Alto PA MONITOR PROCESSOR User Manual page 5

3. CONTROL ELEMENTS
5. INSTALLATION AND CONNECTION
Tip
Sleeve
Ring
Strain Clamp
Use for Insert Points
1/4" Stereo (TRS) Jack Plug
2
1
2=Hot(+)
1=Ground/Screen
3
3=Cold(-)
Use for Balanced Mic Inputs
(For unbalanced use, connect pin 1 to 3)
3-pin XLR Male Plug
(seen from soldering side)
SLEEVE TIP
TIP RING SLEEVE
SLEEVE RING TIP
TIP RING SLEEVE
TIP RING SLEEVE
Insert Leads
5.3 Rack Mounting
The most secure mounting is on a universal rack shelf available from various
rack manufacturers or your music dealer. The
fits into one standard 19" rack unit of space. Be sure that there is enough
air space around the unit for sufficient ventilation and please do not place
the LTO Monitor PA/Monitor Processor on high temperature devices such
as power amplifiers etc. to avoid overheating.
6
Ring=Return Signal
Tip=Send Signal
Sleeve=Ground/Screen
2
1
2=Hot(+)
1=Ground/Screen
3
3=Cold(-)
Use for Main output
(For unbalanced use, leave pin3 unconnected)
3-pin XLR Line Socket
(seen from soldering side)
Tip
Ring
Sleeve
Tip
Ring
Sleeve
Tip
Ring
Sleeve
LTO PA Monitor Processor
8 FREQUENCY Control
Through this control, you can select the frequency that you want to cut off, the
adjustable range goes from 15 Hz to 360 Hz.
9 INVERTER Switch
Engage this switch to reverse the audio signal's phase by 180 . In this case, it
may alter the audio phase to compensate for phase cancellation. The next LED
will display whether the function is active or not.
10 MODE Switch (LOW-CUT Filter Section)
Engage this switch to insert the Low-Cut filter into signal path, and the next
LED (green) will illuminate. When this switch is in bypass mode, the Low-Cut
filter will be bypassed.
11 MODE Switch (NOTCH Filter Section)
By engaging this switch, you will insert the Notch filter into the signal path,
and the next LED (green) will illuminate. When this switch is in bypass mode,
the Notch filter will be bypassed.
12 1/ 10 Selection Switch
This switch is used to change the selected range of the frequency. Engage the
switch ( 1), the adjustable frequency range goes from 40 Hz~400 Hz (Notch1)
or 200 Hz~2k Hz (Notch2), and the next LED will illuminate. Otherwise, engage
Tip (Send)
the switch ( 10), and the adjustable frequency range goes from 400 Hz~4k Hz
Sleeve
Tip (Return) (Notch1) or 2k Hz~20k Hz (Notch2).
Sleeve
13 FREQUENCY Control (Notch Filter Section)
1
2 (Send)
3
This control provides two frequency ranges. For the details, please refer to the
1
2 (Return) above. Rotate this knob to control the howling resonance frequency response
3
at room.
Centre (Send)
Screen
14 DEPTH Control
Centre (Return)
Screen
Rotate this control to adjust the variation, which can be varied from 0 dB to
-20 dB.
15 MASTER VOL. Control
Rotate this knob to attenuate or boost the output level, which can be varied
from -
16 OUTPUT LEVEL Meter
The meter displays the output level, and the range is from -24 dB to +18 dB.
3. CONTROL ELEMENTS
3. CONTROL ELEMENTS
to +6 dB.
3