Why aren't there more 1260w 1262w builds? - AVS | Home Theater Discussions And Reviews
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post #1 of 41 Old 03-06-2015, 03:14 PM - Thread Starter
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Why aren't there more 1260w 1262w builds?

Looks like 4 of these in 9-10 cu with a 15hz tune can do 112db at 16hz, 115 at 20hz and up to 122db at 80hz with just 1300w.

Am I missing something or should there be a TON of these being built???

I am thinking something using 2 dual opposed vented could be reaaally nice.

Maybe put a few of those around the room... One behind the MLP
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post #2 of 41 Old 03-06-2015, 03:20 PM
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Nope. You're not missing anything. There are just other popular drivers people tend to go with.

You should start a trend, Goon.

Go for it!

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post #3 of 41 Old 03-06-2015, 03:20 PM
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I'm working on it!

Going to build a 4 cubic foot (115 liter) internal box with an 18" passive radiator tuned to 19Hz next month. If that goes well, pondering building two more but transmission lines and the PR version will be near field. The next two will be made as speaker stands for the front stage.

Some nut is building a pair of subs with 16 of the Infinities in a sealed box (16 in each box!) I'd say the issue, although an inexpensive driver is the wood, duratex, feet, connectors etc. add to the price so always looking for a bit extra in that range. I'm still reading over the details of the 1260 to get it all lined up correctly.

My wife won't put up with 9 cubic foot beasts--bummer, I'd love to do a push-pull slot load with a pair of Infinities.
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post #4 of 41 Old 03-06-2015, 03:41 PM
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Why aren't there more 1260w 1262w builds?

I'm not sure that 3-4 of them has much of an advantage over an HT18 for general HT usage. I've got two in sealed boxes in my bedroom, and they're quite nice. I plan to make a pair of front loaded horns sometime this year.

Great bang for your buck with the Infinity 12s. There's also a JBL GTO1514 which is nice, performs about like two of the 12s.

Last edited by rhodesj; 03-06-2015 at 05:11 PM.
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post #5 of 41 Old 03-06-2015, 03:42 PM
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125db from two in a tapped horn for $120 in drivers
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post #6 of 41 Old 03-06-2015, 05:40 PM
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Quote:
Originally Posted by 18Hurts View Post
I'm working on it!
My wife won't put up with 9 cubic foot beasts--bummer, I'd love to do a push-pull slot load with a pair of Infinities.

not sure how much the slot is contributing to the effect you are looking for. push pull reduces 2nd distortion pretty well though.


the m&k were push pull with a fairly decent waf.



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post #7 of 41 Old 03-06-2015, 05:44 PM
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Quote:
Originally Posted by Mfusick View Post
125db from two in a tapped horn for $120 in drivers
at 16mm excursion? at what frequency?

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post #8 of 41 Old 03-06-2015, 05:56 PM
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Quote:
Originally Posted by goonstopher View Post
Looks like 4 of these in 9-10 cu with a 15hz tune can do 112db at 16hz, 115 at 20hz and up to 122db at 80hz with just 1300w.
Quote:
Originally Posted by 18Hurts
Some nut is building a pair of subs with 16 of the Infinities in a sealed box (16 in each box!)
Don't know that I'd go with the term "nut", there's some good reasoning behind the build (albeit more extreme than many would take on):
16 x 12" Sealed sub cabinet

5 1260s in a 32Hx32Wx24D box like LTD02 mocked up in the above thread with only 750W kicks out some big SPL, according to the modeling I've done. Wish I had a spot to place something like that...
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post #9 of 41 Old 03-06-2015, 06:07 PM
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Quote:
Originally Posted by LTD02 View Post
at 16mm excursion? at what frequency?
18hz or so... I can't take credit for the design though. Lilmike helping me. Rubber hits the road when it measures as good or better as simulated though.

He did a pair of Alpine type R full throttle and 1 meter groundplane was over 130db, Infinity not going to quite do that but shave off 6db or so and they are still amazing for $120 in drivers. Poor boy DTS10. Title of this thread reminds me of that, I too feel the same. The forum should be flooded with something like this, but no one knows really how to design it quite right. Double driver tapped horns is a territory perhaps only Ivan and Tom have really ventured into. It's where I want to go... I like to push things if I can. I'm more interested in projects like that.

But OP is right, the infinity 1260 is great for just about anything given it's low price. It works ported and sealed really nice too. I have made both a ported and a sealed 1260 build and both surpassed my expectations. It's no LMS but it's surprisingly good for only $60. It will stomp hard any $500 commercial subwoofer I know of.

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post #10 of 41 Old 03-06-2015, 06:35 PM
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yeah...its almost comical that such a budget driver seems to perform so well.

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post #11 of 41 Old 03-06-2015, 06:40 PM
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Quote:
Originally Posted by LTD02 View Post
yeah...its almost comical that such a budget driver seems to perform so well.
It certainly makes you smile. One of those ported at 20hz in a simple 24" cube (aka marty style) is literally the ultimate bang for your buck. It's everything someone that is normal would ever want or need. $100 to make it, including the driver. That is comical.

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post #12 of 41 Old 03-06-2015, 07:06 PM
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with respect to the horn in development...here's a thought:
the infinity drivers are SO cheap that the cost of the wood to build a horn may be more than buying additional drivers.

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post #13 of 41 Old 03-06-2015, 08:02 PM
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Quote:
Originally Posted by LTD02 View Post
yeah...its almost comical that such a budget driver seems to perform so well.
I'm so temped to buy one of these for my new Infiniti. It's matches the paint (wife pointed that out, lol) and I keep hearing good things. I'm thinking about a 1cuft Sealed enclosure with a 500 watt mono amp. Should be enough power for it?
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post #14 of 41 Old 03-06-2015, 10:06 PM
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Quote:
Originally Posted by goonstopher View Post
Why aren't there more 1260w 1262w builds?

Because I bought them all.
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post #15 of 41 Old 03-07-2015, 06:58 AM
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Quote:
Originally Posted by LTD02 View Post
not sure how much the slot is contributing to the effect you are looking for. push pull reduces 2nd distortion pretty well though.
I have a pair of 9 cubic foot internal air space dual 15" ported to 28Hz subwoofers in the garage. Then add in the slot size, port size etc. and those subs are very large! Very clean, controlled bass as the push-pull loading seems to work well. My suffering wife made the comment how those beasts are staying in the garage and not allowed in the house so...

The max she puts up with is around 4 cubic feet so that knocks out dual 1262 push-pull slot loads. The slot is great for the garage, it protects the woofers from feet, flying parts etc. and has a unique look.

The max amount of 4 cubic foot subs is 3 in the living room--the PR sub vibrates strongly since it has only one PR so gives the butt kicker effect on the wood floors. It will go near field with a new pair of subs to be made as speaker stands.

One day I can do the more is better 16 sub box version after I wire in some more breakers--and just make a new wall out of them so my wife won't notice.

It will be awhile, there is a global shortage on those drivers for awhile...
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Last edited by 18Hurts; 03-07-2015 at 07:01 AM. Reason: brain dead
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post #16 of 41 Old 03-07-2015, 07:23 AM
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Quote:
Originally Posted by LTD02 View Post
with respect to the horn in development...here's a thought:
the infinity drivers are SO cheap that the cost of the wood to build a horn may be more than buying additional drivers.
To a certain point, but if you are doing duals, the cost of wood gets divided and becomes a not so important issue.

125db from $120 in drivers is pretty good. If your driver cost is $1 to 1db... that seems about the golden ratio.

The cost of 4 or 5 sheets of wood certainly matters, but it's rarely over $200 to make a cabinet, and can be a lot cheaper if you find a deal or use something like OSB. You don't need BB to make a horn.

So lets just round up and say it's $350 for drivers, in cabinet, with speaker terminals/glue/screws. That's an amazing deal.

A marty is $175 woofer + say $60-$100 or so... (really two sheets if you want to do it right) so $275. Great deal too.

Those are the two best deals going. The infinity in a ported is a deal as well, or two of them.

What does two infinity in a single 2x4 foot enclosure at 20hz measure? I'd assume it's pretty good too. I hear totally what you are saying, when these drivers are that cheap you kind of need to double them up so it's two drivers per wood purchase to keep the value maximized.

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post #17 of 41 Old 03-07-2015, 07:47 AM
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Quote:
Originally Posted by likelinus View Post
I'm so temped to buy one of these for my new Infiniti. It's matches the paint (wife pointed that out, lol) and I keep hearing good things. I'm thinking about a 1cuft Sealed enclosure with a 500 watt mono amp. Should be enough power for it?
an infinity wrapped inside an infiniti, sounds like some sort of advanced math concept. :-)
in a car, you get huge cabin gain, but I think the driver is only "rated" for 300 rms. check on that and try not to clip the amp too much and it should still produce quite a bit of spl.
for an extra $60 or so, I'd probably go with the alpine swr12 and have less concerns about blowing it up.

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post #18 of 41 Old 03-07-2015, 07:58 AM
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Quote:
Originally Posted by Mfusick View Post
What does two infinity in a single 2x4 foot enclosure at 20hz measure? I'd assume it's pretty good too. I hear totally what you are saying, when these drivers are that cheap you kind of need to double them up so it's two drivers per wood purchase to keep the value maximized.
limiting to 16mm excursion and 500 watts per driver (two cabs, four drivers total):
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post #19 of 41 Old 03-07-2015, 10:11 AM
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Quote:
Originally Posted by LTD02 View Post
an infinity wrapped inside an infiniti, sounds like some sort of advanced math concept. :-)
in a car, you get huge cabin gain, but I think the driver is only "rated" for 300 rms. check on that and try not to clip the amp too much and it should still produce quite a bit of spl.
for an extra $60 or so, I'd probably go with the alpine swr12 and have less concerns about blowing it up.
I haven't purchased anything as of this moment, but I was going to hit up Amazon and look around at amps and subs sometime this weekend. For some reason I thought the infinity subs were rated for 600watts rms, but I must be mistaken because I was also looking at an Alpine and JL option as well. I have a left over PPI amp that puts out 360 at 4ohm, so that may be an option. Need to do more research though.

Thanks for the swr12 suggestion, will certainly look into it. I think the one I looked at was a Type R? Cant remember lol
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post #20 of 41 Old 03-07-2015, 10:18 AM
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I got a jbl gto 1514 on the advice of others in the forum. But I've been doing some more modeling for dual opposed sealed and in some ways i like the infinity better bc it is happier with less volume and i could use a smaller sonotube. Also the cone of the jbl is quite ugly compared to the infinity.

With nz prices i can buy 5 or 6x 1260w for the price of 1x daytom um18.

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post #21 of 41 Old 03-07-2015, 10:58 AM
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Call sonicelectronics and order over the phone to get a better price than the inet price for the 1260W's. I got them for $53.95 shipped and saved $8 per sub $256 total. I didn't call anyone else tho, there might be better deals if you call around.
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post #22 of 41 Old 03-07-2015, 02:34 PM
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Would a single 1260w or 1262w outperform a Dayton DVC310-88 12" in a sealed cabinet of approximately 1.5 internal cubic feet? This would be for musical accuracy only. No home theater.

https://www.parts-express.com/dayton...oofer--295-185

Thanks.


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post #23 of 41 Old 03-07-2015, 03:03 PM
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I have the dayton rss315hf-4 12" and it sounds very good. The specs state it has triple shorting rings to reduce distortion which I know very little about. But it is one of the cleaner sounding small subs I've heard. It models perfectly flat in 4ft3 at 20hz.
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post #24 of 41 Old 03-07-2015, 03:26 PM
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Quote:
Originally Posted by Doctor Morbius View Post
Would a single 1260w or 1262w outperform a Dayton DVC310-88 12" in a sealed cabinet of approximately 1.5 internal cubic feet? This would be for musical accuracy only. No home theater.

https://www.parts-express.com/dayton...oofer--295-185

Thanks.

The DVC is a higher (build)quality unit with a bit more throw and power handling. I'm not seeing any reason why it would subjectively sound better though. Something from the RSS or UM line would probably be a better bet as they each have advanced motor designs.
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post #25 of 41 Old 03-07-2015, 05:10 PM
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Thanks guys!


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post #26 of 41 Old 03-08-2015, 10:33 AM
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Would like to reuse two old mdf boxes for two 1260. Just a quick project for my father. The boxes are about 104 liters. They already have a slot port that is 40x7cm. It`s only 25cm long now, but can easily be extended. Could anyone help with what length it should be for 20hz tune..?

Edit: I`ve tried to wrap my head around winisd several times, but somehow I just don`t "get it". In that regard, yes I am a dodo head.

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post #27 of 41 Old 03-08-2015, 12:00 PM
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Here is my diy dual opposed sealed 1262w with a Yung 300-6 amp. Cabinet external is 17 by 24 by 24.
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post #28 of 41 Old 03-08-2015, 12:16 PM
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Quote:
Originally Posted by gogothedodo View Post
Would like to reuse two old mdf boxes for two 1260. Just a quick project for my father. The boxes are about 104 liters. They already have a slot port that is 40x7cm. It`s only 25cm long now, but can easily be extended. Could anyone help with what length it should be for 20hz tune..?

Edit: I`ve tried to wrap my head around winisd several times, but somehow I just don`t "get it". In that regard, yes I am a dodo head.
My modeling shows a port 203cm long to reach a 20Hz tune in that box, and a first port resonance of 84.4Hz. Doesn't seem like a good combination.

If you can get the port down to 4cm tall, then it would take a 114cm long port to tune to 20Hz, first port resonance of ~151Hz.
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post #29 of 41 Old 03-08-2015, 12:32 PM
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in a 104 liter cab, 20hz is too low. better would be about a 23-24hz tuning or so. what you have not is about 32hz.


doubling the port length will drop the tuning to around 24hz. that is about the best compromise with that enclosure.

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post #30 of 41 Old 03-08-2015, 02:56 PM
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Oh well.. Back to the drawing board. Thank you for your time gentlemen.
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