Hello,
I’m searching for drawings or advices about how to calculate for a synergy horn fitting two 10” fane sovereign 10-300 and one 1” Sica 120.44/640 Poly. The enclosure should be 660mm wide, it’s the only demand I’ve got since it must fit my subs underneath. Otherwise I’m totally open for suggestions regarding shape or technique.
Anyone got something fun in the drawers? 🙂
I’m searching for drawings or advices about how to calculate for a synergy horn fitting two 10” fane sovereign 10-300 and one 1” Sica 120.44/640 Poly. The enclosure should be 660mm wide, it’s the only demand I’ve got since it must fit my subs underneath. Otherwise I’m totally open for suggestions regarding shape or technique.
Anyone got something fun in the drawers? 🙂
You're really going to struggle with this one.
A 1" HF driver rarely gets below 1kHz. Basically never, in PA use. 2kHz would be more like it. 10"s in a Synergy aren't likely to get above about 700Hz.
So, you've got 700Hz-2kHz that needs to be filled in.
A 3-way setup would do the job, using a few 3" or 4" mids to fill in that gap. You could also use a larger compression driver, which will handle the lower crossover point.
Chris
A 1" HF driver rarely gets below 1kHz. Basically never, in PA use. 2kHz would be more like it. 10"s in a Synergy aren't likely to get above about 700Hz.
So, you've got 700Hz-2kHz that needs to be filled in.
A 3-way setup would do the job, using a few 3" or 4" mids to fill in that gap. You could also use a larger compression driver, which will handle the lower crossover point.
Chris
Oh, actually didn't know this! Good answer and it also explains a lot why the synergy horns I find got some other configurations. My 1" drivers goes down to just about 1.6khz so I guess I need a 3-way solution if I'm going for a synergy horn then, and I'll probably not do that. So I'm pretty much skipping the whole idea and instead going for some other enclosures. Thanks a lot!
Short thread, case closed...
Short thread, case closed...
No problem. Better to find out early, I suppose.
You could still do the setup you're thinking of - there are plenty of midranges out there that'll fill the gap if you're set on a Synergy design.
Chris
You could still do the setup you're thinking of - there are plenty of midranges out there that'll fill the gap if you're set on a Synergy design.
Chris
True! Yeah and midrange drivers aren't that expensive. The thing is that I'm already up to a 4 way active system and adding midrange drivers would make it 5 way if I'm not doing the synergy horn a passive fullrange enclosure counting as one way. The question would be; is it worth it? My intention was to build a couple of replica pieces of the Seeburg K20 as tops, and if not the Synergy would replace these.
SEEBURG acoustic line | K 20
The Synergy is a cool looking box and interesting in many ways, but will it outcompete the K20? Is it worth the time and effort to make it?
The K20 acts as a hybrid horn/basreflex box as I understand it. Small formfactor and really okey specs!
SEEBURG acoustic line | K 20
The Synergy is a cool looking box and interesting in many ways, but will it outcompete the K20? Is it worth the time and effort to make it?
The K20 acts as a hybrid horn/basreflex box as I understand it. Small formfactor and really okey specs!
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Those K20s are basically direct-radiating. The very shallow V-shaped baffle won't do anything useful in terms of horn-loading. It does allow a compact cabinet, though.
With the mid-high drivers you have at the moment, I'd build a pair of 2x10"+HF boxes for >120Hz, and use a couple of ported 18"s per side to cover below that.
Nice simple 3-way system.
Splitting the LF range (as you appear to be planning) introduces more difficulties in getting the system set up correctly. It's worth the difficulty for a large-format system (search Nexo Alpha for an idea), but for a system using a single 1" HF driver per side? I wouldn't bother. With a few good 18"s, your mid-high range will run out of steam first.
Chris
With the mid-high drivers you have at the moment, I'd build a pair of 2x10"+HF boxes for >120Hz, and use a couple of ported 18"s per side to cover below that.
Nice simple 3-way system.
Splitting the LF range (as you appear to be planning) introduces more difficulties in getting the system set up correctly. It's worth the difficulty for a large-format system (search Nexo Alpha for an idea), but for a system using a single 1" HF driver per side? I wouldn't bother. With a few good 18"s, your mid-high range will run out of steam first.
Chris
My plan is the following per side:
One Paraflex C-2E 1x15” Sub 20-80hz
One Paraflex C-2D 1x15” Kick bin 80-180hz ish
Two or four Mid 10” 180hz-1.6khz
One or two Top 1” 1.6khz-20khz
With this in mind, I don’t need to go further down than 180-200hz with the kick bin, but if I want a compact system and use only sub and mid+Hf for say one event it would be nice if the mid could do at least 120hz (80hz is even better), as you described. The sub box is good for 160hz at least, but ofc adds a lot direction with such high frequencies.
My intention is to have a very flexible and small system. Just playing with the thoughts of a synergy horn because I like the looks of it. I could as well build four pieces of the K20 if two isn’t enough.
So with this explained. The V-shape on the K20 maybe just adds up a bit extra horizontal dispersion rather than functioning as a horn? Is it still worth considering a Synergy horn? 120db SPL Mid and high is good enough for my application I would say since I won’t be use the system for more than 50ppl..
The C-2E only goes down to 35Hz it needs to be used with a high pass filter. This will sound fine though in terms of hitting the low notes on most music, just don't try and play 20Hz sine waves through it at full power or you might kill your driver.
Perhaps you could scale the 2*8" paraflex top to 10" drivers?
Perhaps you could scale the 2*8" paraflex top to 10" drivers?
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turns out there is a 2*10" top design from the high order quarterwave society:
High Order Quarterwave Society (DIY Paraflex & Super Planar dev community) Public Group | Facebook
90Hz - 2,000Hz (w/ Phase plugs, may be less without)
seems to meet your requirements. Your HF horn would go at the front.
High Order Quarterwave Society (DIY Paraflex & Super Planar dev community) Public Group | Facebook
90Hz - 2,000Hz (w/ Phase plugs, may be less without)
seems to meet your requirements. Your HF horn would go at the front.
I'm not convinced of the wisdom of using a 15" up to 80Hz, and then another up to 180Hz.
I'd use a pair of 15"s covering 35-120Hz in ported boxes instead of that 2-way setup.
Advantages:
- More modular - one box can do the job
- Removal of a crossover point - less phase shift across the band
- More LF output - there's no replacement for displacement
What're the benefits of using the two different cabinets that you're planning?
Chris
I'd use a pair of 15"s covering 35-120Hz in ported boxes instead of that 2-way setup.
Advantages:
- More modular - one box can do the job
- Removal of a crossover point - less phase shift across the band
- More LF output - there's no replacement for displacement
What're the benefits of using the two different cabinets that you're planning?
Chris