A 500 Series version of the MP1A, the Tonelux MP5A
is a discrete mic preamp with a direct input on the front panel. The
mic in is transformer coupled in and out, and has a 20 dB PAD switch
(effects both Mic and Direct), a 48V Phantom switch and a Phase or
Polarity switch. The Pad and Polarity switches effect both inputs.
Identical to the MP1, but with the addition of an output fader to
control the record level of the Mic Pre Output. The inner, or larger
(silver) knob sets the mic pre gain and the outer smaller (black) knob
controls the output level. We chose the fader control for the outer knob
so the gain knob, once set, won't be bumped when adjusting the output
level.
The 8 segment LED VU meter follows the balanced output of the preamp.
The level of the VU meter is adjustable over the entire range from off
to +28. The Peak led is set at +14VU or +18 dBu and can grab a fast peak
and display it. With the "a" version, an internal jumper selects the
Mic Pre Main Output or the Mic Pre Gain Stage signal to feed the VU
Meter. This allows the engineer to monitor the real mic pre gain or the
output level of the MP1a. When monitoring the Mic Pre Gain, the meter
shows the actual gain stage level, and is not effected by the output
fader.
The Combo XLR/Direct input is for use with a hi-z instrument, etc. The
Tilt tone control works with both the Mic in and Direct in and has it's
own "Tilt EQ In" switch, which is a hard wire bypass switch when out.
When turned up, the tilt control has a 0 to 6 dB boost on the high end
while cutting the low end the same. If it is turned down, tilt will
boost the low end up to 6 dB and cut the high end up to 6 dB.
The front panel XLR is multed to the rear panel XLR and that is also
multed to the D-Sub "Input" on the rear of the V-Rack. The "Insert
Return" input of the V-Rack is a resistor isolated mic level input, that
can be used when the MP1 is in a live recording situation and there is
no splitter. It will bridge the mic line with 10X the impedance to
minimize loading of the microphone.
