BBE MAX-X2 [5/12] Getting started

BBE MAX-X2 [5/12] Getting started
INTRODUCTION
Congratulations and thank you for your purchase of the BBE Max-X2. You have acquired an extremely simple to
use and universal stereo crossover with an integral BBE® Sonic Maximizer™.
Getting Started
READ BEFORE USING
Before starting to use the crossover in your sound system there is some information you should know and pro-
cedures you should follow.
Caution : To prevent malfunctioning and/or possible equipment damage: Before plug-
ging the unit into the power source: (1) the voltage selector switch should be set for
the correct voltage for your area (115V or 230V) and (2) all equipment connected to
the crossover outputs should be turned off or all the inputs turned down.
FEATURE LIST
• Single rack unit (1U)
• Robust and compact design
• XLR inputs and 1/4” inputs/outputs.
• Designed for the most precise accurate control
• Top audio performances with high slew rate circuity
• Over than 115dB dynamic range for transparent sound
• Manufactured Under ISO9001 Certied management system
SONIC MAXIMIZER
Loudspeakers have difculty working with the electronic signals supplied by an amplier. These difculties
cause such major phase and amplitude distortion that the sound reproduced by speaker differs signicantly
from the sound produced by the original source.
In the past, these problems proved unsolvable and were thus delegated to a position of secondary importance
in audio system design. However, phase and amplitude integrity is essential to accurate sound reproduction.
Research shows that the information which the listener translates into the recognizable characteristics of a live
performance are intimately tied into complex time and amplitude relationships between the fundamental and
harmonic components of a given musical note or sound. These relationships dene a sound’s “sound”.
When these complex relationships pass through a speaker, the proper order is lost. The higher frequencies are
delayed. A lower frequency may reach the listener’s ear rst or perhaps simultaneously with that of a higher
frequency. In some cases, the fundamental components may be so time-shifted that they reach the listener’s
ear ahead of some or all of the harmonic components.
This change in the phase and amplitude relationship on the harmonic and fundamental frequencies is techni-
cally called “envelope distortion.” The listener perceives this loss of sound integrity in the reproduced sound
as “muddy” and “smeared.” In the extreme, it can become difcult to tell the difference between musical instru-
ments, for example, an oboe and a clarinet.
BBE Sound, Inc. conducted extensive studies of numerous speaker systems over a ten year period. With this
knowledge, it became possible to identify the characteristics of an ideal speaker and to distill the corrections
necessary to return the fundamental and harmonic frequency structures to their correct order. While there are
differences among various speaker designs in the magnitude of their correction, the overall pattern of correction
needed is remarkably consistent.
PHASE INVERSION
These phase inversion switches reverse the audio signal’s phase by 180°. Normally you won’t need this switch,
however, in some cases, it might be necessary. For example, the inversion of the pins of the XLR connector may
be necessary to alter the audio phase to compensate for phase cancellation.
GETTING STARTED
– 1 –

Содержание

Скачать