SHOWBOX BATTERY POWERED ALL-IN-ONE PERFORMANCE RIG WITH BREAKAWAY MIX CONTROL
9
XLR Mic Input Jacks [Channels 1 and 3]
These mono female XLR connectors accept a balanced mic or line level input from almost any type of source.
These mic preamps feature higher fidelity and headroom rivaling any standalone mic preamp on the market today.
These circuits are excellent at rejecting hum and noise.
Professional ribbon, dynamic, and condenser mics all sound excellent through these inputs. The mic / line inputs will handle
any kind of level you can toss at them, without overloading.
The gain should be set to the hottest value possible without clipping or distorting the incoming signal. This can be achieved
automatically by using the auto gain feature. More information regarding auto gain may be found on pages 19-20.
They are wired as follows, according to standards specified by the AES (Audio Engineering Society).
XLR Balanced Wiring:
Pin 1 = Shield (ground)
Pin 2 = Positive (+ or hot)
Pin 3 = Negative (– or cold)
NEVER connect the output of an amplifier directly to a ShowBox’s input jack.
This could damage the input circuitry and we wouldn’t want that now, would we?
1/4" Input Jacks [Channels 2 and 4]
Channels 2 and 4 may accept 1/4" instrument level sources. These inputs will always be Hi-Z inputs that utilize DSP for auto
gain. Once a cable is plugged into an input, auto gain is used to set the appropriate gain value for the incoming signal.
The gain should be set to the hottest value possible without clipping or distorting the incoming signal. This can be achieved
automatically by using the auto gain feature. More information regarding auto gain may be found on pages 19-20.
To connect balanced lines to these inputs, use a 1/4" Tip-Ring-Sleeve (TRS) plug. “TRS” stands for Tip-Ring-Sleeve, the three
connection points available on a stereo 1/4" or balanced phone jack or plug. TRS jacks and plugs are used for balanced signals
and are wired as follows:
1/4" TRS Balanced Mono Wiring:
Sleeve = Shield
Tip = Hot (+)
Ring = Cold (–)
2
3
1
SHIELD
COLD
HOT
SHIELD
COLD
HOT
3
2
1
SLEEVE
TIP
SLEEVE
TIP
RING
RING
TIP
SLEEVE
RING
