The B4 II is a tonewheel organ plug-in or stand-alone application for
Mac and Windows that completely recreates the sound of the classic B3
organ, including rotating speakers. By performing a thorough analysis
of the electro-mechanical sound generation and tube circuitry of the
best organ and speaker cabinet combinations, Native Instruments
created a software model based on NSP (Native Signal Processing)
technology.

Additional components include a tube amplifier and a selection of
classic speaker cabinets that offer a greater freedom of expression.
Spring and studio reverb modules lend the sound more depth and
atmosphere.

From the drawbars, the vibrato and chorus to the tube distortion and
rotary speakers, the B4 II delivers the sound of the original in
incredible detail. The cross-talk between the tonewheels is adjustable
and eleven additional tonewheel sets are also included. The user can
"cosmetically age" the B4 II or transform it into a Farfisa, Vox
Continental or an Indian Harmonium.

B4 II functions as follows:

Stand-alone under ASIO, DirectSound or Core Audio
Plug-in for applications supporting VST, AU and RTAS for Mac OS X

Compatibility
Architecture: PPC x86 (Intel:Mac)

Minimum: G4 733MHz, OS X 10.3.x, 256MB RAM.
Recommended: G4 1GHz, OS X 10.4.x, 512MB RAM.