PreSonus DigiMax LT - Manual (Page 5)

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CONTROLS AND CONNECTIONS 2
2.1 FRONT PANEL
dB
POWER
1
GAIN
0 60
-20 -10
PAD
+48V
CLIP
30
1
SAMPLE RATE EXT CLOCK
32k 44.1k 48k
GAIN
0 60
-20 -10
PAD
+48V
CLIP
30
2
GAIN
0 60
-20 -10
PAD
+48V
CLIP
30
3
GAIN
0 60
-20 -10
PAD
+48V
CLIP
30
4
GAIN
0 60
-20 -10
PAD
+48V
CLIP
30
5
GAIN
0 60
-20 -10
PAD
+48V
CLIP
30
6
GAIN
0 60
-20 -10
PAD
+48V
CLIP
30
7
GAIN
0 60
-20 -10
PAD
+48V
CLIP
30
8
dB dB dB dB dB dB dB
Notice that the front panel is divided into eight preamplifier sections, sample
rate selector with indicators and external clock switch.
+48V
A switch labeled +48V is located next to each gain knob.
This switch may be engaged to provide phantom power for
condensor mics and any other device which may require
phantom power by way of the XLR input. This power is
supplied at a constant rate to allow use of all eight inputs
simultaneously, without any degradation of audio quality.
Pin 1 = GND, Pin 2 = +48V, Pin 3 = +48V
Gain Control
This knob provides 44dB of gain to the processed signal. The amplifier has
inherent gain of 10dB thus delivering a total gain possibility of 54dB.
-20dB Pad
A -20dB pad is available on each channel of the DigiMAX LT for reducing
incoming signal levels. Using this pad can provide a more manageable signal
from high output devices giving the operator greater control over the incoming
signal and a much reduced chance of over-driving the input, thereby avoiding
distortion.
The pad is available only for the XLR input on each channel. The pad does not
work for the line level inputs.
Channel LEDs
The three LEDs found on each channel are provided to serve different functions:
-20dBu - The LED farthest to the left is labeled -20 and serves to monitor
whether or not signal is present at the channel output.
-10dBu - The LED in the middle is labeled -10 and indicates a signal level
of -10dBU
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