TLAH Pro 4x8 plywood?

[harquahalas]

Thanks for the tips Grant. I am considering the O-top for cost and a quicker build. If they are sitting on a 20" tall stage with the audience seated at ground level, would they need to be either on stands or in stacked pairs?

[Bruce Weldy]

Thanks for the tips Grant. I am considering the O-top for cost and a quicker build. If they are sitting on a 20" tall stage with the audience seated at ground level, would they need to be either on stands or in stacked pairs?

Definitely need to be up in the air. And build two per side if you are doing OTops - they sound better in pairs.

A pair of OTops can sit on a stand with no problem. If this is permanent, then you could build some type of platform for them to sit on. I'd keep the bottom of the bottom box 6 feet....certainly no lower than 5. If you go less than 6, you probably ought to consider power-shading them - meaning that you run the bottom boxes off one amp the the tops off another so you can make the top ones louder and the bottoms softer.

[harquahalas]

OK. Could I stack them on one or two T-24s? Or would it be better to have 4 of those evenly spaced under the stage. Sorry I'm asking so many questions. I hope I don't burn out my welcome here. Very much appreciate all the great tips and advice.

[Bruce Weldy]

OK. Could I stack them on one or two T-24s? Or would it be better to have 4 of those evenly spaced under the stage. Sorry I'm asking so many questions. I hope I don't burn out my welcome here. Very much appreciate all the great tips and advice.

You are asking good questions and no one here minds answering.

Do not stack them on the T24s - not high enough and you shouldn't have the subs split like that. Center the subs in front of the stage or wall-load them off to the side of the stage (not on it).

[harquahalas]

OK, so don't evenly space the subs under the stage? Butted up under the center of the stage is best?

[Bruce Weldy]

OK, so don't evenly space the subs under the stage? Butted up under the center of the stage is best?

You can put 'em under the stage if you want, but not evenly spaced - put up next to each other.

Caveat:
You can space 'em as long if the mouths are within a quarter wavelength (I believe that's the proper math) of your sub's lowpass frequency. So, at 100hz the wavelength is 11.3 ft. Divide that by 4 and mouths need to be within about 34 inches of each other.

That means you could put two of them bottom on theirs sides next to each other, then space the other two on either side with the mouth 34 inches away from the mouth of the center cluster. I'm assuming you are planning to build 4 T24s? Personally, I'd build two slim T39s with the 3012LF driver. More bang for the buck.

[harquahalas]

Yes, building 4. I will consider the T39s as well. Bill emailed the 3 plans I was originally planning on. I have the CD with all of the plans, but I found out my optical drive on my work computer doesn't work, so I need to pull up any other plans I'm considering and email them to myself or print out so I can build them at work.

[harquahalas]

OK. I'm getting ready to order driver kits. Pretty sure I will stick with the original TLAH Pro, Wedgehorn 10 with the beta-10 and probably do 2 T39 with LAB-12s as they won't be moved and I don't need light weight, instead of 4 t24 just to keep the cost and work time down a little. I think the TLAH will look and sound nice and I'm still well within my budget. Plus I can do the V-coupling and put the T39 centered on their side under the stage.

As for crossovers, The wedgehorn have the crossover included, or I can pay extra to have them prewired, but it doesn't look like the TLAH come with the high pass crossover parts and I'm not getting anything when I search for the components on speakerhardware.com

Is the 3012LF a better performing speaker than the LAB-12, or just lighter? I assume upgrading driver on the wedgehorn isn't going to really benefit me?

Thanks in advance guys!

[Grant Bunter]

OK. I'm getting ready to order driver kits. Pretty sure I will stick with the original TLAH Pro, Wedgehorn 10 with the beta-10 and probably do 2 T39 with LAB-12s as they won't be moved and I don't need light weight, instead of 4 t24 just to keep the cost and work time down a little. I think the TLAH will look and sound nice and I'm still well within my budget. Plus I can do the V-coupling and put the T39 centered on their side under the stage.

Nice plan!

As for crossovers, The wedgehorn have the crossover included, or I can pay extra to have them prewired, but it doesn't look like the TLAH come with the high pass crossover parts and I'm not getting anything when I search for the components on speakerhardware.com

Send them an e-mail

Is the 3012LF a better performing speaker than the LAB-12, or just lighter? I assume upgrading driver on the wedgehorn isn't going to really benefit me?

The lab 12 has a very slight advantage over the 3012lf in output, like maybe 1dB. Since you're going for an install, the weight issue isn't relevant.
I think the beta 10 in the WH10 should be fine, but now is the time to upgrade rather than later. You can always turn down, there's only so much you can turn up.

Thanks in advance guys!

[Bruce Weldy]

Is the 3012LF a better performing speaker than the LAB-12, or just lighter? I assume upgrading driver on the wedgehorn isn't going to really benefit me?

Thanks in advance guys!

Performance is the same. The amount of voltage they can take is the same. It's lighter and costs $5 less. Go with the lighter one.

[harquahalas]

Bruce, the 3012LF is $25 more than the LAB-12.

[Grant Bunter]

Bruce, the 3012LF is $25 more than the LAB-12.

In the greater scheme of things, $25 in-between 2 drivers is much of a muchness, but's that's only for now.
Historically, there have been large gaps in pricing between the 2 when China bump the price of Neo, and that's why the lab 12 was introduced as a suitable driver (with the reducers due to lower Fs)

BTW Bruce has forgotten that the lab 12 has a nominal impedance of 6 ohms. It's voltage limit is the same as the 3012lf, but that lower impedance (and greater Xmax) is where the extra 1-2dB in output arises from...

[Bruce Weldy]

Bruce, the 3012LF is $25 more than the LAB-12.

Interesting.....I'm an Eminence dealer and that's not what my price list shows for MAP pricing.

Price list shows the Lab12 at $199.99 MAP and the 3012LF at $194.99.....so does the Eminence web store. Are you looking at the Lab 12 or the LA12850? That one is 25 bucks cheaper, but it's not the right driver.

[harquahalas]

Hmm. I was just looking at the package deals and the speaker upgrade costs. Is it cheaper if I piece everything together? Are there other websites I should be checking as well?

[Bruce Weldy]

Hmm. I was just looking at the package deals and the speaker upgrade costs. Is it cheaper if I piece everything together? Are there other websites I should be checking as well?

If you are looking at Speaker Hardware, then you are in the right place. Prices have changed some and Leland may not have gotten his packages updated. Give him a holler and ask him if the pricing is correct on the Lab vs 3012. But, his kit prices are a good deal and saves you the giant PITA of finding everything on your own.....crossover parts are a pain.