There's also pretty affordable solution from Doepfer:
The A-119 Ext. In. as input (note the input there is stereo):
and A-139-2 as the output (this is also stereo):
There's also pretty affordable solution from Doepfer:
The A-119 Ext. In. as input (note the input there is stereo):
and A-139-2 as the output (this is also stereo):