To maintain that warm analog sound, the B-Free™ uses a tube type preamplifier. Triode tubes are used because they provide the best linearity of all active devices, and when they do distort, they produce a growl, characteristic of an old Hammond™.

For its distinctive percussive sound, the B-Free™ uses a tube type percussion circuit, incorporated into the preamp.
 
The preamp has enough output to drive a Leslie™ to full power. No additional preamp is required between the B-Free™ and the Leslie™.

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