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Electronics | Audio | NAV | Infotainment Anything related to in-car electronics, navigation, and infotainment. |
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04-21-2020, 10:15 AM | #43 |
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+1 for this. You want to keep the center to center mounting distance less than 1 wavelength of the crossover frequency.
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04-21-2020, 01:35 PM | #44 | |
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04-21-2020, 06:04 PM | #45 | |
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You may need time delay, but you can still do that in a properly designed passive. Or by physically offsetting so their acoustic centers are planar. When I get around to redoing my car, I'll be doing a passive XO and single amp. I might actually do a 3-way passive, but that gets tricky and probably isn't worth the weight in parts. Or the headache. You can get really bizarre behavior when c2c rules are broken. In a well controlled space, this can sometimes be useful... but a car is already a mess for high frequencies. Basically you pick up ugly comb filtering. My worst goof with this was EQing a set of pro tops which have a vertical array of a whole bunch of horn-loaded tweeters... and I had to measure too close and forgot to move the mic... had this horrible null, and it didn't want to EQ and kept sounding worse and worse... then and I remembered my physics. Distances between were bigger than shared frequencies resulting in comb filtering. Since these are designed for much bigger distances to the listener, this works out in this particular design... but again, not in a car! bored today I am.
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Second chance build... or whatever it is.
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04-22-2020, 08:58 AM | #46 |
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What do you guys think about the factory positioning of the tweeter and mid on the dash? That's a fixed location, so all of us have the same acustics. I'm sure it will take me much much longer to figure this out.
tell me about it.. good thing i got 99-projects going on between my car and my home. Multi-tasking is a myth i tell ya. A fantasy.
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04-22-2020, 09:18 PM | #47 |
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I'm fine with the OEM location. IMO there are a lot a really good reasons to stick the tweeter right next to the glass in car audio applications. Glass is a great reflector. These cars are noisy, so a sound system can only be so good. The road and engine noise are enough to make the glass reflection compromise a no brainer. Meaning it's not worth it, to me, to change the location.
When I did my system I replaced the OEM mid/tw with a tweeter only, so I'm not sure what it will sound like with a mid up there. I got great imaging after time aligning. I was using a Pioneer DEH-80PRS for crossover and time alignment. |
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04-22-2020, 09:42 PM | #48 | |
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Between the factory speakers and the 4 full range and 6.5" components I can try out different combos and see what i like better. I'm sure I've way overthinking it.
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cowardice is the mother of cruelty. Last edited by solidONE; 04-23-2020 at 12:47 AM. |
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