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3-band recording-console-quality EQ with sweepable mid and low frequency notch filter. Phase reversal, ground lift, line level out, dedicated tuner out, TRS effects loop, and even a pre/post switchable DI output with pad make this a true studio-quality device that shines onstage. Hardwire bypass, non-slip rubber bottom, included 12V power supply.
The BBE Process--"What it Is"
Loudspeakers have difficulty working with the electronic signals supplied by an amplifier. These difficulties cause such major phase and amplitude distortion that the sound reproduced by the speaker differs significantly from the sound produced by the original source.
In the past, these problems proved unsolvable and were thus relegated 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 define 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 first 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 technically 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 difficult to tell the difference between musical instruments, 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.
Three band, recording-console quality eq with a sweepable mid-range band
Low-frequency notch filter
Line level out
Dedicated tuner out
TRS effects loop
Pre/post switchable-balanced DI output with pad
Non-slip rubber bottom
12v power supply included
Frequency Response: 50Hz - 20kHz
Treble: +/-12dB @ 10kHz
Mid: +/-12dB @ 400Hz - 2.5kHz
Bass: +/-12dB @ 60Hz
Notch: 0 to -12dB @ 70Hz - 250kHz
BBE: Lo Contour +15dB @ 50Hz
Process: +15dB @ 10kHz
Noise: Instrument Jack -98dBv (unity gain)
Line Out: -88dBv (+10dB gain)
Max Output: +10dBu @ Instrument Jack
THD: 0.05% at 1kHz
Impedances: Input 2.2mOhm
Tuner Out: 2kOhm
Line Out: 1kOhm
Instrument Out: 2kOhm
XLR Out: 600Ohm
Power Requirements: DC inlet +12VAC min. 200ma