Introduction, Set-up and adjustment – MTX Audio SW1515 User Manual

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... on your purchase of a MTX powered home subwoofer system. Your new

subwoofer is one of the most exciting home entertainment electronic products

available, adding impact and realism to recorded music and the wide variety of

movies to be found on videotape, laser disc, DVD and off-the-air broadcasts.

Once set-up and properly adjusted, it should give you many years of

entertainment pleasure.

Your subwoofer is a high value product built in America using the latest materials,

technology, and equipment by MTX, a vertically integrated company.

Thank you for selecting MTX in making your audio equipment purchase.

INTRODUCTION

Your new subwoofer has many features which help to deliver great bass

performance and make it a remarkable value.

* High efficiency amplifier:

The SW1010, SW1212 (class A/B) and SW1515 ( class D) represent the latest

amplifier technology with active compression circuits for higher SPL without

breakup during high amplitude peaks.

* Versatile hook-up and operation:

Your new subwoofer has a variety of input and output connections that make it

easy to set-up and use in almost any stereo or home theatre system.

* Low distortion woofers:

Each woofer uses an overhung voice coil and large excursion suspension to

produce higher sound pressure levels with lower distortion.

* Optimal enclosures:

Each enclosure is designed to match the parameters of its woofer to maximize

performance. Passive radiators are used for less distortion at the bottom of

the frequency range.

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SET-UP AND ADJUSTMENT

After you have selected an initial location for your subwoofer and have connected

it into your system, have a seat in your normal listening position and have

someone help you with the following adjustments:

A) If you are using the line level inputs and your main speakers are receiving

a full range signal, set the subwoofer crossover frequency control to its full

counterclockwise position.

B) Set the polarity switch to the “normal” position and the level control to the full

counterclockwise position at “minimum”.

C) Turn off the loudness control and set the bass tone control on your main

amplifier to the flat position.

D) Use familiar program material that has substantial bass content and play your

main system at a moderate volume level.

E) Slowly rotate the subwoofer level control clockwise until a good balance is

achieved between the low frequency output of your subwoofer and the mid bass

and upper frequencies from your main speakers.

F) Slowly rotate the subwoofer crossover frequency control clockwise to attain

the best blend between the level of the subwoofer and the main speakers in the

midbass crossover region. Advancing the control too far will cause a “boominess”

in the overall sound and will add an unnatural “chesty” quality to male voices

G) Change the polarity switch from “normal” to “reverse” to determine which

position results in the most overall bass output. Leave the switch in the position

that gives the highest output level.

CONGRATULATION...

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