PA speakers with regular tweeters is really difficult, because the bass is so loud.
It can be done with heavy coned 8-10" around 91dB. I did this myself with an Eminence Alpha or Beta 8A and a loud 1.5" Audax tweeter and a regular second order filter in a cubic foot of reflex. It sounded very good. Usually 2mH/10uF bass. 3.3uF/0.3mH tweeter.
Marco_gea found a suitable 8" driver (and maybe something like that is made in Brazil. He used with a 91dB Monacor HT22/8 cone tweeter which goes for peanuts:
http://www.diyaudio.com/forums/multi-way/147632-classic-monitor-designs-25.html#post4428857
The 2Pi speaker uses a coil around 0.5mH on the very well behaved Eminence Alpha 10 and a loud Vifa DX25 with about 10uF cap and a 15R shunt. Bit Mickey Mouse, IMO, but who knows? Below. Hope that encourages you.
I am not limited to tweeter, as I can get some CD and weaveguides/horns over here, an I can also import them.
I will check the thread and posts from Marco_gea. Thanks!
Regarding the Pi Speakers from Wayen Parham, he use the Eminence Alpha 10A with the 2Pi and 2Pi Tower so it is a very likely alternative. Do you have some feedback on the performance, SQ and dynamics on the Pi speakers? Especially the 2 Pi model.
Hi mga2009!
Please do not quote the entire previous post as it makes the thread difficult to navigate - see forum guidelines.
Thanks!
Please do not quote the entire previous post as it makes the thread difficult to navigate - see forum guidelines.
Thanks!
I'll leave it to Steve to explain the Mickey Mouse reference.
I will say that it's often a bit of Donald Duck* that a speaker sounds as good as it does!
* Donald Duck = Luck (an example of rhyming slang!)
I will say that it's often a bit of Donald Duck* that a speaker sounds as good as it does!
* Donald Duck = Luck (an example of rhyming slang!)
OK, for the sake of clarity in UK/South American communications, let me explain!
A 'Bit Mickey Mouse' in this context means 'not complicated or highly developed'.
A 'Bit Mickey Mouse' in this context means 'not complicated or highly developed'.
mga2009,
Zilch ( Evan ) worked up a few eWave designs using Eminence woofers ( plus one using the DelatLite 2510 and an Eighteen Sound waveguide ).
See;
From the Flex-Your-PCD-Mettle!
If you don't want to spend the $$ on importing the B&C de250 driver, then consider simply lashing up a PRV Audio D290Py-B in place of the de250.
No doubt the HiPass will need some tweeking due to the driver swap, but that's help that you can get here if you provide FRD + ZMA files ( for the PRV driver on the 18Sound horn ).
- You'd need to download REW and then buy a UMIK-1 test mic to get the data to create those files ( but you should have REW anyways for other HT purposes ).
Do you have access to Celestion products?
The cdx1-1745 driver is very good.
🙂
Zilch ( Evan ) worked up a few eWave designs using Eminence woofers ( plus one using the DelatLite 2510 and an Eighteen Sound waveguide ).
See;
From the Flex-Your-PCD-Mettle!
If you don't want to spend the $$ on importing the B&C de250 driver, then consider simply lashing up a PRV Audio D290Py-B in place of the de250.
No doubt the HiPass will need some tweeking due to the driver swap, but that's help that you can get here if you provide FRD + ZMA files ( for the PRV driver on the 18Sound horn ).
- You'd need to download REW and then buy a UMIK-1 test mic to get the data to create those files ( but you should have REW anyways for other HT purposes ).
Do you have access to Celestion products?
The cdx1-1745 driver is very good.
🙂
Last edited:
Eminence Deltalite 2510 has huge peak between 1.5 and 3 kHz. Much better and smoother are Delta Pro-12A and 18Sound 10W500.
That's true enough, though I have to point out that the 2510 has already passed the "workability" test ( so-to-speak ) with a handful of network designers.
The DIYSG HTM-10 being one such notable example of a very successful design that uses this woofer .
A simple parallel notch filter that incorporates the lowpass's first inductor, helps attenuate that offending spike ( as does the steeper slope of a 3-pole filter ).
- The extra 2 components for the notch are cheap enough.
I figure that there's a similar approach taken, here in the displayed HTM-12 network ( which uses the Eminence 2512 ).
Some of us have somewhat traveled down this road before!
😉
Attachments
Last edited:
Something like this would work well for you--the recommended enclosure would be 37.5 cm wide.
Denovo Audio HTM-10
I would email Erich from their web page and explain to him you want just the horn, compression driver and crossover parts--delete the bezel and Deltalite 10" from the kit for credit. That would get the shipping and size of the box really small and you can purchase a pair of the Deltalite drivers locally. The compression drivers are made by B&C and the crossover parts are high quality polypropylene with air core inductors.
Just an option, I'm sure for the pair, a set of horns with compression drivers and crossover parts should not exceed 10 kg in shipping charges.
Good luck with your build!
Ohh! Now is understand the "mickey mouse" reference!
EarlK, thanks for your reply. I will check Zilch thread, seems very through. I will the the availability for the parts. I do have a calibrated UMIK and I am starting to learn REW (for now only used for PEQ my PC audio).
18Hurts, thanks for your reply! The DIYSG HTM-10 looks very nice! I already bough a kit from them a few years ago. The kit was a Fusion 6, also designed by Matt Grant. I think Erich does not sell separate parts, because he buys all the parts for kit's, so if he sells some kits without the woofer then he will have them for spare. I also noticed the SEAOS12 is out of stock.
EarlK, thanks for your reply. I will check Zilch thread, seems very through. I will the the availability for the parts. I do have a calibrated UMIK and I am starting to learn REW (for now only used for PEQ my PC audio).
18Hurts, thanks for your reply! The DIYSG HTM-10 looks very nice! I already bough a kit from them a few years ago. The kit was a Fusion 6, also designed by Matt Grant. I think Erich does not sell separate parts, because he buys all the parts for kit's, so if he sells some kits without the woofer then he will have them for spare. I also noticed the SEAOS12 is out of stock.
Yes, Deltalite 2510 is workable and is used in a successful design, but Delta Pro-12A has much higher sensitivity and smoother response. Low-pass filter for Delta Pro-12A will be simpler and cheaper, also.
Great info! Here in my country the Deltalite 10" and de Delta Pro 12A cost exactly the same.
Well, I won't argue against smoother, higher sensitivity, cheaper & easier to design for.
Do you have a network design ready to go?
🙂
Do you have a network design ready to go?
🙂
Last edited:
I noticed Zilch's EconoWave 5 used the Deltalite 10" + B&C DE250 + 18sound XT1086 waveguide, and DIYSG HTM10 uses the same Deltalite 10" + Denovo DNA325 CD (optimized version -goes lower and higher- of the DE250) + SEOS12 (optimized version of the XT1086??)
I will start my research on Zilch's Econowave and see of I can get all the parts locally.
- Status
- Not open for further replies.