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The boombox (+build pics)

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subbass View Drop Down
Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote subbass Quote  Post ReplyReply Direct Link To This Post Topic: The boombox (+build pics)
    Posted: 24 July 2009 at 2:52pm
Got around to making the thing finally :)

Day 1



Cutting them holes. The circle guide for the router was crap so i got me ancient jigsaw out Big smile.



Pretty spiffin tweeter holes i think! marking tolerences were <1mm, cutting was <1mm as far as i know. Smile (cept for the reflex ports cos the jigsaw didnt like turning that tight Unhappy )



downpipe nicked off a (mates old) house. CLASSY. is perfect diameter for the ports though Thumbs Up



mess?



decided to have them mounted from the outside. made alot more sense.. Gonna have it all covered with a Markie grill to hide them a bit



cutting the rest of the body. took f**king ages Big smile



anddddddd done! used the sheet of 4x4 perfectly, got enough left for sealing off the mids inside, bracing and bits

hopefully will have the body rounded off, stuck together and lightly finished tomorrow


edit: im a spacker at speeling.


Edited by subbass - 11 April 2010 at 6:07pm
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Tony Wilkes View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony Wilkes Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2009 at 2:59pm
What are you going to use it for?

Tony
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Post Options Post Options   Thanks (0) Thanks(0)   Quote subbass Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2009 at 3:08pm
well, me and my mates are almost always up on the downs (a giant park) on sunny days .. got uni coming up so will take it there. And to use as a general system at home, gatherings, little parties and stuff. can be mains / battery so that makes it flexible


Edited by subbass - 24 July 2009 at 3:08pm
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Tony Wilkes View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony Wilkes Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2009 at 3:46pm
So you will run it in stereo?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote subbass Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2009 at 4:34pm
yeah, full stereo. ill post the specs and everything up once ive finished it.

for the moment its shaping out to be 20w HF, 40w mid and 60w bass per chan (proper RMS). so should give 200wrms total nicely :)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jake_Fielder Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2009 at 6:06pm
What are the bass drivers?
Nice projectThumbs Up

Im dying to make a project like that, im just too busy!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote subbass Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2009 at 6:16pm
thanks

they're the 8" skytronic drivers off blue aran. the best compromise i could find between price, size and output really :). i really wanted to keep the boombox form factor, so any bigger than 8" would have been too much (factoring in the increased volume needed)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Killyp Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2009 at 6:47pm
Gimme a shout subbass when you're next gonna take it up there in case I'm in Bristol. I'll bring my Neil Diamond CDs...

Edited by Killyp - 24 July 2009 at 7:06pm
<profound statement>
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Drimacoustic Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2009 at 7:32pm
What are those mids? They look like Emi Beta 6.
love begins below 40Hz
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Post Options Post Options   Thanks (0) Thanks(0)   Quote subbass Quote  Post ReplyReply Direct Link To This Post Posted: 24 July 2009 at 7:56pm
haha, no problem killyp

mids are fane sovereign 100s (6")

and before anyone asks, the tweeters are fane FPT80s, (cheaper) clones of the APT80s


Edited by subbass - 24 July 2009 at 7:58pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote subbass Quote  Post ReplyReply Direct Link To This Post Posted: 25 July 2009 at 6:35pm
Day 2

Had to go to work today so didnt get that much done Unhappy.



sorted the wiring harnesses. Each amp is gonna receive 38v, so wiring is able to be relatively small. power is 3 yuasa 12v, 7Ah in series



Heres the crossover if youre interested. its surprising capable and does loads Big smile. ignore the EQ settings, i dont normally run that much gain Tongue



cleaned up the boards after the jigsaw ripped up the underneaths pretty bad Dead. theyre all good now though!



^roughly put together

made some inner partitions to seal off the mids in their little 5L box. should be able to do fullrange once i vent it as well - so i can run only those + the tweeters if i want to save some power... (can be EQ'd for a bit more bass). And its finally a shape now Thumbs Up. size is about 820x270x300

question: am I right in thinking its best to round off the edges with the router once its all assembled? corners are a problem otherwise. THANKS


Edited by subbass - 25 July 2009 at 6:38pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote davey t Quote  Post ReplyReply Direct Link To This Post Posted: 25 July 2009 at 9:19pm
Hey mate.. I like your styles!

I think I missed the start.. whats the amplifiers again? Looks like you've got yourself a tripath amp there in the background. 

I guess it's gonna be heavy no matter what.. but i would have thought about using lipos. SLAs are cheaper mind. 

What the current draw on that crossover module? I always build my own using low current op-amps etc. because anything off the shelf would have high power consumption. The 3A fuse on that thing makes me worry! 

I'm in bristol too. get in touch if you want a hand or when its done I can come check it out! 
Minirig portable soundsystem movement
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