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I have used the 15.2 subs. I loved them..Man could they take the power. Finding the right box size takes some work though. Do NOT go with the DEI/Orion specs - they are NOT right.
But yes, I loved my H2 subs. Recently traded them for the P-Series 12.4 subs - I like them alot as well. Much more efficient. Just cant quite take as much power....but still. I went from 2 H2 15.2's to 4 P-12.4's. So it was a fair swap.
Good luck with them - I had great success.
Posts: 1320 | From: Lawrence, KS | Registered: Jun 2005
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I've done a lot of testing with my 10" Orion h2s and have found what kind of enclosures are wise for certain power levels. Orions recommendations are completely rediculous and shouldn't be even talked about since they recommend so much less airspace and port than is neccesary in the real world. These subs are acutally a large box sub in comparison to most sub's today with similar power ratings. They are built quite solid and and having excellent effeciency and SQ in the correct enclosure so in my eyes it is one of the best bargains available today in the 2000WRMS arena. If you plan on trying these subs get some help on here for enclosure details and build one yourself if possible. I'm comtemplating a 1/4 wave for 3 Orion H2 10s soon and if I see the results I'm aiming for I'd love to share and see some more try and duplicate it.
-------------------- SQL Setup (2)Orion H2 10" 39HZ 1/4 Wave w/ 2.5CF 39HZ chamber 2400WRMS signal Another sub and amp and more elaborate 1/4 wave coming soon...
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thanks everyone i appreciate the help also if anyone knows the best enclosure size for the 15 that would really help. thanks
Posts: 3 | From: St.louis | Registered: Dec 2005
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depends on your SPL/SQ preferences and power you plan on using. If you're going to use 2000WRMS which is typical and are going for SQL where it sounds good and gets loud pretty much in both respects I'd recommend about 4.0CF NET with 35HZ tuning and 1.3CF of port displacement. Play around with WinISD with a 4.0CF NET airspace with 35HZ tuning and adjust the port size until it's area X depth equals 1.3CF.
-------------------- SQL Setup (2)Orion H2 10" 39HZ 1/4 Wave w/ 2.5CF 39HZ chamber 2400WRMS signal Another sub and amp and more elaborate 1/4 wave coming soon...
quote:Originally posted by LuckyT: For a 15 go with a 3 cubic foot enclosure, with 30hz tuning and 30 sq inch of port. Will work nicely
A 30sqin port tuned to 30HZ in 3.0CF NET only displaces .43CF and will only harness the full charge of that 120sqin cone up to about 0.5"-0.6" peak to peak. With 2000WRMS even in that smaller home it'll still be pushing near 2.0" on it's notes that aren't right around tuning. I actually modeled the 15" since I listed my recommendation and rethought what it should be. Of course the model may not be entirely true, my earlier recommendation was a scaled up box from my 10" h2 which is proven with multiple rebuilds but my new recommendation would be:
4.0CF NET with 30HZ tuning through 1.5CF of port which would come to a 50-55sqin port that is about 48" deep.
-------------------- SQL Setup (2)Orion H2 10" 39HZ 1/4 Wave w/ 2.5CF 39HZ chamber 2400WRMS signal Another sub and amp and more elaborate 1/4 wave coming soon...
quote:Originally posted by LuckyT: For a 15 go with a 3 cubic foot enclosure, with 30hz tuning and 30 sq inch of port. Will work nicely
A 30sqin port tuned to 30HZ in 3.0CF NET only displaces .43CF and will only harness the full charge of that 120sqin cone up to about 0.5"-0.6" peak to peak. With 2000WRMS even in that smaller home it'll still be pushing near 2.0" on it's notes that aren't right around tuning. I actually modeled the 15" since I listed my recommendation and rethought what it should be. Of course the model may not be entirely true, my earlier recommendation was a scaled up box from my 10" h2 which is proven with multiple rebuilds but my new recommendation would be:
4.0CF NET with 30HZ tuning through 1.5CF of port which would come to a 50-55sqin port that is about 48" deep.
I have a 10.2 and plan on running it with 1200w, what would you suggest for sealed volume?
Posts: 28 | From: Medford, OR | Registered: Dec 2000
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quote:Originally posted by LuckyT: The reccomendation I made isn't modeled. programs and theory will only take you so far
My 1st recommendation is purely off of real world testing so maybe he should just take that. A program like WinISD actually has some real accuracy after you find a model that matches it in real life(this is not always easy though). From there you can can use the program to really see what adjusting tuning and airspace will do without all the rebuilds.
ZR28: I recommend a sealed volume for your H2 10.2 to be 1.0CF NET which will allow it to handle a full 1200WRMS mechanically down to at least 30HZ. Good output too compared to larger or smaller sizes near that volume. I do highly urge against even trying these sealed though unless you already have the sub and have no more than about 1.4-1.5CF gross to dedicate to the sub.
-------------------- SQL Setup (2)Orion H2 10" 39HZ 1/4 Wave w/ 2.5CF 39HZ chamber 2400WRMS signal Another sub and amp and more elaborate 1/4 wave coming soon...
quote:Originally posted by LuckyT: The reccomendation I made isn't modeled. programs and theory will only take you so far
ZR28: I recommend a sealed volume for your H2 10.2 to be 1.0CF NET which will allow it to handle a full 1200WRMS mechanically down to at least 30HZ. Good output too compared to larger or smaller sizes near that volume. I do highly urge against even trying these sealed though unless you already have the sub and have no more than about 1.4-1.5CF gross to dedicate to the sub.
I can allocate more space - I have an 04 Silverado Ext Cab, Under the seat I have probably 3 cubes total space if I try to utilize all of it, it would require some handy wood work but i'm sure it could be done.
If you think ported is by far much better then, I'm willing to try that. The spec's Orion gives make it hard to make a port in such a small area given. I havn't made a maze type port before, or come to think of it any ported enclosure, only sealed.
Thanks.
Posts: 28 | From: Medford, OR | Registered: Dec 2000
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i ran the h2's 15's for 2 seasons. LuckyT is giving advice based on most of my tests with them. When you start opening up the port like Good240 reccommends, you start losing back pressure on the sub, and losing reliability. As much as his theory sounds good, it just doesnt work in the real-world applications with this woofer. Without the back pressure, and since the suspension of this woofer is loose, your going to run into failures. with less watts, you can get away with having more box and more port, but you start getting 2000watts plus, you better have it down pact. I fried plenty of woofers getting it right, and had the best success with scores and keeping the woofer alive with 3 cubes net per woofer, 30 square inches of vent, tuned to 32 hertz. i was running 4 1200d's per h2 15.
but hey, what do i know? Theory is plenty, right? Is theory gonna pay shipping when you blow up the woofer?
-------------------- "14 is like the new 20" Posts: 9267 | From: over yonder | Registered: May 2001
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quote:Originally posted by HCCAfan is back: i ran the h2's 15's for 2 seasons. LuckyT is giving advice based on most of my tests with them. When you start opening up the port like Good240 reccommends, you start losing back pressure on the sub, and losing reliability. As much as his theory sounds good, it just doesnt work in the real-world applications with this woofer. Without the back pressure, and since the suspension of this woofer is loose, your going to run into failures. with less watts, you can get away with having more box and more port, but you start getting 2000watts plus, you better have it down pact. I fried plenty of woofers getting it right, and had the best success with scores and keeping the woofer alive with 3 cubes net per woofer, 30 square inches of vent, tuned to 32 hertz. i was running 4 1200d's per h2 15.
but hey, what do i know? Theory is plenty, right? Is theory gonna pay shipping when you blow up the woofer?
The additional port area and port depth(port displacement when coupled) doesn't affect the cushion or resistance the sub feels behind it. This is why having more port displacement doesn't affect power handling or cone excursion at all. Having additional port area with out additional depth increases tuning and has dramatic affects on cone excursion and sometimes power handling. This must be what you're confusing it with.
It is also true that with more wattage you have to have less box volume and in my situation with my H2 10s I'd have to lower the net airspace to use RMS power of 2000-2500WRMS but I'm only giving them 1200WRMS a piece and the additional space is very helpful of SQ and SPL.
I'm quite sure with your 4800WRMS per 15" driver you're not going to run my recommendation of 4.0CF NET with 30HZ tuning. Your port area is definetly holding back your scores but to test this you'll have to rebuild completely and have much larger box demensions and this may not be possible in your vehicle.
-------------------- SQL Setup (2)Orion H2 10" 39HZ 1/4 Wave w/ 2.5CF 39HZ chamber 2400WRMS signal Another sub and amp and more elaborate 1/4 wave coming soon...
quote: It is also true that with more wattage you have to have less box volume and in my situation with my H2 10s I'd have to lower the net airspace to use RMS power of 2000-2500WRMS but I'm only giving them 1200WRMS a piece and the additional space is very helpful of SQ and SPL.
What air space and port area are you using? I have a 10 with 1200watts also.
Posts: 28 | From: Medford, OR | Registered: Dec 2000
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quote: It is also true that with more wattage you have to have less box volume and in my situation with my H2 10s I'd have to lower the net airspace to use RMS power of 2000-2500WRMS but I'm only giving them 1200WRMS a piece and the additional space is very helpful of SQ and SPL.
What air space and port area are you using? I have a 10 with 1200watts also.
I'm currently putting out the best sound so far with a 1/4 wave listed in my signature(pictured below) but for a ported enclosure with 1200WRMS I might recommend my previous of 3.5CF with 39HZ tuning through 1.5CF of port for SQL(even this output depends on the vehicle). It really depends on your SQ/SPL preference when you have some good airspace to dedicate.
Bleedin Eardrums(well, not you solely): If it makes sound who the hell cares... what does it matter if there is more potential output to be had. You'll never know it's missing after all. Who needs it?
-------------------- SQL Setup (2)Orion H2 10" 39HZ 1/4 Wave w/ 2.5CF 39HZ chamber 2400WRMS signal Another sub and amp and more elaborate 1/4 wave coming soon...
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