Gear Review

Softube Launches Buchla 259e Twisted Waveform Generator

Softube, one of the leading software manufacturers, is proud to announce the first ever officially licensed Buchla plug-in: The Buchla 259e Twisted Waveform Generator for Modular. Unique and desirable, this dual oscillator is guaranteed to add some real spice to your Modular patches. The module is $99, with an introductory price of $79 until October 31, 2017.

The Buchla 259e Twisted Waveform Generator plug-in for Modular features all the digital waveshaping, aliasing noise and fold over frequencies of the original hardware. Enjoy the self-modifying, screeching, snarling responses from the original’s downright odd inner workings. The 259e is truly a unique addition to the Modular ecosystem.


“What Is a Twisted Waveform Generator Anyways?”

The 259e consists of two separate oscillators—Principal and Modulation—where Modulation can be used either to modulate the Principal oscillator or as a separate generator of audible notes. Furthermore, the sine wave generated by the Principal oscillator is simultaneously applied to two of the eight available waveshape tables. A morph voltage pans between the two tables and a warp voltage varies the amplitude of the sinusoidal (driving) waveform. Both these functions can be modulated by the Modulation oscillator. Three of the waveshape tables are actually not tables in the classical sense—they are simply portions of the 259e operating program, full of unpredictable noise and frequent silences. This is the innovative Mem Skew mode, possibly the most unique feature of the Buchla 259e. When these tables are selected, the FM controls are re-assigned to table scanning functions and the FM inputs become table modulators.


Buchla 259e is an add-on for Softube’s popular virtual Eurorack synth Modular, and using the 259e requires a Modular license. While the hardware unit is typically sold for $1599, the plug-in is only $99—with an introductory offer of $79 until October 31, 2017. Check out more HERE.

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