MACH M42i Series In Fill Speaker User Manual

: June 16, 2024
: MACH

Table of Contents

INTRODUCTION
INSTALLATION
OPERATION
TECHNICAL DATA
References
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MACH M42i Series In Fill Speaker User Manual

INTRODUCTION

DESIGN APPLICATIONS
The in-fill speakers for the Mach installation series have been designed for commercial venues such as cafés, clubs, department stores, conference rooms, and hotels, that require high-fidelity in-fill sound. The goal of the in-fill speaker design is to provide true hi-fi performance with high speech intelligibility in a compact package. As background noise in these venues is typically located in the mid-frequency area, the in-fill speakers are acoustically optimized for clarity and openness in the mid-range. The M42i and M62i are top-boxes that can be supported by the M208i sub-woofer or the bass output of the venue’s main PA system. The M208i is a stereo subwoofer with an integrated high-pass filter that enables the sub and two top-boxes to be powered by one amplifier. It has been made as compact as possible using the bandpass principle, which maximizes the output-to-size ratio. The M68i is a full-range speaker with usable bass-output down to 60 Hz; it can be used as a stand-alone box without subwoofer support. All Mach in-fill top-boxes have wide, even dispersion that ensures good coverage in low ceiling applications.

FEATURES

Thermal protection circuit on all tweeters
Magnetic shielding on all woofers
100° x 100° dispersion
UV-stable cabinet and drive units
Custom brackets
Subwoofer with integrated 160 Hz crossover
High quality European drive units

INSTALLATION

HANGING BRACKETS
Custom brackets with horizontal and vertical tilt are available for all top- boxes.

Black hanging bracket for M42i/M62i ……………………………………………………P/N 93943001
White hanging bracket for M42i/M62i……………………………………………………P/N 93943002
Special multi bracket for M68i ………………………………………………………………P/N 93943006

The MIW62 comes with a mounting bracket for ceilings as illustrated below.

CONNECTIONS
Always use high quality speaker cable for the best sound quality and system performance. All in-fill models are easily connected using push terminals. For correct polarity, connect the red (+) terminal on the amplifier to the red terminal on the speaker. Likewise, connect the black (-) terminal on the amplifier to the black terminal on the speaker. If one speaker is connected with reverse polarity, the result is a strong decrease in bass output and lack of focus in the mid/high frequencies. If supporting the in-fill top-boxes with the M208i subwoofer, connect the high-pass output on the M208i to the top-box input. Connect only one pair of top-boxes to the subwoofer output. Important! Do not connect the subwoofer high-pass output to the amplifier
output: this will cause damage to the amplifier.

MIW62 INSTALLATION
As a rule of thumb, correct coverage is obtained by spacing MIW62’s at a distance similar to the height of the room. With the 100V module included, the output of the speaker can be controlled individually by connecting it to the – (minus) terminal and to one of the output options shown below:

The cut-out dimensions for MIW62 are 278 x 190 mm (11″ x 7½”). The minimum depth required is 80 mm (3.15″) without the 100V module and 100 mm (4″) with 100V module.

OPERATION

TWEETER PROTECTION
The tweeters are protected by a thermal protection circuit that increases impedance when the current exceeds a safe level. The increased impedance reduces current to the tweeter, thus protecting it against damage. The audible result is a decrease in high-frequency output. If this happens, do not increase the high-frequency level on the EQ or tone control on the mixer: the tweeter has reached its maximum power handling capacity. If higher output is required, more or larger speakers are needed. When volume is decreased and current returns to a safe level, the protection circuit automatically restores full signal to the tweeter and the audio output returns to normal.