User Manual

English
17
13 Troubleshooting
Sound is distorted.
You’re probably overloading the input. Check that the input gain on iRig Pro Quattro I/O is set properly. If the
Audio Level LED is red when you play your instrument or sing or talk into a mic, decrease the input gain as
described in this guide.
I don’t get any sound.
In order for iRig Pro Quattro I/O to turn on, a Core Audio-compatible audio app must first be launched on your
iOS device or Mac.
iOS: be sure you are using an app that works with audio input from the Lightning dock connector.
Mac: be sure you have set “iRig Pro Quattro IO” as the audio or MIDI input device on the audio app you are
using.
I can’t get any sound from my condenser microphone.
Your microphone may need phantom power. Turn phantom power on by moving the iRig Pro Quattro I/O switch
to the ON position and check that the Phantom LED has turned on.
Output level is low.
iRig Pro Quattro I/O’s outputs level can be controlled both with on-board volume knobs (headphones and line
out) and connected host volume’s control.
When I connect iRig Pro Quattro I/O to my computer or Android device I get a message that says that
this device needs more power and the USB port will be disabled. How can I use my iRig Pro Quattro I/O
on my host device?
This means your USB host device is not capable of providing the necessary current. Please install four AA
batteries, or use an external power supply (DC IN or micro-USB) in iRig Pro Quattro I/O in order to use it with
this USB host.
I have connected iRig Pro Quattro I/O to my iPhone or iPad but it doesn’t turn ON.
iRig Pro Quattro I/O only works with AA batteries, DC IN or micro-USB power supply when connected to iOS
devices.
I use iRig Pro Quattro I/O onstage and get buzzes and noises when connected to a PA system or main
mixer.
Always connect iRig Pro Quattro I/O outputs with balanced XLR cables to balanced line inputs. This way your
signal will always be perfectly clear.