I chose to simply not worry about it; it sounds good.
But if you did want to worry, based on https://www.parts-express.com/woofe..._q4pE8sxieB8Fn_nPzDJ0H-4fI_ZjggCPsITnPec1ygzG
24849 / ( 6.55 *44*44)=1.9
There's less than 2% sag which is well within their max recommendation of 5%.
PS: Finally figured out how to quote the last post yay!
Nice!
so what your friends say about your Boom Mobile Rig
how many hours you can play with your battery pack
It was a hit - this use case was static because I used it as a trial run as well (but did play on my bike ride over)... and we had to keep it below 50% volume due to 'neighbors' and 'hearing each other at the party'
With the aformentioned staying at 50%ish... it played for over 6h and was about half empty allegedly; but I haven't actually run it till empty. I have a spare battery as well I can easily swap.
There is some bracing but it didn't work out very well for the front/back... but what worked really well that I will pull into future designs (since it also helps with weight) is four threaded rods tensioning the (wide/large surface area) front and back together. Near (but not too close to) the 15" driver on the front, and going directly through to the back; and nuts tensioning them torwards each other. stressing the wood was inspired by the Jack Lite https://billfitzmaurice.info/Jack.html which does it via curvature which is... much harder.
Set up as a stack for my friend's birthday. I have a 2nd top I plan to make - or rather - I made to in two different designs to determine which I liked more and there's a clear winner. (White on top are Polk M3 speakers in parallel (8 ohm each) on one channel and the OSB speaker is on the second channel (but designed to be run in parallel with the 2nd top since they're 8 ohm each). Please ignore the cardboard amplifier/controls board - that will 100% get upgraded; this was my quick prototype to determine v2 changes needed (which include dedicated power switch for amp so that it can be last on instead of first... oops_
Cylinder on the back is a batter running it all. On the right back of it is the Track 4x4.
Also I have the 15" grill cover attachment kit... somewhere that has been lost to my apartment. But hey scrap wood works just as well.
Threaded rod pulls the front and back together and works really well for vibration mitigation.
Picture showing how the sub loads onto the trailer so sound can transmit smoothly without being impeded. It works great. Bottom of the trailer are old aluminum commercial window framing that was getting tossed during a renovation.
Cylinder on the back is a batter running it all. On the right back of it is the Track 4x4.
Also I have the 15" grill cover attachment kit... somewhere that has been lost to my apartment. But hey scrap wood works just as well.
Threaded rod pulls the front and back together and works really well for vibration mitigation.
Picture showing how the sub loads onto the trailer so sound can transmit smoothly without being impeded. It works great. Bottom of the trailer are old aluminum commercial window framing that was getting tossed during a renovation.
Yep! Saw someone selling a bunch of random audio stuff on fb marketplace - reached out asking to buy the JBL T202DI and hornguides for $80; he offered the whole package for $120 (15" driver I resold for $40, the peavy plates, two 15" grills, and mounting kit I lost) and I agreed. They were quite convenient... other than requiring me to use an 1/4" cable to send the audio over which is a pain.
They have built in crossovers at the appropriate frequency/for the appropriate speaker resistance for my needs. So figured why the hell not - and they work great.