I recently released a matrix mixer; not as small as some of the others you mention, I'm afraid, though it does have built in passive mults on all ports which should help save some routing space, or splitters at least.
happy-hardware.com
I recently released a matrix mixer; not as small as some of the others you mention, I'm afraid, though it does have built in passive mults on all ports which should help save some routing space, or splitters at least.
happy-hardware.com