Introduction - Alto L-12 Service Manual

1. Introduction

ALTO L12,L16,L20 FEATURES
CHANNEL STRIPS.
AUX send 1/2 switch-able to PRE/POST fader
60 mm high precision faders
Each input channel with Mute, SOLO function, low cut filters-75Hz, 18 dB/OCT and Overload
& signal present LEDs.
Group "SUB" 1-2", "SUB3-4", or "main L-R" mix send switch-able
4 AUX sends with master control and SOLO function per channel: 2 × PRE/POST fader
switch-able for monitoring/digital EFX application, 2 × post fader(for internal digital EFX or
as external send)
4-band fixed EQ on stereo line channels
3-band EQ with Swept mid on microphone channels
Channel inserts and direct output on each mono channel plus main mix inserts for flexible
connection of outboard equipment.
MASTER SECTION
24-bit DSP effect built in
True stereo 9-band graphic EQ
Adjustable mono main output by control level
BNC socket for connecting gooseneck lamps.
Separate outputs for 4 submaster control to enable more flexible routing
Separate subwoofer crossover and output
Special XLR Subwoofer out with 75Hz low pass
Control room/phone matrix
2 headphone outputs
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