ash plywood?

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3000dclass

Copper - Posts: 50

Joined: June 05, 2007

Posted: June 24, 2007 at 9:10 AM / IP Logged

I was wondering if anyone has used ash plywood for their subwoofer box. I am thinking of ash because it is an extremely hard wood, which should help keep the box from bending from hard hitting bass. And ash plywood because it wont be affected by temp, humidity, swelling, etc.

What do you guys think? I know most stuff is made out of mdf, but since im making it myself, ash plywood is cheap enough to buy and i think would work good. But ive never made a box before so id like some insight, thanks.

Also, If I build a box to manufacturers specs for a sealed box, and then fill it with polyfill, will that make it sound better or worse?

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Steven Kephart

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Joined: November 06, 2003

Location: Oregon, United States

Posted: June 24, 2007 at 12:04 PM / IP Logged

I'm sure the ash would work just fine.

Make sure you know what the "manufacturers specs" for the sealed enclosure will actually do. Many times manufacturers will recommend enclosures based on how they market the sub. For instance, if they are marketing a cheap sub as requiring a small enclosure, then their recommended enclosure may have a very peaky response. It's a good idea to use a boxbuilding program so you can model up the subs response. Then you can design the response to your tastes.

Polyfill works by creating friction, slowing down the air speed in the enclosure. This raises the Qtc. a bit, making it sound like a larger enclosure. If you use it, try to keep most of it in the middle of the enclosure where the airspeed is greatest.

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Installer_mss

Copper - Posts: 221

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Posted: June 25, 2007 at 12:56 PM / IP Logged

ash plywood should work very well. mdf is used mainly because its cheaper and most of the time the box construction material is covered by carpet, vinyl, etc. so there's usually no use in dishing out the extra cash for more expensive building materials. i have used ash and oak plywood to build home enclosures and they work great. i also back steven's comments...build the box to the car's accoustics, not always by specs on the sheet. some companies have had some rediculous box tuning frequencies.

"If a man made it, another can modify it...it just takes some thinking."

"If you ask questions, you're a fool for 5 minutes; if you don't, you're a fool for a lifetime."

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ash plywood?

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