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Old 24th November 2012, 09:58 PM   #1
solly98 is offline solly98  United States
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I got these ( Atlas Sound - FC104 ) speakers today. I am wanting to use this amp ( Amazon.com: LP-2020A+ Lepai Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply: Electronics ) Will these work together? Also, im making a portable boombox so i am wanting to use a 12v lead acid battery to power everything. How will i hook the battery up to the amp to power the speakers? Also Will a plywood encasement work fine to hold the speakers? Sorry if these answers are already on here, Im a noobie and trying to learn.
Thank you in advance-
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Old 25th November 2012, 11:55 PM   #2
solly98 is offline solly98  United States
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Old 26th November 2012, 12:44 AM   #3
DUG is offline DUG  Canada
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Join Date: Jan 2003
Location: mississauga ontario canada
Well, the answers are probably somewhere on here and it is a large site that has been going on for a long time.

You do need to search and read and learn.

Some members have been members for years before they ask a question because they feel that they need to learn a few (or many) things to be able to ask the right questions.

The speaker you have selected is considered a "full range" so you might start in the Full Range section in the Speaker section.

I have seen threads that reference or show boombox builds...some are amazing.

The speaker you selected:
Are the parameters available to use in an enclosure design?
Do you have any programs for speaker box design?

The amplifier you have suggested is 20W. It might not be a good match for a 10W speaker that might be in a situation that someone "cranks it up" and then you need new speakers. Something to consider.

Have fun
Doug We are all learning...we can all help
"You can't stop the signal, Mal. Everything goes somewhere..."
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Old 26th November 2012, 05:55 AM   #4
Saturnus is offline Saturnus  Denmark
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Location: Copenhagen, Denmark
A good place to start for anyone building a boombox build would be my Boominator thread.


I suspect it'll answer more question that you can hope to ask.
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Old 16th December 2012, 03:53 AM   #5
Hat Alto is offline Hat Alto  United States
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Join Date: Dec 2012
Go for it Solly. Amp don't make no 20 watts. How about a hard side little suitcase on wheels from the thrift store enclosure. Paste it up w/ skate shop and metal band stickers. Look cooler than some doofus brown box for sure. Can use a rechargeable car jump starter thing for power - lots of things could work. Just don't put too much volts into it - fresh car battery got 14.5v, maybe too much.

Anyway, go for it. Post us a pic of the party!
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Old 16th December 2012, 12:49 PM   #6
Redshift187 is offline Redshift187  Canada
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Join Date: Aug 2008
Yes those will work together. The are quite efficient, which should work well with this sort of amp. Also, if I read the datasheet right, they have a built in transformer and you could use that to tweak the output.

As for 14.5V, these amps are not designed for more than 13.5V because they are missing 4 diodes for higher voltage operation.
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