Channel 1/Channel 2 - YORKVILLE EXM 400 Owner's Manual

Input Channel Features
Channel 1
1. Input
Channel 1 is equipped with a phone/XLR combi jack, either balanced or unbalanced ¼-inch and
XLR male cables may be used. For powering condenser microphones, 24V of phantom power is
Min Max
present on the XLR input jack. Although the phantom power is not defeatable, it will not damage
dynamic microphones connected with a balanced XLR cable.
2. Input Select Button
The input select button is used to configure Channel 1 for either guitar or microphone. Individual
changes to the internal EQ, gain and limiting are made to match the input source selected.
In the event the input signal induces clipping, both sides of the input select button will illuminate
red. Reduce the output level at your source to prevent further clipping.
3. Level Control
Min Max
The EXM400 features active channel input circuitry with exceptionally high audio headroom. The
Level control adjusts the channel gain over an 85 dB range. Use this control to adjust the chan-
nel's level in the overall system mix.
Input 1
4. Tone Control
Channel 1 is equipped with a single tone control which functions as a tilt EQ. When centered,
the tone control is bypassed, allowing the signal to pass through the channel unaltered. Turn-
ing the control clockwise will increase treble and reduce bass. Going counter-clockwise, bass
will increase and treble will drop.
The tone control can be useful for enhancing the sound of your signal but it can also be handy for
taming feedback in microphones and guitars. If you are encountering high frequency feedback,
turn the control counter-clockwise. If low frequency feedback is occurring (as is common with
acoustic guitars), turn the control clockwise.
5. Reverb Control
A hall reverb is available on Channel 1 and 2. Use the reverb control to mix in some additional am-
biance to your signal. This often works well with guitar and vocals.
Channel 2
1. Input
Min Max
Channel 2 is equipped with a phone/XLR combi jack, either balanced or unbalanced ¼-inch and
XLR male cables may be used. For powering condenser microphones, 24V of phantom power is
present on the XLR input jack. Although the phantom is not defeatable, it will not damage dy-
namic microphones connected with a balanced XLR cable.
2. Input Select Button
The input select button is used to configure Channel 2 for either line level or microphone. Individu-
al changes to the internal EQ, gain and limiting are made to match the input source selected.
In the event the input signal induces clipping, both sides of the input select button will illuminate
Min Max
red. Reduce the output level at your source to prevent further clipping.
3. Level Control
Input 2 The EXM400 features active channel input circuitry with exceptionally high audio headroom. The Level
control adjusts the channel gain over an 85 dB range. Use this control to adjust the channel's level in
the overall system mix.
4. Tone Control
Channel 2 is equipped with a single tone control which functions as a tilt EQ. When centered,
the tone control is bypassed, allowing the signal to pass through the channel unaltered. Turn-
ing the control clockwise will increase treble and reduce bass. Going counter-clockwise, bass
will increase and treble will drop.
The tone control can be useful for enhancing the sound of your signal but it can also be handy for
taming feedback when using a microphone. If you are encountering high frequency feedback, turn
the control counter-clockwise. If low frequency feedback is occurring, turn the control clockwise.
2
EXM