Radial Engineering Ltd.
BT-Pro™ Bluetooth DI
True to the Music
®
4
CONNECTING TO THE AUDIO SYSTEM
Connecting the BT-Pro to your audio system is done using two XLR
cables. These XLRs can be connected to mic or line level inputs,
depending on the setting on the BT-Pro LEVEL control.
Once you make these connections, turn up the audio system. It is good
practice to always test at a low volume. Should you encounter hum or
buzz due to a ground loop, engage the Ground Lift switch to help alleviate
the problem.
Headphone output
It is important to note that there is a very loud
headphone output built into the BT-Pro that enables
professional grade, low sensitivity headphones to be
used. Make sure you always set the level completely
off (fully counter-clockwise) before using.
Left
Right
Audio connections for PA system and recording systems
use balanced XLR cables up to 100 meters (300’).
Headphone Safety Warning
Caution: Very Loud Amplifier
As with all products capable of producing high Sound Pressure Levels (SPL) users
must be very careful to avoid the hearing damage that may occur from prolonged
exposure. This is particularly important as it applies to headphones. Prolonged
listening at high SPLs will eventually cause tinnitus and can lead to partial or
complete loss of hearing. The user agrees that Radial Engineering Ltd. remains
harmless from any health effects resulting from the use of this product and the user
clearly understands that he or she is entirely responsible for the safe and proper use
of this product. Please consult the Radial Limited Warranty for further details.
Adjusting the level control on the BT-Pro will affect both the XLR and
headphone output. The intended use of the headphone output is for
testing purposes to ensure that signal is being properly received by
the BT-Pro. If you do not hear sound in the PA, signal presence at the
headphone output lets you know that the problem is likely not the BT-Pro
but may be another connection or that a piece of equipment needs to be
checked.
NOTE: The BT-Pro is capable of producing line-level signals, which
can easily overload the inputs of a microphone preamplifier. Always
start with the LEVEL control turned all the way down before testing
playback. When connecting to mic inputs on your console or interface
it is normal to have the BT-Pro LEVEL control set between 9 o’clock
and 12 o’clock.
