[mike 01hawk]

Here's the diagram on making a Tumult Cabinet out of double walled 3/4 MDF (1.5inch thickness total). It took 2 4x8 sheets with plenty of leftover for another project. After figuring the plate amp (Parts Express PE 1000) and driver will be taking ~0.5cf... that leaves 3cf for the driver to play with.


I didn't go with any internal bracing... just 1.25 bottles of wood glue and a bunch o brad nails. The thing is a fuggen tank!!! Two people who are in shape and workout can get tired moving this puppy around.


Anyway, here tis... this thing is a friggen monster. I've had it finished for bout 3 months now. Highly recommend it and would do it all over again if I had to. Blows the Sunfire out of the water. Sub is $500, amp $400... wood and misc supplies and a couple dinners for my helper, it totaled out to ~$1000. Sure wish I knew about HT DIY Sub Online retailers before I bought my Sunfire, i coulda saved a few hundred dollars.


Oh, btw, the finish is actually truck bedliner in a spray can you can get @ Walmart for something like $6 a can. Needless to say I'm very impressed for a DIY approach. Finger prints went away too btw, paint was still drying.

http://www.drstang.com/Tumult/images/DSCF1267.JPG

http://drstang.com/Tumult/TumultCabinet.jpg


Rest of pics: http://www.drstang.com/Tumult/

 

[Ben L C]

Very nice. Built myself a tumult with dual 18" passive radiators. I don't see myself getting another sub for a long time..

 

[AJGlennon]

Very Nice.


Have you done any testing with an SPL meter to see how low it goes?

 

[DMF]

Here's an idea. Over in Home Theater Builder section and in Power Buys, there's a sale on for a new product - Green Glue. It absorbs sound. In HT construction they use it between sheets of drywall and between drywall and studs as a sound isolator.


If you used it between the layers of MDF, I bet it would totally deaden any box resonance.


Hmm?

 

[mike 01hawk]

Quote:

Originally posted by AJGlennon Have you done any testing with an SPL meter to see how low it goes?

I've got Radio Shack's analog SLM and the Avia disk.


How is a SPL gonna determine frequency range though?


Link me to a standard test and I'll run it when I get home tonight.

Quote:

Originally posted by DMF Here's an idea. Over in Home Theater Builder section and in Power Buys, there's a sale on for a new product - Green Glue. It absorbs sound. In HT construction they use it between sheets of drywall and between drywall and studs as a sound isolator. If you used it between the layers of MDF, I bet it would totally deaden any box resonance. Hmm?

I wouldn't know... I just used a foam brush and regular old yellow wood glue in-between the sheets of MDF. My kitchen cabinets resonate before my sub box does

 

[jjdche]

Nice sub mike!


I bet that thing seriously rocks the house!