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B-1 Active Bass Extension / Subwoofer Crossover / Subsonic
3 applications with variable controls in one high quality unit
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Bass Extension
Every passive speaker box can reproduce about ½ ocave lower bass. The bass decrease will be accentuated with BASS BOOST and BASS FREQUENCY. ,
The lower inaudible bass is filtered with SUBSONIC and disburden the speaker and amplifier from idle power.
Subwoofer Crossover
HIGH CUT will be activated and only lets the low frequencies
pass variably.
Subsonic Filter
Every speaker and satellite box power handling will be upgraded by setting the variable SUBSONIC. The amplifier is relieved and can deliver more power within the needed frequency range.

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