Making Connections; Setting Input Levels - Boss RC-50 Workshop Manual

Making Connections

INST R(MONO) and INST L Inputs
The INST R(MONO) and INST L input jacks accept
standard 1/4" audio connectors, and can accommodate
a wide variety of source signals. If you're using:
•
a single mono-output instrument or device—such as an electric guitar or
bass, a keyboard, or a mixer with a mono output, connect it to the INST
R(MONO) jack.
•
a stereo-output instrument or device—such as a multi-effects processor,
keyboard, or stereo mixer, connect its left and right outputs to both the
INST R(MONO) and INST L jacks.
MIC Input
The MIC input jack accepts an XLR connector,
and is designed for the connection of a balanced
microphone.
If you have a condenser-type microphone that requires +48 V phantom
power, it can be supplied from the MIC input's XLR jack. To enable phantom
power, set the PHANTOM 48V switch—located next to the MIC jack—to the
ON position.
Always turn the phantom power off when connecting any device
other than a condenser microphone that requires phantom power.
You risk causing damage if you mistakenly supply phantom power to
dynamic microphones, audio playback devices, or other devices that
don't require such power. Be sure to check the specifications of any
microphone you intend to use by referring to the manual that came
with it. (The RC-50's phantom power: 48 V DC, 10 mA Max.)
The MIC jack's XLR wiring arrangement is provided on a label next to
the jack.
AUX Input
The AUX input jack accepts stereo signals on a single 1/8"
TRS mini jack. This type of jack is also often found on the
headphone output of devices such as:
•
MP3 players.
•
MiniDisc players.
•
portable CD players.
•
laptop computers.
Connect the headphone output of one of these devices to the AUX jack
using a stereo cable with an 1/8" TRS connector on both ends.
If your device has a stereo output but uses a different type of jack (or
jacks), you can still connect it to the RC-50's AUX jack by acquiring the
appropriate cable or cable adaptor.

Setting Input Levels

The front-panel INPUT LEVEL knobs set the volume levels of signals entering
the RC-50. Each input—INST, MIC, and AUX—has its own knob. A PEAK
indicator lights when incoming audio reaches 6 dB below the level that
causes distortion. The settings made here determine the level of the audio
that's recorded in the RC-50's phrases.
After connecting your instrument, mic, etc. to the appropriate input(s), you'll
want to set the input signal level. For the best audio quality, the level should
be set as high as possible without causing distortion.