Re: Eclipse 8445 crossover settings question
well, it'll be 24db/oct, but with a response that is not quite the same as a true 24dB/oct fillter. and the cutoff point will no longer be 63hz.
If you do both you effectively double the slope. FOr example, if you LP the sub at 63hz at 12db/oct on the HU and 12db/oct on the amp, you now have a 24db/oct at 63hz. At least I think that's correct.
digital crossovers = software based. active = any crossover that uses external energy (not from the signal). passive = anything that uses no external energy.
A active crossover uses software to adjust the settings while a passive uses components like resistors and caps. Some people prefer the sound of active while others prefer passive.
as for the crossovers and slopes. you should expiriment. some things to try:
both shallow slopes. (6db/oct or 12db/oct) --good if the subwoofer is turned up very loud compared to the midwoofers)
both steep slopes (24db/oct) -- good if the midwoofer and subwoofer have sound issues (sub sounds bad on vocals, mid sounds bad on bass)
staggard slopes (24db/oct on subwoofer, 12dB/oct on midwoofer). -- the idea is that the midwoofer will have an acoustic 12dB/oct rolloff, so it makes sense to conbine it with a 12dB/oct rolloff for a 24dB/oct rolloff.
try each for a few frequency settings. make sure to try the woofer "reverse phase" option, as turning it on or off my improve the sound.
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