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a few questions!

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GrinGrin View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GrinGrin Quote  Post ReplyReply Direct Link To This Post Topic: a few questions!
    Posted: 29 March 2020 at 5:38pm
so im a fairly new member,
I am going to attempt to start by building a scoop sub, 18" and id like to ask MDF or birch Ply,
and the pros and cons,
also would it be a good idea to create the structure of the enclosure out of ply, coat that with veneer and then use MDF for the interior braces ? also what would be the best way to attach the veneer and would i want to do it inside and out?

thank you !
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Stantheman5516 View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Stantheman5516 Quote  Post ReplyReply Direct Link To This Post Posted: 29 March 2020 at 6:01pm
Ive found that 18mm ply works fab for me, as long as cabinet is plum and fitted tightly.
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Dub Specialist Sound Quote  Post ReplyReply Direct Link To This Post Posted: 29 March 2020 at 6:21pm
tbh imagine the venner could be a pain in the arse man, imho id just vanish/stain them, so much easier ive built many sounds/boxs with that combo 
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 29 March 2020 at 6:47pm
MDF - generally cheaper, denser & can sound good - but no good if it´s going to be moved around a lot or used outside. Also needs to be well sealed and painted to avoid damp destroying it.

Ply - standard material for cabinets. Very robust & will sound fine as long as well braced.

Veneer - maybe to protect the outside instead of 2-part paint, etc, but I wouldn´t use it inside the cabinet.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote GrinGrin Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2020 at 4:18pm
Thank you so much, very useful, Ill scrap the veneer (I think even if I put it on the outside it will get damaged and look messy, so ply..
this bracing you speak of, do you mean interior bracing? or some sort of metal around the edges, would this cause unwanted rattling?

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Post Options Post Options   Thanks (1) Thanks(1)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2020 at 4:28pm
Bracing - yes, internal battening to stengthen the cabinet and stop  it vibrating.


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GrinGrin View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GrinGrin Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2020 at 4:28pm
you know of any particular vanish/ stain specific for speakers or is it anything goes?

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Stantheman5516 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Stantheman5516 Quote  Post ReplyReply Direct Link To This Post Posted: 02 April 2020 at 5:12pm
Whatever you think looks best, the stain won’t affect the sound unless it gets on the actual drivers 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bob4 Quote  Post ReplyReply Direct Link To This Post Posted: 03 April 2020 at 5:35am
Scoops, ply! 

Box becomes heavy, gets hauled, dropped and banged -> disastruous for mdf.

Metal fittings/edges have been time and again rejected based on experience. Every time this question comes up, an oldtimer pops in to tell how these metal parts have caused all kinds of nasty wounds after they slowly come loose from the abuse.


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