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Project by kiefer posted 148 days ago 1782 views 6 times favorited 21 comments Add to Favorites Watch

All in a days play.
Made this little I PHONE AMP for my wife today and it was a lot of fun .
I saw John Schutz post a couple of these and I thought that it would be fun to experiment with .
The body is made from three layers of maple with the sound channels in the centre one on each side are sound chambers with the having a 3/32” X 2” pine dicc at the back and the same at the front with a 3/4” hole to let the sound escape into the square horn for the lack of a better word .
The two horns are 3/32” pine also and just glued together and glued into a square opening in the front layer of the body .
To charge the phone just flip it over and plug in the cord that way the sound channels stay well separated not connected by the opening required for the cord plug .

It works great and amplifies the sound real nice and clear .

-- Kiefer 松

21 comments so far

View RadioActiveRich's profile


12 posts in 148 days

#1 posted 148 days ago

Neat design. I like things like this made of wood. You get the warmth and creativity of wood blended with the modern feel of technology. Retro cool meets modern art. Good job!

View woodshaver's profile


2754 posts in 1984 days

#2 posted 148 days ago

Nice job on the AMP Kiefer! It’s very stylish, I like the design.

-- Tony C , My high school shop teacher said "You can do it"... Now I can't stop!

View DocSavage45's profile


4897 posts in 1474 days

#3 posted 148 days ago


Has your sense of style and purpose! Nice balance of color.

-- Cau Haus Designs, Thomas J. Tieffenbacher

View Boris 's profile


152 posts in 1546 days

#4 posted 148 days ago

That is pretty cool

View doubleDD's profile


2397 posts in 675 days

#5 posted 147 days ago

A high tech personal boom box Kiefer.
Good fun build. Nicely done.

-- --Dave, Downers Grove, Il. When you run out of ideas, start building your dreams

View Greg..the Cajun  Box Sculptor's profile

Greg..the Cajun Box Sculptor

5010 posts in 1940 days

#6 posted 147 days ago

Very nice…looks much better than those plastic ampslifiers that are everywhere….

-- If retiring is having the time to be able to do what you enjoy then I have always been retired.

View Daveshefiled's profile


3 posts in 147 days

#7 posted 147 days ago

Well it’s creative idea.


View stefang's profile


12935 posts in 1966 days

#8 posted 147 days ago

Nice project Klaus.

-- Mike, an American living in Norway.

View jaykaypur's profile


3316 posts in 1040 days

#9 posted 147 days ago

Definitely a nice accessory for the iPhone. Good job.

-- Use it up, Wear it out --------------- Make it do, Or do without!

View SPalm's profile


4788 posts in 2513 days

#10 posted 147 days ago

That looks pretty cool.


-- -- I'm no rocket surgeon

View RogerBean's profile


1125 posts in 1585 days

#11 posted 147 days ago

Cool idea. Sort of low-tech hi-tech. :-)

-- "Everybody makes mistakes. A craftsman always fixes them." (Monty Kennedy, "The Checkering and Carving of Gunstocks", 1952)

View hoss12992's profile


2584 posts in 524 days

#12 posted 147 days ago

This is really cool. Great job buddy

-- The Old Rednek Workshop

View TheWoodenOyster's profile


742 posts in 566 days

#13 posted 147 days ago

Well done. I think this design might be a little easier to do than hollowing out half spheres for each speaker. I might give this a whirl.

-- The Wood Is Your Oyster

View Blackie_'s profile


3376 posts in 1144 days

#14 posted 147 days ago

What a neat project Kiefer.

-- Randy - If I'm not on LJ's then I'm making Saw Dust. Please feel free to visit my store location at

View Roz's profile


1659 posts in 2418 days

#15 posted 147 days ago

Cool, its a wave guide.

-- Terry Roswell, L.A. (Lower Alabama) "Life is what happens to you when you are making other plans."

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