Official Elemental Designs Subwoofer Thread - Page 525 - AVS Forum | Home Theater Discussions And Reviews

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post #15721 of 15749 Old 08-04-2016, 07:31 PM
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Quote:
Originally Posted by LFTphile View Post
Would maybe adding a third driver totalling 900watts be better or is the risk still present no matter what I do.
the best you can do is three 1262w's wired to 2 ohms, and then series the three together for a total load of 6 ohms... at that load, the amp will be putting out less than 700 watts RMS.

you are better off with four of the 1260w single voice coils, and series/parallel them for a total load of 4 ohms.

do you understand about the impedance, and the effect of multiple voice coils wired series and parallel ? do you have a multimeter ? know that the amp cannot go below 4 ohms or it will blow up. and any higher than 4 ohms and you will be losing power.

the best idea yet, is to just get the 18 inch.

but... best to test the amp before going anywhere further. if you have to fix the amp, buy new drivers, and make speaker boxes, you will have enough money invested that you could have bought a new sub that would likely outperform what you are thinking about doing.
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post #15722 of 15749 Old 08-10-2016, 06:26 PM
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Sorry for the delayed response

What kind of output can I expect if I were to go with 4 1260 drivers. That's a pretty extreme decision if I chose that option but I am very curious and wonder if it's worthwhile.

And I am aware about the impedance not exceeding 4ohm. I educated myself years ago about what ohms are and what they do and the dangers for the anps and the fact that you can over-stress the amp or under-power your subs/drivers. Very important. But I appreciate you informing me. Where I'm confused is using multiple drivers and series/parallel configurations.

I just want to include as many options as possible then narrow down the best for me before I make a hasty decision.

Thanks for taking the time to help me and educate me
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post #15723 of 15749 Old 08-21-2016, 07:34 AM
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If you find a used A2-300 in good condition, what would be the appropriate price to pay for it (considering the sub is functional).
I was just planning to pair one with my existing A2-300.


Edit: I just noticed from last few posts that Infinity 1260W is discontinued. That is a disappointment.

Last edited by aaranddeeman; 08-21-2016 at 07:59 AM.
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post #15724 of 15749 Old 08-22-2016, 11:27 AM
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Noting that the 1260w is very difficult to find now that it is discontinued, is the Kappa 120.9 a suitable substitute? It seems like an equally nice sub, and pricing isn't too bad (don't pay MSRP).

http://www.infinityspeakers.com/subw...PA+120.9W.html
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post #15725 of 15749 Old 08-23-2016, 11:10 PM
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Quote:
Originally Posted by Paradoxex View Post
Noting that the 1260w is very difficult to find now that it is discontinued, is the Kappa 120.9 a suitable substitute? It seems like an equally nice sub, and pricing isn't too bad (don't pay MSRP).

http://www.infinityspeakers.com/subw...PA+120.9W.html
that may be a good choice. i am having trouble finding TS Parameters for it though.

another option, would be to look at the JBL subs too... since Infinity and JBL are the same company, i bet they share a lot in common.

possibly this ?: https://www.amazon.com/CS1214-1000-w...2&keywords=jbl

or this: https://www.amazon.com/JBL-GT5-12-12...5&keywords=jbl
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post #15726 of 15749 Old 08-24-2016, 05:32 PM
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Strange think is the DVC 1262w are available plenty.
Was wondering if we can use that instead with some modification. Like connecting the coils serially and then connecting them to the amp.
or can I just use one of the voice coils (would that reduce efficiency)?

Last edited by aaranddeeman; 08-24-2016 at 05:38 PM.
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post #15727 of 15749 Old 08-24-2016, 06:04 PM
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Quote:
Originally Posted by aaranddeeman View Post
Strange think is the DVC 1262w are available plenty.
Was wondering if we can use that instead with some modification. Like connecting the coils serially and then connecting them to the amp.
or can I just use one of the voice coils (would that reduce efficiency)?

sure... you can do it with the 1262w. series the two 4 ohm voice coils, and you will end up with an 8 ohm load.

unfortunately, your LT200 amp will only be able to put out 100 watts RMS at 8 ohms. wont go very loud, and the driver wont be working anywhere near it's potential.

best to get something 4 ohms. either of the JBL's i mentioned will out perform a 1262w at 8 ohms.

and no... you cannot parallel the voice coils of the 1262w. that will give a 2 ohm load, and the amp wont last 10 minutes on 2 ohms.
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post #15728 of 15749 Old 08-24-2016, 06:14 PM
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oh... and no, you dont want to run only one voice coil.

the driver handles 300 watts total. it is designed with smaller gauge magnetic wire than the 1260w and each coil will only handle half the current. so if you have a 150 watt amp, then you are good.

if you put 200 into it and like it loud, do not run it for long periods of time. turn it off and let the coil cool for a while every so often, or you will melt the coil.

better idea... just get a single coil 4 ohm driver.
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post #15729 of 15749 Old 08-24-2016, 06:38 PM
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Quote:
Originally Posted by daveds50 View Post
oh... and no, you dont want to run only one voice coil.

the driver handles 300 watts total. it is designed with smaller gauge magnetic wire than the 1260w and each coil will only handle half the current. so if you have a 150 watt amp, then you are good.

if you put 200 into it and like it loud, do not run it for long periods of time. turn it off and let the coil cool for a while every so often, or you will melt the coil.

better idea... just get a single coil 4 ohm driver.
Yes of course. Thanks.

BTW there is 1260w available at one place, but is 50% more than what we have paid before.
And looking at the market situation they are not gonna drop that price mostly.
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post #15730 of 15749 Old 08-24-2016, 06:55 PM
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Quote:
Originally Posted by daveds50 View Post
that may be a good choice. i am having trouble finding TS Parameters for it though.

another option, would be to look at the JBL subs too... since Infinity and JBL are the same company, i bet they share a lot in common.

possibly this ?: https://www.amazon.com/CS1214-1000-w...2&keywords=jbl

or this: https://www.amazon.com/JBL-GT5-12-12...5&keywords=jbl
Found t/s parameters for GT5-12. See attached.
Attached Files
File Type: pdf GT5-12.pdf (68.9 KB, 29 views)
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post #15731 of 15749 Old 08-24-2016, 06:59 PM
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Quote:
Originally Posted by daveds50 View Post
that may be a good choice. i am having trouble finding TS Parameters for it though.

another option, would be to look at the JBL subs too... since Infinity and JBL are the same company, i bet they share a lot in common.

possibly this ?: https://www.amazon.com/CS1214-1000-w...2&keywords=jbl

or this: https://www.amazon.com/JBL-GT5-12-12...5&keywords=jbl
Here is for the CS1214 .
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File Type: pdf CS1214 .pdf (103.3 KB, 29 views)
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post #15732 of 15749 Old 08-24-2016, 08:07 PM
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I'm not sure what all that info means - how do those compare to the 1260w?

-Aaron
English Way Cinema and Bar - working on v2.0 in 2016, check it out.
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post #15733 of 15749 Old 08-24-2016, 08:11 PM
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Originally Posted by PTAaron View Post
I'm not sure what all that info means - how do those compare to the 1260w?
I don't know either. But here is 1260W.
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File Type: pdf Infinity_1260W.pdf (130.9 KB, 34 views)
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post #15734 of 15749 Old 08-25-2016, 08:08 PM
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post #15735 of 15749 Old 08-25-2016, 08:10 PM
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Quote:
Originally Posted by Paradoxex View Post
Noting that the 1260w is very difficult to find now that it is discontinued, is the Kappa 120.9 a suitable substitute? It seems like an equally nice sub, and pricing isn't too bad (don't pay MSRP).

http://www.infinityspeakers.com/subw...PA+120.9W.html
T/S parameters for it are here.
Attached Files
File Type: pdf KAPPA120-9w_PI_EN.pdf (530.5 KB, 33 views)
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post #15736 of 15749 Old 08-26-2016, 07:11 PM
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post #15737 of 15749 Old 09-04-2016, 10:25 AM
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Quote:
Originally Posted by John Mauro View Post
Is there a recommended upgraded 15" driver for the A5-350 that fits without modification?
I bought a 15" Kicker driver from Amazon (C154 Comp) for $83 that fit perfectly into the cutout of the A5-350 enclosure. I did have to drill new holes because they didn't line up exactly. I've been using it for a couple weeks now and so far, so good. Sound is a lot better than the original driver with a completely torn spider . . .

Good luck!


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post #15738 of 15749 Old 09-13-2016, 04:46 PM
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FYI. I am selling my A7S-450 (comes with equalizer) on Craigslist for $350 firm. Here is a link to the ad.

http://louisville.craigslist.org/ele/5780442259.html

I live in 47136 - not too far from Louisville, KY. I will drive up to 100 miles to meet someone. I will not ship!!




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post #15739 of 15749 Old 09-20-2016, 09:00 PM
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Anybody looking for 1260W. It's available here. Albeit 50% more than that it was available few months ago.
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post #15740 of 15749 Old 10-30-2016, 07:06 PM
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Pleasantly surprised to see that there are still folks putting work to make these subs functional.


Now I can add myself to the list of people who need to remedy an eD subwoofer.


I have an A7-350 with the LT/1300 amp which isn't doing it's thing anymore.. More specifically, power output appears to have dropped to pretty much nothing.


The amp powers on. The auto-sense function works. However the overall output is low enough to the point you can barely tell it's on. I've verified this by feeding it with an alternate signal source.


@daveds50;, I'm hoping you (or perhaps anyone else?) can point me in the right direction to diagnose what's wrong with this thing. I have no qualms about pulling it apart to check things and take measurements, I just need to know what I'm looking for.


i.e. any specific areas of the amp which offer visual indicators of damage? what ohm reading should the driver in this sub have to be considered "good"?


Seeing as how the sub is getting up there in age at this point, is it advisable to go ahead and replace the driver even if it's still good? If so is there a recommended replacement?


I'd send you a PM but I'm still under the 15 post limit even though I've been here since 07!


Thanks in advance!

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post #15741 of 15749 Old 10-31-2016, 11:48 AM
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FYI. I am selling my A7S-450 (comes with equalizer) on Craigslist for $350 firm. Here is a link to the ad.

http://louisville.craigslist.org/ele/5780442259.html

I live in 47136 - not too far from Louisville, KY. I will drive up to 100 miles to meet someone. I will not ship!!



Make sure you don't get in trouble for this. I got popped with two infractions for doing this, in this same chat. One after the other since I wasn't sure why my post was deleted and I made another.

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post #15742 of 15749 Old 10-31-2016, 12:14 PM
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Make sure you don't get in trouble for this. I got popped with two infractions for doing this, in this same chat. One after the other since I wasn't sure why my post was deleted and I made another.

Thanks for the heads up. I wasn't aware. It has been sold.
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post #15743 of 15749 Old 11-01-2016, 12:26 AM
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@daveds50;, I'm hoping you (or perhaps anyone else?) can point me in the right direction to diagnose what's wrong with this thing. I have no qualms about pulling it apart to check things and take measurements, I just need to know what I'm looking for.


i.e. any specific areas of the amp which offer visual indicators of damage? what ohm reading should the driver in this sub have to be considered "good"?


Seeing as how the sub is getting up there in age at this point, is it advisable to go ahead and replace the driver even if it's still good? If so is there a recommended replacement?
if you have a Facebook account, message me at Daveds50 Electronics. if not, send an email to daveds50 at cox dot net.

i have never seen any LT1300 that showed signs of physical damage when they go bad. nothing to see...

the driver should see around 5 ohms, and should move freely when pressed lightly with your fingers. the thing about that, is out of all the LT1300's i have worked on, only one driver was bad. and it is also rare that LT1300's have problems. i guess that all depends on how much it has been used. no sub lasts forever, but it seems eD got the A7 subs right.
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post #15744 of 15749 Old 11-01-2016, 06:47 AM
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Thanks for the heads up. I wasn't aware. It has been sold.
No problem :thumbup:

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post #15745 of 15749 Old 11-01-2016, 10:37 AM
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if you have a Facebook account, message me at Daveds50 Electronics. if not, send an email to daveds50 at cox dot net.

i have never seen any LT1300 that showed signs of physical damage when they go bad. nothing to see...

the driver should see around 5 ohms, and should move freely when pressed lightly with your fingers. the thing about that, is out of all the LT1300's i have worked on, only one driver was bad. and it is also rare that LT1300's have problems. i guess that all depends on how much it has been used. no sub lasts forever, but it seems eD got the A7 subs right.


Thanks! I already have pulled the amp and the driver from the enclosure so I'll check the driver readings tonight and follow up with an email. That's approximately 5 ohms across both voice coils wired in series I assume?
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post #15746 of 15749 Old 12-05-2016, 01:05 PM
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Anyone need an Infinity 1060w driver and/or A2-250 amp/enclosure? Actually works fine, but I got a new subwoofer. Put it on craigslist, no luck. Probably donating to charity soon, but asking in case anyone needs this for parts or anything, or a cheap subwoofer. Free or whatever you think is fair. Denver CO area.. Not shipping, except maybe the 1060w by itself.
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post #15747 of 15749 Old 12-07-2016, 06:14 PM
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Anyone need an Infinity 1060w driver and/or A2-250 amp/enclosure? Actually works fine, but I got a new subwoofer. Put it on craigslist, no luck. Probably donating to charity soon, but asking in case anyone needs this for parts or anything, or a cheap subwoofer. Free or whatever you think is fair. Denver CO area.. Not shipping, except maybe the 1060w by itself.
Hey - I'm in the Denver area and will gladly take this off your hands! I've been looking for a second sub for my setup and this would fit in perfectly. PM me when you get a chance.
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post #15748 of 15749 Old 12-08-2016, 10:56 PM
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I purchased an ED A3-300 from a guy in KY while on a job there, and he was really great about shipping it.

I want to do it AGAIN.. anyone have an ED sub A3-300 or better that they want to sell?
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post #15749 of 15749 Old Today, 10:43 AM
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I have an A3 250 with a 4 ohm 1250 max 750 rms driver that is not getting the power it wants. Does anyone know of a plate amp that will fit and work better?

Anthem MRX 720, ELAC F&C5, Klipsch R-2650 Sony XBR 75X910C, Samsung UBD-K8500, Oppo BDP-93, SVS SB2000 & Elemental Designs A3 250
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