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Alto PS 4 LA EVO - Introduction; Speaker Module Function and Features

Alto PS 4 LA EVO
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The PS 4/5LA EVO Plastic Speaker Cabinet is designed for professional stage performance. It adopts Italian
design style on the handle. PS 4AL EVO contains a woofer (12” 4ȍ110-220W) and tweeter (15W 8ȍ), while
the PS 5LA EVO has built-in woofer (15” 4ȍ150-300W) and the tweeter (15-30W 8ȍ). This plastic cabinet
features clear tone and thick bass to reproduce clean timbre. (PS 4LA EVO & PS 5LA EVO LOW Output
Power200Watt Class AB / HIGH Output Power 50Watt Class AB), which guarantees its availability in any
applications.
Function & Features of speaker module
PS 4LA / 5LA EVO speaker module is designed for matching the PS series plastic speaker cabinet. The
built-in precision electronic crossover separates the HF signal and the LF signal within PRE-AMP before
discrete power amplification so as to exactly reproduce the original sound. The rated power output of bass
power amplifier is RMS 200W at 4ȍ and that of the treble power amplifier is RMS 50W at 8ȍ. If increase the
output power based on unchanged cost of PS 4LA & PS 5LA, the main features are as follows:
1 input volume control knob
1 group of Input Combo jack
1 group of balanced chain output
Clipping LED indicator present input signal strength
Overload and overheat protection
1. Introduction
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