IO Passive IO Card Expander for Buchla Music Easel

4U Shop IO

The IO from 4U Shop is a fully passive input/output expander card for the Buchla Music Easel, adding a ton of extra functionality for the Easel's onboard modules. It gives you access to several extra CV jacks for the sequencer, envelope generator, and complex/modulation oscillator. The additional patch points for the sequencer provide an external trigger input, along with a sequencer pulse output. The card expands the envelope generator's capabilities by adding CV inputs for the Attack and Decay durations, along with a dedicated attenuator knob for each parameter, and an overall EG duration CV input. Last but not least, the Passive IO Card expands the functionality of the Complex and Modulation Oscillators with creative utilities like a Waveblend CV input for the CO with an accompanying knob. Additionally there are two CV inputs for the MO and CO waveshape, giving you access to even more modulation potential. If you're looking to expand the timbral and modulation potential of your Music Easel, the IO Card from 4U Shop is an excellent addition to an excellent synthesizer.

IO Features

• Fully Passive IO Card for the Music Easel
• External Trigger input for the Sequencer, Random Generator, Pulser and Envelope Generator
• Tigger outputs for the Sequencer and Pulser
• CV input for EG Duration, and attenuated CV inputs for EG Attack and Decay
• Attenuated CV input for the Complex Oscillator's Waveblend
• CV input for the CO and MO's Waveshape switches