some of the doepfer filter modules do this in 8hp - wasp, sem etc
-- JimHowell1970
I have 2 wasp filters but the LP/HP mix knob is additional to the cutoff knob which requires to use both hands in some situations.
unfortuantely the unfiltered signal of the cutoff is on the opposite position for HP/LP (like most filters i have in my rack).
thx anyway!!
...Usually called "DJ" filters...
-- farkas
thank you!