Cell Phone Audio Amp Two

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Project by FloridaArt posted 05-15-2016 04:13 PM 1352 views 3 times favorited 2 comments Add to Favorites Watch

May, 2016—This is my second attempt at making a passive audio amplifier for smartphones. With this one the sound loops around in an ever-expanding channel until it exits out the front. I also configured the slot so that any cell phone could use this one, regardless of which side of the bottom the speaker is. But with that flexibility comes a slightly reduced sound volume.

So this was another band saw box blank re-purposed into a passive sound amplifier for smartphones.

-- Art | Bradenton, Florida

2 comments so far

View Woodknack's profile


12455 posts in 2614 days

#1 posted 05-15-2016 05:04 PM

Too bad you didn’t get a pic preassembly. How does it perform?

-- Rick M,

View Roger's profile


20965 posts in 3038 days

#2 posted 05-16-2016 01:08 PM

I do like the design you’ve came up with here and the other one.

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed.

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