User Guide

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9
CONNECTIONS
Despite the Tube MP Studio’s sophistication, it is easy to interface the unit
with a wide variety of equipment. All inputs and outputs, are located on the
rear panel. Standard ¼” and XLR inputs and outputs make patching simple.
¼” INPUT JACK
The ¼” Input jack is for instrument and line level inputs. It has a high
input impedance to minimize any loading effects on instrument
pickups. It can also handle up to +22 dBu signals for line level signals.
Though not normally suggested, both input jacks can be used
simultaneously, in a pinch, to sum two signals. The signal present at
the XLR jack will tend to attenuate the signal of the ¼” input.
XLR INPUT JACK
The XLR Input jack is primarily intended for microphone input, and as
such can furnish Phantom Power when needed. It can handle up to
+14 dBu signals, which is the hottest signal you would get out of any
microphone. For even hotter input signals, you should use the ¼” input
jack. The XLR Input jacks medium input impedance is extremely flat
over a wide frequency range, which allows it to be musically neutral to
virtually any microphone (one of the Tube MP's lesser known secrets).
XLR OUTPUT JACK
The XLR Output jack of the Tube MP Studio is active balanced. You
may use it in an unbalanced configuration without harm to the output
circuitry. The XLR output can provide a hefty signal level (+28dBu) at a
low impedance, so make sure that you do not overdrive equipment
with sensitive inputs. When using it on the front end of a mixer, go into
the mixer’s line in or insert inputs and not necessarily into the mixer’s
microphone input, unless the mixer can pad that input’s level.