Not sure of this exists in the home audio arena (found car options).
I'm trying to get a line level sub output from a stereo source before the stereo signal hits the amp.
At this point I've only found a Parasound
ZPRE3 that looks like it will work. But I only need one audio input, sub output and the loop out audio output to two channel amp. I don't need a preamp.
Anyone know of if this type of "adapter" exists?
Look for 'line level low pass crossover' on your browser- Harrison is a company that makes passive crossovers, called FMOD.