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heavy duty sub enclosure [message #34628] Wed, 02 January 2002 09:19 Go to next message
benthemaniac is currently offline  benthemaniac
Messages: 2
Registered: May 2009
Esquire
i bought a pair of subs a year ago. they are from ultimate sound, titanium series, sb12

sadly i have been unable to get any info other than:
impedance 4 ohm
power handling 225 rms (i don't know or care what the peak is)
sensitivety 91.5dB @ 1 m
i would really appreciate additional specs but am having trouble finding any!
and they suggest terribly small box dimensions- down to .75 ft sealed and 1. ft ported. i tried this and it was no good. they are running nicely in a pair of 2.5ft cabs, lightly damped and ported with 2 3" ports. sadly these things lack mass due to mere 3/4 inch thick walls. i want to cast concrete cabs but lack experience, having only used wood/ply/mdf and even chipboard (never again) til now.
so i would like 1 suggestions as to the style of cab and type of loading. the cabs may be up to 10 feet tall, but the footprint should be moree than 3ft square.
then i would appreciate info on what concrete mix to use, what kinda reinforcing, i guess no bracing ;) and damping. these speakers need not move more than maybe 2 or 3 times in a lifetime, maybe never so weight is no issue.
thanks in advance for suggestions.

Re: heavy duty sub enclosure [message #34827 is a reply to message #34628] Sat, 19 January 2002 13:02 Go to previous messageGo to next message
Rudi is currently offline  Rudi
Messages: 25
Registered: May 2009
Chancellor
TRY making them out of concrete and have a Pine or oak baffle board to mount the driver. Cos both pine and oak are good solid woods, they have good stength and the concrete has even better stength. And cement all the joints and add three ports in the wood.
Wayne - maybe you can enlighten me! [message #34936 is a reply to message #34827] Wed, 30 January 2002 00:03 Go to previous message
benthemaniac is currently offline  benthemaniac
Messages: 2
Registered: May 2009
Esquire
I would like to build a Pi Type enclosure, and want to know whether concrete is a viable material, as i said size and weight is irrelevant, i just want somthing that is a break from the norm and sounds great. Many Thanks in advance!
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