diy jobsite boom box

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hi guys,

hope everyone had a good christmas and new year!. now the amps turned up i need to pull my finger out and get all the other components to build this. getting the tangband 5 1/4 subwoofer friom the mrs as a anniversary present and also a passive radiator thinking about this one...
Dayton Audio DSA175-PR 6-1/2" Designer Series Aluminum Cone Passive Radiator
Dayton Audio DSA175-PR 6-1/2" Designer Series Aluminum Cone Passive Radiator - SoundImports

the only other thing is the full range drivers would decent 4 inch drivers be suffice?

look forward to hearing your sugggestions.
 
Seeing as I've got that amp now guerrilla would like to carry on as is. Just powered it up and connected some old car speakers I had laying around and really impressed with it. It's going to be a struggle to squeeze it all in. I'm wondering is I could go to some 3 -3.5" full rangers of decent quality would make it all easier to squeeze in.
 
I think you would be better off using (2) passive radiators actually. In my sub the small size combined with relatively large passive + mass makes it move around quite a bit on a hard surface. Seems okay on carpet, but that makes me wonder how much energy is lost just vibrating the whole box back and forth. If you do opposing passive radiators it would cancel out the issue that I am having, leaving you with a box that does not want to walk away!
 
Fun project. It would be nice to keep the case totally intact so you just open the lid when it's in use. Love the idea of being able to use battery tool battery to power it too.

Re driver size would smaller drivers stacked behind each other (Isobarik) deliver the sound required whilst being more compact?

Linn Isobarik - Wikipedia

Would let you keep a sealed box and according to wikipedia effectively doubles the size of the cabinet.

Expanding foam between the outside of the case and the MDF inside would damp things enough without making it super heavy.

Have fun
 
Got these ordered today
FaWFVBm.jpg


So only a few little bits left to get ordered and once all has arrived can start building it
 
hi guys
been doing a lot of searching last couple of nights in relation to the enclosure design for the sub ive come across this design by paul carmody
ejurmw2.jpg


im planning to use this design minus the drivers to the side as with how the box is designed i dont have the width to do it. i can get just under 14" in width but need to drop the 8 inches down a tad an extend the box back a bit. for the 4 inch full range drivers ive got coming i was going to go with some 110mm waste pipe with sealed ends to take the drivers which will sit ontop of the sub enclosure.
im going to build the ply box that goes inside the tool case first and see how it sounds before i start mullering the box fitting it all inside.

in pauls write up of the build he mentions that the sealed enclosures for the drivers are about 1 litre each. should i just re jig the box minus the 2 litres for the drivers? he mentions that the sub enclosure has around 6 litres plus whatever the port etc works out at. when you work out the total volume of the box from his dimensions comes out around 12 litres take off 2 for the sealed enclosures leaves you 10 so are the other 4 litres allowance for the port and the amp etc or am i totally misunderstanding the whole thing

many thanks

paddee
 
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