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Author Topic: My first pair of Labs  (Read 9753 times)

Jeff Bailie

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Re: My first pair of Labs
« Reply #20 on: January 11, 2011, 03:38:42 am »

Sweet... I had a foreign exchange student from Norway live with me when I was younger. He was from Oslo. He was also super intelligent. And Damn he was good at Football!

All the more reason to start collecting the tools needed for the job.

I'm just a fairly educated American and I pulled it off! haha..

As a beginner, I would would try and slide tackle the Flair Pieces First. If you can get those cut correct the rest isn't so bad.

Sorry for my lame soccer pun.  
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Ryan Stubbs

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Re: My first pair of Labs
« Reply #21 on: January 11, 2011, 10:38:12 am »

I'm curious to know why Labs cost as much as they do to build. Is it the Baltic Birch that costs so much? Where does the majority of the expense come from? I know they are an outstanding sub for the price, but to an outsider it seems like they wouldn't cost as much as they do.
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Tim McCulloch

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Re: My first pair of Labs
« Reply #22 on: January 11, 2011, 03:31:26 pm »

Hi Martin-

If you need a hobby, there are certainly worse things than building subwoofers while on exchange.

If you're in or near a major city, there's a good chance you can rent shop time in a woodworker's collective.  Inquire at the places that sell cabinetmaker's supplies or imported hardwoods.  The guys at the big home centers might know, too, but I put my bets on craftsmen suppliers.  You will have access to a fully equipped shop and probable offers of help from other crafters in the facility.

The only downside to this will be that you'll build subs you really like but are unlikely to send back to Norway.

Even if you do a mediocre job of building, you'll gain experience and knowledge.  In the end, that's what you're pursuing.  And some kick-ass low end!

Have fun, good luck.

Tim Mc
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"Will you stand by me against the cold night, or are you afraid of the ice?" Crack The Sky

Tim McCulloch

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Re: My first pair of Labs
« Reply #23 on: January 11, 2011, 03:44:15 pm »

Ryan Stubbs wrote on Tue, 11 January 2011 09:38

I'm curious to know why Labs cost as much as they do to build. Is it the Baltic Birch that costs so much? Where does the majority of the expense come from? I know they are an outstanding sub for the price, but to an outsider it seems like they wouldn't cost as much as they do.


Baltic birch is a lot of the cost.  It doesn't commonly come in convenient 4x8' sheets, typically they're roughly 5'x5'.  There is a lot of waste.  You can order 4'x8' sheets but often about 3" or more around each edge isn't 'finish grade' and it's more expensive per S.F. than the 5' panels.  This also changes frequently, so you'd be advised to contact your hardwood vendor for current prices and availability.

On average, Baltic Birch is about 4x the price of softwood plywood in the USA.

The woofers are around $250/pair.  The aluminum plates that cover the woofer hatches are about $40 each to fabricate, some have paid much more, others have paid a little less.  It's a 2-per sub item.  Other things, like jack plates, corners, handles, casters, grilles, etc run up the costs, too.  This kind of hardware can easily total up to around $200 by itself, not including all the wood screws you'll use in the build.

Print out the plans, find some pictures in the "LABporn" thread and print them out, too, showing the finish and hardware.  Take that to your local high school woodshop teacher and ask him/her to break the project down with you.  You'll understand how it *can* cost $1000/per.  I think the minimum we heard someone building LABsubs for was around $650.

Remember, though, that you're building a sub that WILL compete with commercial products that sell for twice or more your costs.  That's what you need to focus on if you intend to build these.  Otherwise build some generic 2x18" boxes and call it a day.

Have fun, happy sawdust.

Tim Mc
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"Will you stand by me against the cold night, or are you afraid of the ice?" Crack The Sky

Helge A. Bentsen

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Re: My first pair of Labs
« Reply #24 on: January 11, 2011, 05:21:20 pm »

Tim McCulloch wrote on Tue, 11 January 2011 21:31


The only downside to this will be that you'll build subs you really like but are unlikely to send back to Norway.

Have fun, good luck.

Tim Mc


Shipping stuff from the US to Norway is quite cheap, there are some freight companies specialising in this so we can buy cheap stuff from Ebay, mail-order etc. and ship it by them. I bought 4 used SH-50s this way, shipping was around $600 for all four.
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Martin Toft

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Re: My first pair of Labs
« Reply #25 on: January 11, 2011, 10:53:37 pm »

O now i don't know what i am going to do... i live around the phoenix area so i guess renting a shop is an option, and a good idea! but, there are so many people saying that it is a good idea and people saying it's not. i mainly want to build for the experience part, but also to hear how they sound and use them for the mobile DJ applications. my host father has a experience working with wood and he said he understood all the plans and everything. he just needed a good shop that's all. so maybe renting a shop is a good idea? i don't know yet. it would definitely be a fun project and a great experience. i will look further into it.

i don't need to send them back to Norway. Even though that's breaking the rules. But if i find the build successful i can just build more when i get back home. And that is in about 5 months. so i have quite a lot of time.

Tim, should I really do this?
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Duane Silveira

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Re: My first pair of Labs
« Reply #26 on: January 12, 2011, 03:48:46 am »

Martin Toft wrote on Tue, 11 January 2011 19:53

O now i don't know what i am going to do... i live around the phoenix area so i guess renting a shop is an option, and a good idea! but, there are so many people saying that it is a good idea and people saying it's not. i mainly want to build for the experience part, but also to hear how they sound and use them for the mobile DJ applications. my host father has a experience working with wood and he said he understood all the plans and everything. he just needed a good shop that's all. so maybe renting a shop is a good idea? i don't know yet. it would definitely be a fun project and a great experience. i will look further into it.

i don't need to send them back to Norway. Even though that's breaking the rules. But if i find the build successful i can just build more when i get back home. And that is in about 5 months. so i have quite a lot of time.

Tim, should I really do this?

Martin, why be so wishy washy?? The plans are in complete detail, free of charge, with all the support from forum members along with years of "chat" specifically about the lab sub. Ive built 5 so far with excellent results. I just jumped in and went to work. First step is to buy the wood and either rent, borrow buy or steal the tools for the job. Ok dont steal them. The main thing is to TAKE YOUR TIME. Dont rush the job. Measure twice and cut once. By the way you dont need a shop either. I cut all my pieces in the backyard and assembled them in my living room with the comfort of heat and a flat screen tv . Yes my carpet is now destroid Confused But thats beside the point. So....no need to ask someone wether you should do it or not. You make the choice. Procrastination never gets you anywhere. Good luck!!
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Martin Toft

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Re: My first pair of Labs
« Reply #27 on: January 12, 2011, 07:53:17 pm »

ok. good answer duane. i thought of it as i went to bed yesterday. i don't want anything to stop me from this as i really want to!

ok. so for building two. how much wood would i need? how many sheets? approximately? and would i need more than one 1 liter can of epoxy? or how much

and the flare part. that is "kind of" like building a horn right?
And the one thing i don't understand. where and how are you wiring it all? they should be wired in parallel right?  do you pull the wire through the panels around the driver? and in free air inside the horn?

Thanks for answering questions.
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