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Author Topic: B&C Subs - merged  (Read 10624 times)

Shivraj Persaud

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B&C Subs - merged
« on: October 30, 2008, 12:32:22 am »

I am building 2 SUB215 using B&C's plans on their website. I will post pics of this project as I work on it.

The website says the plywood or material will be 50mm or about 1". Do I have to use MDF board for this ? Or is it possible to use 0.75 inch plywood just making sure the ports are 2", and the internal volume remains at 300 liters.
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Jim Ferrari

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Re: Planning on building 2- B&C SUB215 subs
« Reply #1 on: October 30, 2008, 06:09:50 am »

The plans I saw refer to 25mm plywood, properly braced. I would never use MDF for any box intended for mobile use. It's not rugged enough and doesn't like to get wet very often. Good luck.
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Steven Geist

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Re: Planning on building 2- B&C SUB215 subs
« Reply #2 on: October 30, 2008, 09:55:07 am »

You should be able to order 1" (25mm) plywood from a lumber yard.  It will probably have to be special ordered.  Or you can do two .75" sheets.  Personally, I think with proper bracing .75" will work.  Make sure you get 13 ply birch.  So long as all the internal dimensions are the same you will be ok.  Plywood also has the added bonus of being a little lighter than MDF.
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Shivraj Persaud

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Re: Planning on building 2- B&C SUB215 subs
« Reply #3 on: October 30, 2008, 02:29:11 pm »

Yes 25 mm is approx 1" sorry for the mistake 50 mm is the vents. 0.75" plywood is very rigid and easy to work with. I guess thats the only way to go. 1" plywood will be too expensive.
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Ivan Beaver

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Re: Planning on building 2- B&C SUB215 subs
« Reply #4 on: October 30, 2008, 08:03:33 pm »

A 2" vent is going to whistle on you.  You need to make them quite a bit larger AND deeper in order to get decent bass performance.
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For every complicated question-there is a simple- easy to understand WRONG answer.

Can I have some more talent in the monitors--PLEASE?

Ivan Beaver
dB Audio & Video Inc.
Danley Sound Labs

Shivraj Persaud

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Re: Planning on building 2- B&C SUB215 subs
« Reply #5 on: October 30, 2008, 08:14:04 pm »

did you see the plans ? its 2" but times appx. 30 inches on both sides.

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Ivan Beaver

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Re: Planning on building 2- B&C SUB215 subs
« Reply #6 on: October 30, 2008, 08:29:17 pm »

No, I did not look at the plans first, my bad. Embarassed

I was just going by your description and it sounded (my bad) like you were talking about a 2" port that was .75" deep,

Sorry.
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For every complicated question-there is a simple- easy to understand WRONG answer.

Can I have some more talent in the monitors--PLEASE?

Ivan Beaver
dB Audio & Video Inc.
Danley Sound Labs

Shivraj Persaud

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Re: Planning on building 2- B&C SUB215 subs
« Reply #7 on: November 05, 2008, 08:58:22 am »

isnt 3/4" plywoood really 18mm ? I worked with it before and it was not exactly 3/4".

Thanks.
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Ivan Beaver

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Re: Planning on building 2- B&C SUB215 subs
« Reply #8 on: November 06, 2008, 07:27:08 pm »

Shivraj Persaud wrote on Wed, 05 November 2008 08:58

isnt 3/4" plywoood really 18mm ? I worked with it before and it was not exactly 3/4".

Thanks.

And most "3/4" isn't 3/4 either, but slightly smaller. 18mm is actually .708", IF it is actually 18mm.  It does vary a bit.
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For every complicated question-there is a simple- easy to understand WRONG answer.

Can I have some more talent in the monitors--PLEASE?

Ivan Beaver
dB Audio & Video Inc.
Danley Sound Labs

John Shelbourn

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B&C Subwoofer Cabinets
« Reply #9 on: November 11, 2008, 03:12:48 pm »

I am really considering building (4) B&C 215 or sub 218 subwoofer cabinets.  Does anyone have any experience with these? Pictures, plans, etc.  Also, what would you recommend for amplifier(s)?  The sub 215's seem to have better specs; would it be smarter to build the sub 215 instead of the sub 218?

I would love to build lab subs but we are a weekend warrior band, I currently own 4 ls800p's and a pair of Mackie srm1530's.  I love the system but when I start crunching the numbers they seem to get pricey when trying to expand your pa, not to mention the power cables needed.
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