Ciare 15.00sw's in EV-TL4025 W Bins. Help? - diyAudio
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Old 6th July 2013, 07:02 PM   #1
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Default Ciare 15.00sw's in EV-TL4025 W Bins. Help?

So i have had the Ciare 15.00sw's for years just waiting for some cheap enclosures to go up on craigslist. Then finally my wish came true. A ton of EV TL-4025 bins for 100$ a piece. I bought two to test them out. I built a gasket out of 7ply birch to allow for the deep xmax, and added some chunky bolts and new recessed speakon receptacles. I am powering them with each a bridged QSC 3602. Anyways ... They sound incredible, and I am about to dampen and seal the driver cavity panel. I am curious, however, that because the Ciare is so much larger than the EVM 15L that the enclosure was intended for, if the pressure in the driver cavity would be better off sealed or somewhat vented? Any suggestions would be greatly appreciated.
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Old 8th July 2013, 01:23 AM   #2
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You say that your final result is good.
Isn't the cavity in the back of the folded horn sealed?
I don't see much of a difference in a typical realization of a horn system for both drivers, besides their main different specs.
EVM 15L (in a 10L back enclosure) horn
Fs = 217.1 Hz
Low frequency cut = 49.7 Hz (*)
Ciare 15.00 SW (in a 10L back enclosure) horn
Fs = 112.7 Hz
Low frequency cut = 41.0 Hz (*)
*) reference to Mario ROSSI LF and HF limits for a horn system.
The specs Qts = 0.241 for the EV, for it's use in a horn system are very good and Ciare Qts = 0.420 is not so good.
I don't see how a vented or sealed question play it's role in here besides an enclosure adapted for each driver in this case a horn or in the case of the Ciare a possible use as a BR, but with high F3 close to 42Hz in an ideal 72.3 L enclosure tuned to 29.0 Hz, not really a sub for what it is intended.
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Old 8th July 2013, 05:44 PM   #4
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thank you for the response, although I am not sure what to make of some of the information you provided. The boxes are meant to be sealed, however, the enclosures have all been gutted leaving just an open driver cavity. I made new panels for the driver cavities but i just screwed them on temporarily to test them. My question was concerning the difference in pressure on the back of the speaker. The same volume of air remains in front of the speaker, yet, the volume of the driver cavity has been reduced. I wasn't sure if this would be a problem, or if I should just seal up the panel airtight. Also, these enclosures are enormous! An ideal horn loaded enclosure for these speakers would be larger??
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Old 9th July 2013, 02:52 PM   #5
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Quote:
Originally Posted by livemusicjones View Post
...My question was concerning the difference in pressure on the back of the speaker. The same volume of air remains in front of the speaker, yet, the volume of the driver cavity has been reduced. I wasn't sure if this would be a problem, or if I should just seal up the panel airtight. Also, these enclosures are enormous! An ideal horn loaded enclosure for these speakers would be larger??
Ok, a speaker/enclosure designed specifically for that driver would be a different beast, and t. why I couldn't address your post with a better answer. Just a starting point to see what your problem was. I'm not really in the process of designing subs (software/experience), other members are. And obviously the best bet for your new design, because your setup is not taking advantage of the driver qualities. Anyway, with the specs list for this driver makes it adapted for BR types of enclosure (not very low f. extension) or Quarter-waves, that you could try with a new project designed specifically for it. In the mean time enjoy your subs in the horn format.
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Old 9th July 2013, 05:34 PM   #6
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Quote:
Originally Posted by livemusicjones View Post
I am curious, however, that because the Ciare is so much larger than the EVM 15L that the enclosure was intended for, if the pressure in the driver cavity would be better off sealed or somewhat vented? Any suggestions would be greatly appreciated.
The additional driver volume and the addition of a gasket are not a great reduction in compression chamber volume.
Leave the compression chamber sealed, as designed.
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Old 12th July 2013, 02:25 AM   #7
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thanks weltersys and inducter. i installed some rta software so when i figure that out i will post the results. i have yet to do a side by side, but i feel they sound as good or better than the dual 18" McCauley subs I currently run. i plan on building 4-6 more of these! i can't wait to hear what three per side or six laid out end to end in front of a stage sound like. the throw on the two I made so far is a world apart from my BR boxes.
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