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Old Today, 11:48 AM   #43
soundman98
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i do have that specific model on my parts shelf, but i've never tried it. after the point source dropped into the dash with almost zero effort, i lost any motivation to try any speaker like that required more effort to build a bracket.

i have tried the air motion tweeter(don't recall if i used the 4 or 8ohm, want to say it was the 8 ohm version though), and wasn't very impressed-- it existed and functioned, but the high end was best described as 'lifeless'. it got me reaching for the eq to fix the feeling of loss, and any time i reach for the eq, i start considering if there's a better option.

so after that, i really didn't have a huge desire to try any planar designs-- the response curve above 10k is has a similar rolloff.


i did briefly consider the planar tweeter for my truck build (pictures are in the 1x5 review i posted on parts express, because no one else is reviewing them), but planar designs are heavily influenced by the rear air chamber which was non-existent mounting in the a-pillar like i did, and they just plain looked ugly to me--the very first goal of the truck build was to have an exposed speaker there that didn't look like an exposed speaker.


it's extremely petty, and has no real basis on specifications, but most of any speakers i use/like for any project has a lot to do with it's looks and uniqueness. that's how so many speakers ended up on my parts shelf, they look different, or do the same thing a different way, and i'm curious.
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Old Today, 06:20 PM   #44
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@soundman98 I would have went with the 3.5" Tectonic BMR for the dash, but all the 4ohm dealies are out of stock till summer. Seems you gravitate toward 8ohm speakers geared more toward custom cabinets for your cars. There is a sound quality reward for running higher resistance speakers?

As far as the mounting for that 1 x3" planar tweeter It looks like you can easily fabricate a gasket surround or a small riser to attach it behind a grill of some sort. This way it has all the air behind it to do what it need to do.. As long as the grill looks good. Or if you're fancy like the guy in the reviews you can buy 30 of them and spell out your name with it. I can make a LA Lakers logo using this and purple mounting plate. Just 1/4" thick it can be pretty dang flexible with mounting options.

But, that's all a waste if they dont sound good in the first place. I know what to expect with the traditional speaker. You look at these and think "wtf?". I"m curious, but I also dont wanna waste too much money experimenting either. lol
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Old Today, 07:48 PM   #45
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no real reason i prefer 8 ohm to 4 ohm. i just like the concept of higher resistance speakers better. i think they offer better response than lower resistance speakers, but the numbers really don't indicate that.

for me it's somewhat of an antithesis of the way car audio has gone. i've met plenty of people that push and shove for 1.5 ohm subwoofers, and get caught up in big wattage numbers games where all that matters is that they're pushing fatter numbers into smaller and smaller resistance speakers. i don't need to break records, or prove anything to anyone, so i just 'do', and ignore some of the car audio malarkey.
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Old Today, 08:06 PM   #46
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@soundman98 Do you think not having a sealed baffle (the dash surrounding the point source has a few holes in it) makes a noticeable difference? I believe the factory 4" has a forward facing foam surround that contacts the underside of the grill to become sort of "semi-sealed". Or is the lower cutoff frequency driving the speaker high enough that the open baffle just doesn't have much cancellation effect (or the car is just too noisy to tell).
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Old Today, 08:14 PM   #47
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i'm seriously re-reviewing the specs and info on the planar tweeter and remembering that some of the reason that i'm not using it is the high crossover point. the MINIMUM crossover point is 4khz. it means that in all reality, i'd need to cross them at 5-6khz. i'd likely lean closer to 6k to avoid any immediate issues and then slowly drop them down to 5k if i could.

in the car, i use a set of 7" esoteric's. the truck runs 6.5" hds'. both start to have extremely erratic frequency response above 1khz, especially off-axis, where both have a significant drop near 3-4khz, that would fall underneath the required crossover point...

meaning that the planar tweeters would absolutely require a midrange to pick up the slack from about 800hz to the selected crossover point. with a subwoofer, it's now looking at building a 4-way setup. no deck supports 4-way, so it's all in passive crossover or dsp territory--dsp would be preferable to make it easier to balance every set of drivers, but that means an additional set of amp channels...

and this doesn't even account yet for the fact that the 1x3" dimensions mean that it wouldn't fit in the tweeter spot in these cars and would need to take over the midrange location. so now a new location would need to be found for the additional midrange...

so while they're possible, i start to run out of physical space for all the drivers required, and when i can just do 2 drivers instead of 3, planar drivers just seem to create more needs and requirements than they fix..

TLDR, i wouldn't recommend bothering with them. they might be nice in a 3-way bookshelf, but not in a space-limited vehicle install.
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Old Today, 08:41 PM   #48
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@soundman98 Do you think not having a sealed baffle (the dash surrounding the point source has a few holes in it) makes a noticeable difference? I believe the factory 4" has a forward facing foam surround that contacts the underside of the grill to become sort of "semi-sealed". Or is the lower cutoff frequency driving the speaker high enough that the open baffle just doesn't have much cancellation effect (or the car is just too noisy to tell).
Thanks!
in post #43, the first link is the picture right after i installed my point-sources. they just sit in the opening, with a small section of aluminum flat bar with the oem bolts to hold it down on the edges to keep from vibrating. i want to say they were deep enough that the magnet assembly was touching on the bottom as well, but don't clearly recall any more...

i don't notice any ill effects from this method. it's really all i can say. it's still possible of course, but i don't notice any of it...
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Old Today, 10:44 PM   #49
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@soundman98 there is a way to mount that tweeter next to your 3.5" dash speaker. The empty area to the right of the speaker where the current tweeter resides. The grill will need to be modified. 1/8" drill bit to create more holes for the new shape. trim down the back to fit your stick-of-bubblegum sized tweeter and gasket. BOOM! look like stock. Then you might need to trim down the dash at the speaker area for more air space behind. That part may get tricky since you have the holes to clip the grill in position in close quarters.

You can kinda play with angle o direct it toward different part the windshield, but range of adjustment is going to be limited. So.. it still might sound like shit or it might be perfect. But its exactly how factory tweeter is mounted and directed. Now just gum shaped instead of a round puck .
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Old Today, 10:53 PM   #50
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@soundman98 there is a way to mount that tweeter next to your 3.5" dash speaker. The empty area to the right of the speaker where the current tweeter resides. The grill will need to be modified. 1/8" drill bit to create more holes for the new shape. trim down the back to fit your stick-of-bubblegum sized tweeter and gasket. BOOM! look like stock. Then you might need to trim down the dash at the speaker area for more air space behind. That part may get tricky since you have the holes to clip the grill in position in close quarters.
ok, then it's just not worth it to me
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Old Today, 11:05 PM   #51
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okay.. I dont what to do all that either. lmao
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