Infinity 1260/1262 information QA and build link thread - Page 19 - AVS Forum | Home Theater Discussions And Reviews
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post #541 of 576 Old 08-17-2016, 06:13 AM
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Quote:
Originally Posted by eng-399 View Post
I would do both Just ask guys what size box your looking for. If it's sealed that's easy but if ported that needs to be figured out on Winisd which might draw more Attention/help on a new thread so more guys will notice it by the thread name for your build. Hope this helps.

The 2nd or 3rd post on this thread there's a ton of builds I linked on there check them out.

Mike
I don't won't to have a discussion both here and in a new thread, so here's a new thread for anyone interested:
https://www.avsforum.com/forum/155-di...l#post46111505

It's a ported box, and I'm just looking for really final advice, in case I missed something. Generally speaking, I know what I'm doing.
I figured out the numbers for the most part, I just need that final OK from people who know this stuff better than me, so I could finally order the box from the carpenter.

Thanks.
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post #542 of 576 Old 08-18-2016, 08:01 AM
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@LTD02

Im still up against the wall as to what id like to do as far as the subs up front. I have room for 2 CYCLOPS
I know SI is supposed to come out with the HT-18v2
pretty soon but id like to weigh my options.

in your opinion what is more potent. 1 SI-HT -18 in an I-CYLCOPS 20"x24"x48" tuned to 16hz or 2 - 12" infinity 1262w in one I-CYCLOPS.

So it would be 2 -18" in 2 enclosures or 4-12" in 2 inclosures.

The infinity would be run series parallel at 4ohms being fed 840 watts.

The room is a little over 1,100 cubic feet. Its not a big room

Thanks in advance
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post #543 of 576 Old 08-18-2016, 08:34 AM
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Quote:
Originally Posted by Johnny P View Post
@LTD02

Im still up against the wall as to what id like to do as far as the subs up front. I have room for 2 CYCLOPS
I know SI is supposed to come out with the HT-18v2
pretty soon but id like to weigh my options.

in your opinion what is more potent. 1 SI-HT -18 in an I-CYLCOPS 20"x24"x48" tuned to 16hz or 2 - 12" infinity 1262w in one I-CYCLOPS.

So it would be 2 -18" in 2 enclosures or 4-12" in 2 inclosures.

The infinity would be run series parallel at 4ohms being fed 840 watts.

The room is a little over 1,100 cubic feet. Its not a big room

Thanks in advance

can't really say until the new siht18 driver is measured. sounds like it might be a good one though. the 460ho would be a good choice if you can't/don't want to wait.

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post #544 of 576 Old 08-18-2016, 09:02 AM
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can't really say until the new siht18 driver is measured. sounds like it might be a good one though. the 460ho would be a good choice if you can't/don't want to wait.
Then ill wait for the new driver to see what it measures at. In the mean time gotta put more money in the cookie jar.
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post #545 of 576 Old 09-08-2016, 11:01 PM - Thread Starter
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A sneak peek of what I'm replacing my infinity nearfield setup with. Will start a new thread very soon....here's a look next to the infinity 1260 and jbl CS1214 sub.
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post #546 of 576 Old 09-09-2016, 08:14 PM
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Whats that? And where can i get some. Jajajaj
Whats gonna happen to the 1262ws???
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post #547 of 576 Old 09-09-2016, 08:18 PM
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Whats that? And where can i get some. Jajajaj
Whats gonna happen to the 1262ws???
Those look like the 15" close out subs from Parts Express - Famous Maker or something along those lines.

------------------------------------------------
Receiver : Denon x5200
Front Stage : L/R - Statements by Jim Holtz
Surround Speakers : Klipsch RF-82II x 4 / RP-280F x 2
Subwooferage : 6 UM18/4 HT18 Subwoofer Log
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post #548 of 576 Old 09-09-2016, 08:28 PM
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Those look like the 15" close out subs from Parts Express - Famous Maker or something along those lines.
I thought i saw those before. Def got a good deal.
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post #549 of 576 Old 09-09-2016, 09:04 PM - Thread Starter
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Infinity 1260/1262 information QA and build link thread

Quote:
Originally Posted by bgtighe23 View Post
Those look like the 15" close out subs from Parts Express - Famous Maker or something along those lines.


Yep that's the ones. I did a group guy with two other guys out me. Mtg90 and another avs guy. I sent a few emails and texts out to some guys out here in the Chicago land burbs and no one really had any interest until I said there ordered and coming sorry guys and now it seems they sold out. I really should of bought 6 but bought only four instead. We got these for a better deal than advertised since ten were bought along with free shipping.

As for the 8 infinitys I'm not sure yet. The plan is to have these nearfield and see how they are first in a simple 4 cubic ft square box twos in each box but I'm finding out I had room for 6 total back there.

If these are the same as the infintys I'll build another 2 boxes and have these on each side of the first row in a ported box in 12 cubic ft boxes with 2-4" inch ports 10 inches long. Winisd shows these looking good in that unless I messed that up... One inuke 6k DSP will drive them all. Here's what they are.

They were used in this box for legacy priced at 4,200$ each

So this will be trail and error but fun doing it at the same time. Honestly if I could do it again I would of bought 32 infinity 1260's for behind my screen but that's not going to happen anymore since there gone.

Jonny P question is in this post but I'm typing this on my phone and can't double quote guys on my cell.
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Last edited by eng-399; 09-09-2016 at 09:09 PM.
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post #550 of 576 Old 09-09-2016, 09:14 PM - Thread Starter
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Infinity 1260/1262 information QA and build link thread

The boxes if ported will have an exotic veneer on them if used next the chairs in the front row it's time I stepped up my game with the box finish. Double baffle with the front cut flush with a round over since I just bought a router with the jasper jig from parts express. Kinda excited about all this. Box starts Monday afternoon.

Last edited by eng-399; 09-09-2016 at 09:34 PM.
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post #551 of 576 Old 09-10-2016, 05:07 AM
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Couldn't you find another 12" sub that you would buy 32 of?

------------------------------------------------
Receiver : Denon x5200
Front Stage : L/R - Statements by Jim Holtz
Surround Speakers : Klipsch RF-82II x 4 / RP-280F x 2
Subwooferage : 6 UM18/4 HT18 Subwoofer Log
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post #552 of 576 Old 09-10-2016, 06:11 AM
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Mike, so either way the infinity's are staying correct? Once you dial these new ones in I may just have to come up again for a demo the way its supposed to be lol....

If not I am sure you wont have ANY problem selling the infinities if you decide to part with them lol....

Or if the JBL performs almost the same as the infinities, why not just run 32 of those up front and 32 in the rear lol... They are cheap enough thats for sure.

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post #553 of 576 Old 09-10-2016, 07:24 AM - Thread Starter
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My plan is to build one box first with just two subs in it. I'll pull one infinity box out and see how the two legacy subs do against the 4-1260's. As for 32 jbl's behind the screen I've been thinking about that to. I'll have to model 32 of them in 1.75 cubic boxes and see how they look. 32-1260's had me in the 140db range.
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post #554 of 576 Old 09-10-2016, 07:42 AM
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Quote:
Originally Posted by eng-399 View Post
My plan is to build one box first with just two subs in it. I'll pull one infinity box out and see how the two legacy subs do against the 4-1260's. As for 32 jbl's behind the screen I've been thinking about that to. I'll have to model 32 of them in 1.75 cubic boxes and see how they look. 32-1260's had me in the 140db range.
An upgrade from those HT18s would add some serious gain in not only dB, but also tactile response. I was pretty surprised myself at the difference between my sealed UM-18s and the sealed HT18s. Not to mention it's going to take 10 minutes to swap out drivers and the results are there. The drivers don't have to be UM-18s, but that's just the two different 18s I have.

------------------------------------------------
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Front Stage : L/R - Statements by Jim Holtz
Surround Speakers : Klipsch RF-82II x 4 / RP-280F x 2
Subwooferage : 6 UM18/4 HT18 Subwoofer Log
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post #555 of 576 Old 09-10-2016, 08:05 AM
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Quote:
Originally Posted by eng-399 View Post
My plan is to build one box first with just two subs in it. I'll pull one infinity box out and see how the two legacy subs do against the 4-1260's. As for 32 jbl's behind the screen I've been thinking about that to. I'll have to model 32 of them in 1.75 cubic boxes and see how they look. 32-1260's had me in the 140db range.
Hell, you do 32 JBL's and I will offer to try and help with the install lol..... Lord knows your gonna need a LOT of screws and charged batterys for your cordles screwdriver lol.

Mount them all on a couple 4 x 8 1" thick pieces of plywood and your golden lol... Just need a block and tackle mounted to the ceiling to get them in place hehehe

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post #556 of 576 Old 09-10-2016, 08:13 AM - Thread Starter
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Originally Posted by bgtighe23 View Post
An upgrade from those HT18s would add some serious gain in not only dB, but also tactile response. I was pretty surprised myself at the difference between my sealed UM-18s and the sealed HT18s. Not to mention it's going to take 10 minutes to swap out drivers and the results are there. The drivers don't have to be UM-18s, but that's just the two different 18s I have.


So when you swapped out your ht-18's and installed the um-18's it was a big enough difference to your ears right away. Hmmm you have me thinking part of me is lazy to not build more boxes.
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post #557 of 576 Old 09-10-2016, 08:37 AM
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So when you swapped out your ht-18's and installed the um-18's it was a big enough difference to your ears right away. Hmmm you have me thinking part of me is lazy to not build more boxes.
Swapped? No, I have 4 of each

Not just my ears, the tactile feel was the biggest difference on my suspended floor (2nd story room). The pressure was definitely notable, but the tactile feel is what caught my attention the quickest, and most notable gain.

I think if you went with something huge like the HST-18s up front and added those HT18s nearfield, it would be night and day. Even the DS4s, UM-18s, or something similar would be a worth while upgrade. The HT18s are amazing for the price, but don't do well with serious low LFE, ULF output because of their power handling (my experience with only a couple - but if you have 12 of them, you're just not going max out those drivers) But they seriously pound nearfield for a bang for buck ratio.

I'm not dogging on the HT18s, it's just weird to explain. On a budget, they handle ULF, but something like the UM-18s just do such a better job at it.

PS: also understand I have a much smaller room than you, so even little driver upgrades result in a big upgrade.
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------------------------------------------------
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Front Stage : L/R - Statements by Jim Holtz
Surround Speakers : Klipsch RF-82II x 4 / RP-280F x 2
Subwooferage : 6 UM18/4 HT18 Subwoofer Log

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post #558 of 576 Old 10-19-2016, 06:24 PM
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Anyone used threaded inserts and machine screws to mount their 1260/1262's? I am wondering if 8-32 or M4 is a sufficient size or if I should go to an M5. Thank you.
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post #559 of 576 Old 10-19-2016, 06:34 PM - Thread Starter
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Infinity 1260/1262 information QA and build link thread

@Broke EF used something like your talking about in his thread for these. Hopefully he's see's this and jumps in. I'll look for his thread and see what I can find.

It was the broke EF and eng-399 cyclops build.
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post #560 of 576 Old 10-19-2016, 07:24 PM
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@Broke EF used something like your talking about in his thread for these. Hopefully he's see's this and jumps in. I'll look for his thread and see what I can find.

It was the broke EF and eng-399 cyclops build.
You talking about slab nuts from dgage? I've got 30 of them incoming for my builds, and will have installed 10 of them on Saturday in my UM18 build...

This is the post and thread your potentially looking for...



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post #561 of 576 Old 10-19-2016, 08:33 PM
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IMO, it's overkill. Lining then up right, glueing them in right, being careful not to strip the screws are all painful. Glue wooden blocks to your baffle and use wood screws.

I regret doing them on my 18's. Had one spin even.

I have removed and reinstalled my 1260s in the boxes @eng-399 built for my Sausage subs (where he just glued some plywood behind the MDF at the mounting points) a dozen times when doing the stuffing with my dats kit and have had no problems.
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post #562 of 576 Old 10-20-2016, 05:08 AM
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Quote:
Originally Posted by eng-399 View Post
@Broke EF used something like your talking about in his thread for these. Hopefully he's see's this and jumps in. I'll look for his thread and see what I can find.

It was the broke EF and eng-399 cyclops build.
I sure did! I am not positive who made them first, but someone on AVS machined some out of billet. I copied them, but punched them out instead. I also made them "wrong" in a way since I tapped one of the ends rather than the middle. I am fairly certain that was how they were originally built. Anyway I made up a bunch of them in both 10-24 and 1/4-20. I used the 10-24 for the infinity subs, and had to just clean up the holes in the basket. To install them I put the sub in the hole and aligned it how I wanted (BTW the dust caps are not straight on any of them). Then I marked all of the holes, took the sub out and drilled them all a little oversized. Then I put the sub back in and attached the plates, THEN I screwed the plates into the MDF. Worked well, and wasn't too hard to do, just a bit more time consuming.




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post #563 of 576 Old 10-20-2016, 11:34 AM
 
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Anyone used threaded inserts and machine screws to mount their 1260/1262's? I am wondering if 8-32 or M4 is a sufficient size or if I should go to an M5. Thank you.
I will be, since I have a good supply of them on hand, use 10-24s. Just started, plan to put those in later today....glued up the front baffle last nite.
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Inserts installed
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post #565 of 576 Old 12-14-2016, 04:36 PM
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So I bought 2 Ultimax 12's on a whim. Should I just swap them in for the infinity's? Would I see a substantial difference?
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post #566 of 576 Old 12-14-2016, 04:46 PM
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So I bought 2 Ultimax 12's on a whim. Should I just swap them in for the infinity's? Would I see a substantial difference?
What size box do you have? Those need around 2cuft.
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post #567 of 576 Old 12-14-2016, 04:50 PM - Thread Starter
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If I could choose between one of those drivers I would say the Dayton sub is better. The 12" ultimax drive has 19mm of excursion and is 86.7 db level of sensitivity with a 2.5 inch voice coil. The 1260 has a 2 inch voice coil and is 91 db sensitivity and 13mm of xmax if I'm reading the specs right. The Dayton driver looks much better. What size box do you have?
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post #568 of 576 Old 12-15-2016, 06:09 AM
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I don't think I ever updated in here after I got all 4 of my subs built and set up. I looked back really quick and didn't see anything, so here it goes. For those of you who don't know here is the quick rundown of my setup. Also links to my box build, and room build are in my signature.

Four Infinity 1262's in the i-CLOps boxes. Two are in the front under the screen, and two are on the back wall.
Single iNuke 3000DSP for power and processing
Room is approximately 22' long, 11' wide, and 8' tall. It is open to the rest of my house in the back right corner. There is also an attached office, and bathroom/laundry room but those at least have doors I shut.
Measurement is done with a Umik-1 at the main listening position



I can push them a bit further than this, but I wasn't going for max SPL on this sweep. I also don't really run them this hot since my mains don't really keep up when I am close to reference. These subs are insanely impressive, and I am very happy with them. I am about $600 all in for all of the drivers, material, amp, etc. I don't know how I could get performance even close to this for similar money.


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post #569 of 576 Old 12-15-2016, 10:00 AM
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Quote:
Originally Posted by Broke EF View Post
I don't think I ever updated in here after I got all 4 of my subs built and set up. I looked back really quick and didn't see anything, so here it goes. For those of you who don't know here is the quick rundown of my setup. Also links to my box build, and room build are in my signature.

Four Infinity 1262's in the i-CLOps boxes. Two are in the front under the screen, and two are on the back wall.
Single iNuke 3000DSP for power and processing
Room is approximately 22' long, 11' wide, and 8' tall. It is open to the rest of my house in the back right corner. There is also an attached office, and bathroom/laundry room but those at least have doors I shut.
Measurement is done with a Umik-1 at the main listening position

I can push them a bit further than this, but I wasn't going for max SPL on this sweep. I also don't really run them this hot since my mains don't really keep up when I am close to reference. These subs are insanely impressive, and I am very happy with them. I am about $600 all in for all of the drivers, material, amp, etc. I don't know how I could get performance even close to this for similar money.
Sean

Phenomenal results! I have an almost identical setup but in a smaller room. My response isn't quite so flat, but otherwise very similar. Truly amazing the performance for so little cash.
Thanks for posting.
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post #570 of 576 Old 12-15-2016, 02:05 PM
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Like a lot of folks I missed out on the Infinity's, dawdling too long and poof they were gone. The JBL CS1214 seems to be getting some love, but I found a couple of others that I am thinking might also work. I have been playing around with modeling them but I am not very confident of my skills yet.
The Jensen Jensen DUBw12 is on sale at Crutchfield for $50 right now.
Jensen Dub 12
Size 12 -inch
Impedance 4 ohms
Cone Material IMPP
Surround Material NBR
Dual Voice Coil No
Sensitivity 91 dB at 2.83 volts
Frequency Response 22 - 250 Hz
RMS Power Range (Watts) 50-350
Peak Power Handling (Watts) 1400
Top Mount Depth (inches) 5 7/16
Bottom Mount Depth (inches) 5 3/4
Cutout Diameter or Length (inches) 11
Vas (liters) 91.5
Fs (Hz) 26.7
Qts 0.55
Xmax (millimeters) 10


The other interesting one I found was this Lightning. The Xmax seems crazy at 21.2mm, but the sensitivity is pretty bad. It's $80. This is DVC version.

Lightning Audio L2-D412
Size 12 -inch
Impedance 4 ohms
Cone Material Polypropylene
Surround Material Polyfoam
Ideal Sealed Box Volume (cubic feet) 0.86
Ideal Ported Box Volume (cubic feet) 1.85
Port diameter (inches) 4
Port length (inches) 14.5
Free-Air No
Dual Voice Coil Yes
Sensitivity 84 dB at 1 watt
Frequency Response 18 - 250 Hz
RMS Power Range (Watts) ---
Peak Power Handling (Watts) 500
Top Mount Depth (inches) 5 13/16
Bottom Mount Depth (inches) N/A
Cutout Diameter or Length (inches) 11 1/16
Vas (liters) 88.6
Fs (Hz) 23.5
Qts 0.63
Xmax (millimeters) 21.2
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