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ThxOne

3-way Active Crossover Points? Where to start?

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Where should I set the crossovers initially? Before I do an RTA or anything like that... Literally the starting point with all EQ's flat and no enhancements. Here are the speaker sizes and locations:

Alpine 38mm Tweeter - High in the door, factory location, off axis. (Alpine says 800 - 45Khz [-10db]) (4ohm)

Digital Design 2.75" Midrange - Middle Lower door, Just above the woofer, factory location, off axis (160 - 20Khz) (4ohm)

SilverFlute 6.5" Woofer - Lower door, factory location, off axis (50 - 3... 4... 5Khz?) (4ohm)

NO REAR SPEAKERS

Dayton Ultimax 10" Subwoofer - Trunk, shredder2 box design, non directional (25 - 1.5Khz) Dual 2ohm (1ohm)

I have read so many different post and there are so many crossover points... but where to start with a given speaker size?


2008 Pontiac G6 GT Coupe - Full Active Build Coming Soon (Technically in progress?)

1995 Jeep Grand Cherokee Limited - Rolling Cluster F**K - But Sounds Good

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Have you searched each drivers website for information? Companies will usually list their recommended points and power ratings. If  the Digital Design mid really does extend to 20k there is no real constructive use for the Alpine tweeter and I would lose it as it will cause too many issues. There is no possibility that the mid is going to reproduce 160Hz at a reasonable listening level without horrible distortion and damage and should be crossed over much higher. Do you have a preference for crossover slope? What slopes does the processor offer? So without getting very in depth and no Alpine tweeter (which should be at least a 2nd order HP @ 3kHz to start), I would high pass, or 2nd order HP the Digital Designs @ 600Hz, the SilverFlute 6.5' should start out with a 2nd order LP @ 600Hz and a 2nd order or higher HP @ 60-70Hz. To achieve the greatest low frequency impact I would HIGHLY recommend setting the sub point, slope and time delay in relation to the front speaker settings while listening to low frequency sine waves. Try adjusting the front HP filters also until you achieve the best possible combination.

Cheers

 

Edited by blue66

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