BBE Model 411 Sonic maximizer sn H01177
BBE Maxie Model 411 Sonic maximizer, Lo Contour and Process controls, has 1/4" I/Os, 1 RU, VVG condition.
Disponibilité: 1 en stock
This unit is in excellent condition, has never traveled and all controls and I/Os are operating perfectly.
The following has been copied from the original BBE manual, which offers more confusion than clarification.
Front Panel:
Instrument Level Input
Gain Control: (for instrument input)
Lo-Contour: Controls Phase compensated Bass EQ, +/-10 db
Definition: Regulates amplitude as indicated in the Hi Contour LED display. Full CCW equals flat response with Phase compensation only. CW rotation increasese amplitude of Hi frequencies relative to mid band amplitude.
LED Stack: RED indicates Compression Mode, high band is too high compared with Mid levels.
AMber indicates Flat response, no compensation needed.
Green indicates Expansion mode, High band is too low and is being expanded to compensate.
The Process switch: In auto mode the 411 provides automatic compensation of ratio for the high band response. In manual provides a factory preset to the high band.
The function switch is simply an IN/OUT switch to compare signals with and W/O processing.
There are 2 1/4" outputs, one low level at instrument/mic level, and a line level (-10db) output for Consoles, power amplifiers, etc..
From BBEs Brochure on the 362:
The BBE 362 Sonic Maximizer gives your sound the clarity and volume you've been searching for. It features unbalanced 1/4" ins and outs, dual channels with ganged process and low contour controls, threshold control, and a bypass switch for comparison of processed and unprocessed signals. +16dBu headroom. The BBE 362 Sonic Maximizer is ideal for use with pro and semi-pro sound reinforcement, musical instruments, DJ systems, recording and tape duplication.
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.
The BBE Process is so unique that 42 patents have been awarded by the U.S. Patent Office.
Features
- Ganged stereo process control
- Ganged stereo low contour control
- +16dBu headroom
- Unbalanced 1/4" inputs and outputs
Applications
- Pro and semi-pro sound reinforcement
- Multitrack studios
- Mobile DJ systems
- Cassette copies
- Nightclub sound systems
- Instrument racks for guitar, bass and keyboards
Features
- 2 channels of process for stereo or separate mono mixes
- 5 segment LED output meters
- +18dBu headroom
- RCA and 1/4" inputs and outputs
- Hardwire bypass
- Bypass switch for comparison of processed to unprocessed signal
Specifications
Frequency Response,
Process Mode: Program controlled
Bypass Mode: 10Hz to 50kHz, +/- 0.5dBu, 10dBu input
Signal to Noise Ratio: 112dB Process IN
THD, Process mode: less than 0.025% at 20-20kHz
Bypass mode: less than 0.002% at 20-20kHz
Maximum Output: +18dBu (may vary due to control settings)
Input Impedance: 47K Ohms, unbalanced 1/4" phone jack or RCA jack.
Output Impedance: 1K Ohms, unbalanced 1/4" phone jack or RCA jack.
Sensitivity: -45dBu for maximum process
Maximum Process: +12dBu boost at 5kHz, -10dBu input
Lo Contour: +12dBu adjustment at 50Hz, -10dBu input