I was thinking just about the same thing, only with 8" instead of 6-1/2". See the above post.
For tweeters that are genuinely designed as "Super Tweeters", using them down to 2k would GREATLY reduce their power handling.
At that price, you may find > you get what you pay for. They have foam surrounds and are probably made in China.*
With todays Car Amplifiers, you get real strong power, so ruggedness & durability of drivers should be considered.
* made in China doesn't necessarily mean bad > but CHEAP made in China can be a warning sign !
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Based on both of these comments and everything else thus far, I think perhaps using those 8" full range may not be the right choice.
I'm pretty well decided that I'm going to use either all GRS 8pt-8 or combination of those and the Goldwood PAC8 to cover from 80/100 - 500/1000hz as those drivers have enough power handling, excursion and sensitivity to keep up with a pair of 15's and a pair of 12's that will be used as subwoofers.
Still undecided on 500/1000hz and up. I don't know why I'm so stuck on wanting to try out those bullet super tweeters instead of the horns. And now I'm actually back to thinking those original 6-1/2" poly cone woofers might fit the bill as midranges. I also found some other midrange contenders. Main concern is whether any mids smaller than 6" will be able to deliver enough output to keep up with the 15's, 12's and 8's.
Current contenders for Midrange:
https://www.parts-express.com/GRS-6PT-8-6-1-2-Paper-Cone-Prosound-Woofer-8-Ohm-292-800?quantity=1
https://www.parts-express.com/6-1-2-Poly-Cone-Woofer-4-Ohm-299-609?quantity=1
https://www.parts-express.com/Pyle-PDMW5-5-High-Performance-Midbass-Woofer-292-202?quantity=1
https://www.parts-express.com/Pyle-PDMR5-5-Sealed-Back-Midrange-292-200?quantity=1
https://www.parts-express.com/Goldwood-GM-65-4-Sealed-Back-5-1-4-Midrange-4-Ohm-280-100?quantity=1
At $8 each, those poly cone woofers seem like they might be a good choice. Apparently nice and smooth to 3k and usable up to about 6k. If I can get something that has enough power handling, output and gets up to at least 4k-6k then it opens the door for using super bullet tweeters or horns.
Anybody have any experience with piezo horns like these?
https://www.parts-express.com/Goldw...ion-Piezo-Horn-Mid-Tweeter-280-062?quantity=1
https://www.parts-express.com/GRS-P...-Tweeter-Similar-to-KSN102-292-444?quantity=1
What's the difference between the above and the following? Are they both piezo?
https://www.parts-express.com/Pyle-PH391-4-x-10-Horn-Tweeter-292-2624?quantity=1
Pyle PH-391 is not a piezo!
I would skip piezo tweeters entirely.
If you want big numbers of drivers and high SPL for cheap, this is my suggestion (per channel):
https://www.parts-express.com/PRV-A...40-Waveguide-1-3-8-18-TPI-294-2912?quantity=1
You have to mechanically support somehow the magnet of the D280Ti-S, because it is heavy and the horn is plastic.
I would skip piezo tweeters entirely.
If you want big numbers of drivers and high SPL for cheap, this is my suggestion (per channel):
- 8 woofers GRS 8PT8 (four in parallel, in series with other four of them in parallel) from 100 Hz to 300 Hz
- 8 midranges GRS 6PT8 (same parallel-serial connection) from 300 Hz to 3 kHz
- 1 high-frequency driver PRV Audio D280Ti-S plus 1 horn PRV Audio WG23-25, above 3 kHz.
https://www.parts-express.com/PRV-A...40-Waveguide-1-3-8-18-TPI-294-2912?quantity=1
You have to mechanically support somehow the magnet of the D280Ti-S, because it is heavy and the horn is plastic.
.Yeah, I have never used or heard piezo, but I think they are supposed to be pretty harsh.
That's a killer recommendation, but maybe a bit more than my budget, available amplification and physical space would allow. Maybe instead of 8-8-1 each channel I could get away with 4-4-1 each side. Since I'm planning on setting up a 4-way system and basically quad-amping it, then I will be able to attenuate any of the individual drivers as needed.
All too often they wereused with the “natural XO” just because you could and it elimimated the cost of a HP XO.
They really need that.
dave
Opinions on 8 of these:
https://www.parts-express.com/6-1-2-Poly-Cone-Woofer-4-Ohm-299-609?quantity=1
vs 4 of these:
https://www.parts-express.com/GRS-6PT-8-6-1-2-Paper-Cone-Prosound-Woofer-8-Ohm-292-800?quantity=1
if used in this project to cover the 300hz-3khz range.
https://www.parts-express.com/6-1-2-Poly-Cone-Woofer-4-Ohm-299-609?quantity=1
vs 4 of these:
https://www.parts-express.com/GRS-6PT-8-6-1-2-Paper-Cone-Prosound-Woofer-8-Ohm-292-800?quantity=1
if used in this project to cover the 300hz-3khz range.
OK, still deliberating.
Somebody tell me I'm crazy to just go ahead and use like 48 or 96 of these to cover 300hz and above for midrange/highs. Maybe make some line arrays that could be removed from the van and set up vertically standing 6-8ft tall.
https://www.parts-express.com/YDP51...Range-Speaker-8-Ohm-15-20-289-2346?quantity=1
If a few tweeters were needed, then anything could be used including the bullet style tweeters because these full range could probably be crossed at anywhere up to 10khz-15khz.
At this point I realize the project would likely be sacrificing any shred of quality and would become purely a "party speaker" system with tons of visual "wow factor" because of all the drivers
Somebody tell me I'm crazy to just go ahead and use like 48 or 96 of these to cover 300hz and above for midrange/highs. Maybe make some line arrays that could be removed from the van and set up vertically standing 6-8ft tall.
https://www.parts-express.com/YDP51...Range-Speaker-8-Ohm-15-20-289-2346?quantity=1
If a few tweeters were needed, then anything could be used including the bullet style tweeters because these full range could probably be crossed at anywhere up to 10khz-15khz.
At this point I realize the project would likely be sacrificing any shred of quality and would become purely a "party speaker" system with tons of visual "wow factor" because of all the drivers
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Hi...
It will be really cheap... and cheap looking. No "wow" at all.
This will be a party speaker with good quality and "wow factor" because of all the drivers:
So there it is...crazy idea. Thanks for affirming that.
PE sometimes has sales for 10%-12% off, so maybe the next time I order proper speakers for the project I will throw in 100 of these. With a discount they would be like $55 including tax and I think they would be a blast to just mess around with.
PE sometimes has sales for 10%-12% off, so maybe the next time I order proper speakers for the project I will throw in 100 of these. With a discount they would be like $55 including tax and I think they would be a blast to just mess around with.
I believe 4 of these drivers per channel would deliver very decent & powerful sound in that frequency range