PreSonus DigiMax LT - Manual (Page 8)

3 OPERATIONS
3.1 DYNAMIC MICROPHONES
Dynamic microphones are characterized by lower output levels. Hence, more
gain is needed to amplify a dynamic microphone to operating level. Occasionally
it is necessary to add the -20dB pad to the microphone to avoid distortion (e.g.
when recording percussion).
Do not use phantom power when using dynamic microphones.
3.2 PHANTOM POWERED MICROPHONES
Phantom powered microphones such as condenser and some ribbon micro-
phones require external power to preamplify the microphone acoustic pickup.
These microphones typically have much higher output than dynamic micro-
phones. Hence the -20dB pad is almost always necessary when close micing to
avoid clipping the amplifier.
3.3 LINE LEVEL INPUTS
The 1⁄4” inputs on the DigiMAX LT are designed for use with line level or low
impedance inputs not instrument level inputs. These inputs will work for line
level devices such as keyboards, samplers, drum machines, CD players, etc.
3.4 APPLICATION GUIDE
Outboard Dynamics Processing Example
The DigiMAX LT has an insert on every channel that allows you to insert your
own dynamics processor, such as a compressor, EQ, limiter, or etc. To do this,
all you need is your dynamics processor and a TRS insert cable. This cable is Y-
shaped, has a single TRS 1⁄4” jack on one end and two 1⁄4” TS jacks on the other
end. The single end will look like a stereo 1⁄4” connector jack. This end of the
cable plugs into the insert jack on the back of the DigiMAX LT. The other ends
of the cable plug into the input and output of the outboard unit. If the outboard
unit does not work immediately, you may want to try swapping the jacks that
are plugged into the input and output of the outboard unit.
Insert Jacks As Analog Outputs Example 1
You may have noticed by now that the DigiMAX LT does
not have a standard analog output. In the event that you
want to have analog outputs as well as the lightpipe output,
you can use the inserts as analog outputs. To do this, all
you need is a 1⁄4” TS cable. Plug the cable in until you feel
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