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General| Brand | Alto |
|---|---|
| Model | L-12 |
| Category | Music Mixer |
| Language | English |
Introduction to the L-12 12-Channel Compact Integrated Live Sound Mixer with Digital Effects.
Explanation of safety symbols and critical warnings for user protection.
Key guidelines and precautions for safe operation and maintenance.
Message from ALTO AUDIO TEAM about the L-12 and company ethos.
Overview of the L-12 mixer's capabilities and suitability for live gigs, recording, and PA.
Detailed enumeration of the L-12's extensive features and specifications.
Essential steps and precautions before powering on and connecting the L-12 mixer.
Diagram and labeling of all controls on the mixer's front panel.
Details on mono channels 1-4, including connections, gain, insert, and low-cut filter.
How to set input levels, use insert points, and engage the low-cut filter.
Details on stereo inputs and the operation of mono/stereo EQ bands.
Explanation of EQ, AUX send, PAN, SG/PEAK, and MUTE controls per channel.
Function of channel faders and assignment buttons to subgroups/main mix.
Controls for Source selection, Control Room, and Phones output levels.
Controls for master AUX send levels and stereo aux return levels.
Details on routing AUX RETURN signals and using the MAIN MIX - CTRL/R button.
Controls for assigning signals to subgroups and the main mix, including subgroup faders.
Explanation of LED meters, 2TK to MIX, and SOLO mode selection.
Controls for selecting presets, variations, muting, and managing digital effects.
Operation of the stereo graphic EQ and indicators like POWER and PHANTOM LEDs.
Description of 2-TRACK, LAMP, PHONES, POWER, PHANTOM, and AC INLET connectors.
Details on Main Mix output sockets, level adjustment, and insert points.
Explanation of Mono Output, CTRL OUT, and DFX OUT sockets.
Description of AUX SENDs, AUX RETURNS, DIRECT OUTS, and SUBGROUPS OUT connections.
Functionality and connection of subgroup insert points.
Step-by-step guide for setting up and operating each input channel for optimal performance.
Schematics for connecting unbalanced equipment using 1/4" TRS and TS jack plugs.
Wiring diagrams for 3-pin XLR male plugs and sockets for balanced and unbalanced use.
Wiring for 'Tapped' direct output leads and Y-stereo leads for insert connections.
Lists VOCAL1 and VOCAL2 effect presets with detailed parameters.
Lists LARGE HALL and SMALL HALL effect presets with parameters.
Lists SMALL HALL and LARGE ROOM effect presets with parameters.
Lists PLATE effect presets with parameters.
Lists SMALL ROOM effect presets with parameters.
Lists PLATE and TAPE REVERB effect presets with parameters.
Lists TAPE REVERB and SPRING REVERB effect presets.
Parameters for MONO DELAY effects.
Parameters for STEREO DELAY effects.
Parameters for FLANGER and CHORUS effects.
Parameters for REVERB+DELAY effect combinations.
Parameters for REVERB+FLANGER effect combinations.
Parameters for REVERB+CHORUS effect combinations.
Detailed block diagram illustrating the internal signal paths and component interactions.
Technical data for mono and stereo input channels, including frequency response, SNR, and impedance.
Details on EQ bands, DSP capabilities, effects types, and presets.
Specifications for the main mix output, noise, and overall performance.
Information on power supply voltage, consumption, fuse, dimensions, and weight.
Instructions for warranty registration and returning the product for service.
Details regarding warranty coverage, limitations, and consumer rights.
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