LA Audio MPX10 - Manual (Page 22)

Page 22
5.0 APPLICATIONS
Using the MPX10 to record direct to tape, rather than through a mixing
console and associated cabling, will result in a cleaner, less cluttered
recorded sound which has more definition.
5 . 1 I N P U T
The Microphone input is optimised for low impedance microphones (600
types) however the low gain settings available allow plenty of headroom for
high output capacitor and condenser mics.
+ +
If you intend using +48V Phantom Power please observe
the warning in the Description of Controls section, +48V
switch.
The Line input can provide gain (up to 20dB, x10) or attenuation (up to -
10dB, ÷3) making it ideal as a level matching device. Conversion between
+4dBu and -10dBV levels is easily achieved by using the Line input, setting
the GAIN to '0' and using the appropriate output connector. Or use the
+4dBu output (XLR) and adjust the OUTPUT level for -10dBV (-8dBu)
output.
The DI input, on the rear of the unit, is a high impedance (0.5M ) input for
electric guitars, basses and other instruments with passive pickups. The
high input impedance uses an FET device to ensure that the instruments
pickups are not loaded thus preserving the instruments tonal quality and
signal level. The DI gain range is designed to cope with the high output of
'active' basses.
If your mixing console doesn't have a instrument input use the DI on the
MPX10 and patch into the line input on the console. Use the 'Output'
connector on the rear panel as a line level DI output into your console line
input. This 'Output' can also be used as a 'split' output for parallel console
feeds etc.
5 . 2 C O M P R E S S O R
A compressor works by applying increasing levels of attenuation
(compression) to signals which exceed a set volume level. The level above
which the compression occurs is called the Threshold and the amount by
which the signal is compressed is governed by the Ratio. So for example -
With an input signal at nominal level ( '0' led on the output meter), Threshold
set to -10dB and Ratio set to 2:1, the signal will be compressed by 5dB.