as
you can leave the volume as is.
Use the monitor switch to enable direct monitoring. If turned off, neither of the input
channels provide any direct signals to the headphones.
Switch to ‘Direct’ to send channel 1 signals to the left and channel 2 signals to the right.
This enables you to monitor both source signals independently of each other.
Switch to ‘Mix’ to send both source signals to the ‘mix’. The left and right signals are now
identical.
Please note, this functionality is only meant for direct monitoring. Use a DAW or other
suitable audio software to pan mono and stereo sources so the signals can be played back
via the right, left or centre.
Inputs & How to connect equipment (microphone, guitar, line signal)
The Centro 2i2o interface features two independant inputs that offer the same functionality
and are completely divided, making it possible to record all kinds of audio signals in optimal
quality. Choose a microphone signal for vocals and an electro-acoustic guitar, or record the
sound of a digital piano in stereo by using both inputs in-line. The possibilities are endless!
The interface is equipped with combi inputs. Thanks to their special design, both standard
XLR inputs and 6.35 mm jacks can be connected.
The informaton shown in this user manual is subject to change without further notice.
Version:
1.0
Date of creation and author's initials:
24-10-2019 RV
Date of revision and author's initials: -