BBE DI-1000 Active/Passive Direct Box

价格： $249.99 (约合人民币 ￥1825) （注：此价格为美国市场参考价格，非本站出售价格，本站正在积极搭建代购渠道！）

• 浏览：143次
• 品牌：BBE
• 状况：全新
• 类别：现场音响 - 信号处理 - Direct Boxes
• 一句话简介：Sonic Maximizer equipped.
• 简介：The BBE DI-1000 Active/Passive Direct Box has a full-featured Sonic Maximizer and a Jensen JT-DB-E impedance matching transformer to deliver a flat frequency. A pad switch offers up to 30dB attenuation allowing you to connect your amp's speaker out directly to the console. Groundlift switch, balanced XLR output, 1% metal film resistors, 1/4" tip-sleeve input and thru-put, and military-spec circuit boards. The BBE DI-1000 Direct Box adds clarity to active- and passive-pickup equipped guitars and basses.
  
  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.
• 技术参数：
  1. Incorporates a full-featured Sonic Maximizer and a Jensen JT-DB-E impedance matching transformer to deliver a flat frequency
  2. Active/passive operation
  3. A pad switch offers up to 30dB attenuation
  4. Groundlift switch
  5. Balanced XLR output
  6. 1% metal film resistors
  7. 1/4" tip-sleeve input and thru-put
  8. Military-spec circuit boards

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