Undertone Audio Pyra-Sum No This includes three high-pass filters

This includes three high-pass filters at 60

stereo wired unbalanced for all connections

the rack and 500PRE will provide years of reliable service

Robust but light housing made completely from aluminium

With a streamlined signal path of two custom-wound transformers and fourteen tubes

Undertone Audio Pyra-Sum No This includes three high-pass filtersThe Ultimate Hybrid Mixing Setup The Pyra Sum is a passive summing mixer that has what other summing mixers don't: multiple cascading busses. This bussing architecture allows you to truly have the sound and workflow of a large format console but with even more sonic flexibility and in a much smaller format. We've left out any active circuitry, which means that you have total control of the coloration that's added in the makeup gain stagesit also means