[HT cOz]

If I had the world at my finger tips, which by the looks of your sub cabinet you do, I would go OB and forget the box!  Just make the badest OB setup that your imagination can come up with!!!

[jtwrace]

If I had the world at my finger tips, which by the looks of your sub cabinet you do, I would go OB and forget the box!  Just make the badest OB setup that your imagination can come up with!!!

   I might have the design / manufacturing skill but don't have the OB design skills.     Now if someone else did......

[dBe]

Give a guy enough rope and......

Dave

[WGH]

I've been thinking of building new cabinets for my custom 3-way I built.  My question is what's the best enclosure material?  I would prefer something that can be CNC'd in my router / large mill.

That's easy, I would choose 1" Richlite http://www.richlite.com/. The material is $25 sq ft., easily machinable with a CNC and very non-resonant.

Wayne

[jtwrace]

That's easy, I would choose 1" Richlite http://www.richlite.com/. The material is $25 sq ft., easily machinable with a CNC and very non-resonant.

Wayne

Wayne

I'll look into that.  I take it that you've used it?

[dBe]

Wayne

I'll look into that.  I take it that you've used it?

I'm not Wayne, but I have some very small samples of the material.  It appears to be an MDF like material, but with a phenolic or similar resin binder.  Like Wayne says it is heavy, dense and quite dead.

Dave

[jtwrace]

I'm not Wayne, but I have some very small samples of the material.  It appears to be an MDF like material, but with a phenolic or similar resin binder.  Like Wayne says it is heavy, dense and quite dead.

Dave

What have you used it for?

[dBe]

What have you used it for?

Jason, I just have a sample ring.  I have not used it.  It is hard and dense.

I'm building my Super V's (very slowly, I might add: business is good) from a combination of Baltic birch ply and Medex.  Medex is a slightly denser, harder and stiffer version of mdf.  I really like the combination of the two materials.  The panels are vacuum pressed together with West System 105/205 epoxy for the adhesive.

[WGH]

I used the Richlite as a damping layer in the VR2 speakers. Their website has dealer locations, usually you can get scraps to play with. I can send you some small scraps if you can't find any locally.

Here are some photos:
http://www.audiocircle.com/index.php?topic=72808.0

Wayne

[chlorofille]

18mm MDF + 3mm lead sheet(contrained mode damped) and finally 10mm fiberglass.

Superb resonance/vibration killer.

Regards,
Chloro

[Wind Chaser]

Because I want more bass from a smaller enclosure, that's how smart engineers design equipment. I don't want my speakers to have an f3 at 90Hz. Or a speaker with an extremely large cabinet.

I most certainly agree with you when it comes to small enclosures, but for those who have an aversion to bass, a sealed enclosure would be the better option.

I also agree with you in using metal as the ideal material for a speaker enclosure.  I put the Jordan JX-92 into a ported semi cylindrical design that sounded fabulous.  Unfortunately I traded them for a 2A3 amp.