The outside of the case is made from solid maple and the top panel is 1/8" thick aluminum painted black. I finished the wood with three coats of waterbased polyurethane.
I enjoy the easy, tidy lines and the stark contrast in between the painted black parts and the warm natural wood and amber glow from the meters.
The project uses an LM4780 dual channel chip amp that can put out around 50 watts rms into 8 ohm speakers. Not very powerful, but the speakers I constructed this for don't require a lot of power.
I designed and made the PCB for the chip amp, but ended up renovating the design and making a new circuit board when I made a lot of errors on the first one. All part of the enjoyable!
Likewise inside the amp case is another circuit board that has an active filter that eliminates the bass. The amp is more than efficient in complete range output, however I don't desire any radio frequencies going to the little speakers and the active filter does that.
I constructed this amp for these speakers:
NOTE: The chip amp I utilized for this is outdated now, however I have a couple of from when I was much deeper into electronic devices 15 years back.
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The outside of the case is made from solid maple and the top panel is 1/8″ thick aluminum painted black. I finished the wood with three coats of waterbased polyurethane.
I love the simple, clean lines and the stark contrast between the painted black parts and the warm natural wood and amber glow from the meters.
The project uses an LM4780 dual channel chip amp that can put out around 50 watts rms into 8 ohm speakers. Not super powerful, but the speakers I built this for don’t need a lot of power.
I designed and made the PCB for the chip amp, but wound up redoing the design and making a new circuit board when I made too many mistakes on the first one. All part of the fun!
Also inside the amp case is another circuit board that has an active filter that cuts out the bass. The amp is more than capable of full range output, but I don’t want any low frequencies going to the small speakers and the active filter does that.
I built this amp for these speakers: https://youtu.be/ifRdxoOLhKU
NOTE: The chip amp I used for this is obsolete now, but I have a few from when I was much deeper into electronics 15 years ago.
Damn – wood, metal, plastics, electronics, you’re even artistic! I have trouble making mitre joints fit in picture frames. I wonder why I bother.
That’s a mighty fine looking and functional piece of art you’ve created there. Well done!
Gorgeous looking amplifier John.
I have noticed that your recent videos seem faster paced compared to older ones. Sometimes I struggle to follow, though as long as we have a pause button it’s fine.
same here and it always starts like in the middle of a step or sentence….
Stunning, John! Amazing work!!! 😃
Stay safe there with your family! 🖖😊
Wonderfull case, the use of metal and wood is gorgeous !
Videos under 10 minutes and straight to the point? What a treat!
Love how you use mix any other material with wood. It gives me tons of ideas. (I’m not nearly as much into the reverse – the unexpected stuff made from wood, like the bandsaw – but I think one or two of your viewers are!)
You are taking this to a new level John. I love the details – maple case, the backlit VU meters, the center reveal… Macintosh will be copying your style!
That’s an amazing project! You make cool stuff and your voice overs and videography/production is just as amazing! Thank you.
Simplesmente coisa de artista minimalista, visual limpo, retro sem ser velho, juntando vários gostos e estilos num projeto só! Caro Jhon meus parabéns o Sr é um artista minimalista sem ser chato ou abusa nos detalhes, tudo na medida e proporção certa, virei seu seguidor a partir de hoje!
Love it John! Such a sleek design and it looks beautiful. Well done 😁
After you made your speakers I was curious if you’d make an amplifier to go with them. That’s a really nice power amp you made!
The camera angle on the CNC is very unique and well done.
Beautiful work, sir!
Looks fantastic! Great work, John. I really like the gap through the center. It adds a lot more than I would have thought.
Thanks Drew 🙂
Ficou ótimo parabéns 👏👏👏
Thank you for jumping right into it John! I find myself skipping the first 1-2 minutes of everyone else’s useless introduction and subscription/like begging. If your content is good, one shouldn’t need to ask. And by the way, you never cease to amaze me with your design and all-around building skills.
Very nice. A beautiful piece actually. And functional. I too have an interest in both woodworking and electronics. Being “between workshops” at the moment, this gave me a much needed fix – thank you.
I don’t watch John’s videos as often as I used to. But I must mention, everytime I see that table saw it puts a smile on my face. Incredible work you do big man👏🏾
Beautifully smart John, a really nice design. Recycling old parts is a nice idea too – they have a certain feel that new stuff lacks.