B-2 active bass extension & subsonic        sold out   
bass extension
Every passive loudspeaker is capable of producing a 1 octave lower bass by selectively
boosting the attenuated bass signal with the use of BASS BOOST and BASS FREQUENCY functions.

Subsonic filter
The power input capability of a given loudspeaker or satellite box can be increased by an individually

 adjustable SUBSONIC. Consequently, amplifier power can be assigned to any desired frequency range.

rumble filter

The adjustable / parametric SUBSONIC is ideal for the use of a record player, in order to
accurately filter out low-frequency rumble without losing too much music.

Without B-2
With B-2

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