Antonus Step Brother DIY - Test Drive w/ A2600, SR-909 and Fractal VP4

video upload by Tumeni Knobs

"It took a couple of months, spending a few hours on weekends, but I got it done! And it's very cool. This demo is pretty rough, but highlights a bunch of the key features of the Step Brother and the "performability" it offers.

See my full build log here: https://www.modwiggler.com/forum/view...

In this setup, the Steda SR-909 is sending midi clock to the Step Brother and the VP4 to keep them in sync. Step Brother is configured to run 2x8 step sequences on channels A and B. Channel A quantized CV output is sent to the 2600 mult and then routed to the CV inputs of oscillators 1 and 2. Channel B quantized CV output is sent to the CV input of oscillator 3.

Step Brother Gate Bus 1 is routed to the 2600 main gate input and triggering the 2600's ADSR envelope. SB Gate Bus 2 is triggering the envelope on the Step Brother and audio out of Osc 3 on the 2600 is routed to one of the VCAs on the Step Brother which is controlled by the Step Brother's envelope. That is then routed back to the 2600's mixer.

Audio out of the 2600 is routed to the VP4, and then routed to the ALA Bartender along with the audio of the SR-909. Output from the Bartender is sent to the iRig Pro and recorded on iPhone with the video.

Cheers!"