Introduction - Alto Dragonfly PM-12 Service Manual

1. Introduction

Thank you very much for expressing your confidence in ▲LTO products by purchasing ▲LTO
PM-12/16 Dragonfly multi-Channel Mixing Console with Digital Effects. The PM-12/16 are
professional compact mixer, which provides the state of the art switching power and advanced
digital amplifier technology specifically. You will get the smooth, accurate more natural and open
sound from this apparatus, it is really ideal for large gigs, recording and fixed PA installations.
The PM-12/16 Dragonfly multi-Channel Mixing Console with Digital Effects are packed with some
key features that can not be found in other consoles of its size: mono (these are provided with
ultra low is provided with warm, natural EQ (mono channels are equipped with 3-band MID
sweep EQ; stereo channels are equipped with 4-band fixed frequency EQ); 24 bits digital stereo
effect processor with 256 presets (16 presets × 16 variations); built-in digital power amplifier;
highly accurate 12-segment bar graph meters; subgroups output ets...
Dragonfly digital amplifier technology, offering high power and a very dynamic sound.
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Extremely high efficiency means the amplifier is so compact that the console is no larger
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and barely and heavier than an equivalent passive console.
Built-in the state of the art switching power.
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MIC input channels with gold plated XLRs and balanced LINE inputs.
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Stereo input channels with balanced TRS jacks.
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Ultra-low noise discrete MIC preamps with +48V phantom power.
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Extremely high headroom offering more dynamic range
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60mm high precision faders.
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Each input channel with Mute, SOLO function, overload & signal present LEDs and low cut
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filters(except for stereo channel).
SUB1-2, SUB3-4 and MAIN L-R signal assignment switch.
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4 AUX sends per channel: 2 PRE/POST faders switch-able for monitoring application effects
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& sound processor input; 2POST faders for internal digital DFX or as external send.
4-band fixed EQ on stereo line channels.
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3-band EQ with swept mid on microphone channels.
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Channel inserts on each mono channel plus main mix insert for flexible connection of
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outboard equipment.
24-bit digital stereo effect processor with 256 effects(16 presets× 16 variations)
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Stereo 9-band graphic EQ.
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TNC socket for connecting lamp.
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Control room/phones matrix.
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2-track recording IN/OUT
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Highly accurate 12 segment output level meters.
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2× 300W(4Ω)
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6.3ψ jack + 4 way speaker
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