what would be a 'good' tack to make something like an active crossover?
My plan is to use the low end for something like compression, and Fuzz only the mid's and highs, then mix them back together...
hey petemoore you need to decide what freq range you want to split it at. i have a dual opamp schematic that splits the two things together roughly at half of the guitars range. if you want to see it let me know i will dig it up
Try a state variable filter (ideally with adjustable Q). An SV filter will give you that crossover to a degree with hipass, lowpass, and bandpass outputs all at once. The best part is that you can easily change the frequency.
If you go the more traditional route, it's going to be lots of work for something that may not split the band in the best place for what you want to do.
Try modding a Neutron. :)
Take care,
-Peter
That's a great tip about the state-variable. The nice thing is that tuning-pot requirements are as simply as a dual-ganged.
I guess the question that Pete M has to ask himself is the extent to which he wants his low and high band to meet, overlap, diverge, etc. The SV filter *will* provide simultaneous lowpass, bandpass, and highpass outputs, but the number of poles, and the sharpness of the filter is pretty much fixed by the topology of the state-variable filter.
If you want a flat and steep lowpass section for maximum low bandwidth, but need only a shallow slope for the high-band, the SV won't do it.
On the other hand, it is hard to think of an easier and faster way to identify where you need your crossover point to be than with the SV application Pete S suggests. Maybe the strategy to employ is to use the SV for your ball-park estimate and then once you identify the optimal crossover point and any particular slope needs/criteria, build a more elaborate crossover using fixed filters.