MTX LOLITA Owner's Manual page 4

CONGRATULATIONS...
.
.. 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.
Your subwoofer is a high value product built using the latest materials, technology, and equipment by
MTX, a vertically integrated company. Once set-up and properly adjusted, it should give you many years of
entertainment pleasure. Thank you for selecting MTX in making your audio equipment purchase.
INTRODUCTION
:
Your new subwoofer has many features which help to deliver its great bass performance and make it a
remarkable value in home theater products.
* High efficiency amplifier:
Your home subwoofer utilizes a modern class A/B amplifier circuit to produce high power with a minimum
of heat.
* 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. Special low
noise vents are used for less distortion at the bottom of the frequency range.
* Shallow Height:
Your LOLITA subwoofer is short in height to allow it to fit under tables, beds and other furniture. You can
hide LOLITA out of sight and still enjoy subwoofer sound.
* Side Mount Speaker Stands:
You may wish to turn your LOLITA subwoofer on one of its sides to place it between furniture and a wall.
A pair of stands are provided for this purpose. These stands protect the cabinet exterior from scratching
and prevents LOLITA from falling over.
UNPACKING:
Unpack your new subwoofer carefully, keeping the carton and packing material for future use. Check the
condition of your unit, reporting any damage which may have occurred in transit to your dealer or shipping
company.
GLOSSARY:
The following list of terms with their definitions is offered as a help in understanding the set-up and operation
of your subwoofer.
Crossover - an electrical filter with low-pass or high-pass characteristics that divides the frequency range into
bands of low, middle, or high frequencies to match the capabilities of specialized loudspeakers like subwoofers
that are only effective at reproducing limited frequency ranges. The crossover frequency is the frequency
where the filter begins to attenuate or reduce the level of the signal.
Full range - refers to signals which cover the entire audio frequency span from 20 Hz to 20 kHz.
High-pass - a type of filter circuit that allows high frequencies to pass, while reducing the level of low
frequencies with the transition from high to low occurring at the crossover frequency. The rate of reduction of
the signal is called the attenuation rate or slope and is measured in decibels (dB) over a change in frequency
of one octave which is a doubling or halving of frequency.
Impedance - the resistance to the flow of current in an alternating current circuit (such as with music). Line
level circuits are typically a high impedance of several thousand ohms, while speaker level circuits are usually
a low impedance of a few ohms.
Line level - the type of signal produced at the outputs of preamplifiers, tape decks, CD players, etc., with a
typical value of a volt or less in a high impedance circuit. Sometimes called low level signals, they are routed
using shielded cables which are usually terminated with RCA connectors.
Low-pass - a type of filter circuit that allows low frequencies to pass, while reducing the level of high
frequencies with the transition from low to high occurring at the crossover frequency.
Speaker level - the type of signal produced at the outputs of power amplifiers that may be many volts in a
low impedance circuit. Sometimes called high level signals, they are routed using two conductor wire of 18
gauge or larger.
3
B) À utiliser avec les récepteurs et les préamplificateurs audiovisuels qui présentent des sorties de
niveau ligne de canal 5.1
Si le préamplificateur ou le récepteur présente une seule sortie « subwoofer » ou une sortie « LFE », raccorder
un câble blindé de la sortie du préamplificateur à l'une des entrées de niveau de ligne du subwoofer. Si besoin
est, utiliser l'un des adaptateurs RCA à angle droit fournis pour dégager de la place pour les câbles. Voir la
figure E.
preamplificateur
sorties
sub
Figure E
28