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I'm building a crossover using this schematic that I found here somewhere. Is it necessary to run the negative from the battery to the negative of the LF speaker? I'm going to bi-amp. Also for L4 I couldn't find a 3.5 mH inductor, just a 3.6. Is that going to make a difference? I know you can unwind the inductor slightly to change it's inductance, but I have no way to measure it.
I'll try adding it as a jpeg.
"I'm building a crossover using this schematic that I found here somewhere. Is it necessary to run the negative from the battery to the negative of the LF speaker?"
No.
"I'm going to bi-amp. Also for L4 I couldn't find a 3.5 mH inductor, just a 3.6. Is that going to make a difference?
less than 3% (+/- the part tolerance), but that's also the difference between say 1200 and 1164Hz (ignoring everything else for this thought experiment). Personally, I'd try to figure out how many turns are there and take off a few, or finding a precision cap and seeing where the pair resonates & do the math, but the audible difference might be very subtle. No harm in trying it as-is.
Thanks, someone at work has a meter that measures inductance. I might as well get it right.
That little voice inside your brain will thank you. :)Quote:
Originally Posted by robertg