Ceramic Speakers





Introduction: Ceramic Speakers

About: Hello! I'm Kirby and I like to build speakers and teach others how to do what I do. You can find most of my videos on YouTube though the "Web Site" link in my profile. I hope I can inspire a few of...

I build all sorts of speakers, from simple to technical, but one thing most of them have in common is some sort of woodworking. I realize not everyone has big woodworking tools like a table saw or a miter saw, but a lot of people do have a drill and a soldering iron! My goal for this speaker build was to make a pair of interesting speakers using found or bought objects for the enclosures. I chose these ceramic tea and coffee containers because they are pretty cheap, look pretty cool, and have a nice wood lid to mount the drivers to.

These speakers aren't designed to shake your house down with big bass, but they do sound really great. Stick around to the end of this instructable to hear how they sound.

More speaker building videos HERE

Step 1: The Ceramic & Stuff

I picked these containers because of their price, size, and they fit in pretty well with my kitchen. If you don't like the look (or taste) of the "coffee" and "tea" on the sides, you can always paint them whatever color you like.

If you are choosing your own containers, make sure the diameter of the lid AND opening to the actual container are greater than the baffle cutout diameter of the driver you choose. I failed to investigate the second part and my speakers just fit. Got lucky on that one!

Materials Needed

Ceramic Containers: https://goo.gl/mkhMC3

Speakers: https://goo.gl/2ZRl06

Or : http://amzn.to/2e2iyzw

Binding Posts: http://amzn.to/2fvwhA4

Poly Fill: http://amzn.to/2fvuaMM

Audio Amp: http://amzn.to/2fvu1cc

Scrap Wood

BSC Circuit

2x 0.50mH Air Core Inductors: http://amzn.to/2fhUlS6

2x 8 Ohm Resistor: http://amzn.to/2e2nCDS

2x 3.7 Ohm Resistor: http://amzn.to/2fhWc9A

Tools Needed

Drill: http://amzn.to/2fEwU9x

3" Hole Saw Drill Bit: http://amzn.to/2fbi6ik

Glass & Tile Drill Bit: http://amzn.to/2djSPjh

Soldering Iron: http://amzn.to/2dLPBHA

Glue Gun: http://amzn.to/2dCjf2K

Super Glue or Epoxy: http://amzn.to/2edT7q7

(optional) Center Punch: http://amzn.to/2enP6m5

Step 2: The Speaker

Find and mark the center of your lid with a center punch (I used calipers to find the center, but a ruler works just as well). Using a drill and a 3" hole saw, cut out an opening in your lid for your speaker. Place the speaker inside the hole and using a pen, mark the positioning of the screw holes. Use your center punch where you marked, then drill your screw holes. Make sure your screws are short enough to fit when the lid is placed back on the container. Screw in your speaker.

Step 3: The Binding Posts

Flip your containers over and find a place to put your speaker connection binding posts. Using your glass and tile drill bit and your hand, spin the bit to break through the glaze of the ceramic to give your drill bit a place to seat. You should hear a slight cracking sound as you do this. Now go slow and drill out these holes.

Add your binding posts with a bit of epoxy to seal the hole and hold them in place. Don't screw on the nuts just yet.

Step 4: The BSC Circuit & Wiring

I added a baffle step correction circuit to this build because the enclosure isn't much wider than the actual speaker. You can find out more about BSC circuits HERE.

The 8 Ohm resistor is placed across the speaker terminals and is represented as Rz in the diagram above (disregard Cz, it is not included in this circuit).

The 3.7 Ohm resistor and the 0.50mH inductor are wired in parallel on the positive terminal of the speaker. Represented as Lbsc and Rbsc in the diagram above.

Inductors and resistors are not polarized, so don't worry about which direction they are facing.

Make sure to leave enough speaker wire to allow you to connect to the binding posts at the bottom of the container. If your hand can't fit inside the container, a socket extension is a good way to get down in there.

Hot glue the BSC to the inside wall of the container.

Step 5: Seal It Up

I wanted to make sure the lids were good and tight, so I added some weather striping around the outside lip of the container. I added some poly fill to the inside of the container, then glued the lid on with epoxy.

Step 6: Da Stands

I took a few pieces of scrap walnut I had lying around and made two quick and simple stands. I added felt rounds to where the stands meet the containers and where the containers touch a surface.

You don't need this step, you can just add felt rounds to the bottom of the containers and have them lay flat.

Step 7: The Finish!

All you need to do is wire them to an audio amp, plug in a source, and there you go!

I really think these speakers turned out great. They sound very clean and detailed, great for casual music listening.

This is a great first speaker build project if you don't have many tools.

I have lots of other speaker building videos on my YouTube Channel if you want more!

I also have Speaker Build Kits & Plans on my website. New kits and plans added all the time!

Step 8: The Test

Take a listen for yourself and subscribe to my YouTube Channel for more!

Thanks! This was my first instructable! Any constructive feedback would be greatly appreciated!




  • Water Contest

    Water Contest
  • Clocks Contest

    Clocks Contest
  • Oil Contest

    Oil Contest

27 Discussions

Kirby, what device is that you have on the tripod? Is that your music playback device? If so, what is it?

1 reply

In the sound test video? Thats my stereo audio recorder. It's a Zoom H4n. Thanks for watching!

I wasted 11 minutes 38 seconds of my life waiting to hear what they sounded like just to find out it was the wrong video.

Wish there were a dislike button for this.

2 replies

Wouldn't a test normally be at the end of a video? Why didn't you just skip forward to the end (to realize it wasn't there) if thats all you wanted to see? I think thats why there's not a dislike button for that.

There's a video in Step 8 that allows you to hear the sound. It's recorded on a really nice condensor mic and would be pretty true to life. Listen to it on good headphones and you'll hear the difference.

I wonder if one of those ceramic ingredient cans for flour/sugar would be big enough?

Checkout diyaudio,com for the calculations for driver to speaker box dimensions. I know theres Theil calculations? They should work for any dimensions.

It depends on the speaker you're planning to use. As long as the diameter of the lid is greater than the baffle cutout diameter of the speaker, you should be good!

While this is very cool. you aren't making speakers, you're making enclosures. There's a big difference. I really like what you made but it's not "making" speakers. Peace.

2 replies

These are speakers! Enclosures go inside speakers to isolate the driver from other frequencies.

Not too many people listen to bare drivers. The enclosure is part of the speaker system like a violin body is to the strings.

You're going to need a woofer to go with these midranges, too. The last few seconds of his video, my sub just came alive .... oh, that wasn't his speakers, that was direct.

Call me foolish, but I thought speaker cases had to be vented? Or are these special speakers that don't need it? *curious*

1 reply

No they don't need to be vented. It's even harder to create so called "bass reflex" case for speakers (it needs quite complicated calculations).


1 year ago

add a Bluetooth link and good PSU ?

Now you need a woofer. A sewer tile or glazed tile enclosure (sauerkraut crock?) would do it. You could use an offset hole and not mess around with the equalizer.

To me the video just sounds like your room, or maybe it's the recording. Better to use a tone sweep and measure the SPL, so you can find the peaks.

Caution people that using a different speaker or enclosure size invalidates the design and they have to do the calculations themselves.

what would be the total cost in making this ?