Kanojo Blog Blog-Blog

7Sep/100

“HiFi” on the cheaps, DIY Speakers for few euros…

As a friend and myself built me a pair of quite nice - not to say wowzie - speakers for music production and DJing a few years ago i was now eager to try myself. To get the basic idea of craftsmenship and woodworking i started not by developing the speakers myself - as it was done by my friend for me back then - but go for a well known design by a guy from the german Hifi-Forum: The TenÖre Transmissionline Broadband-speaker. The name comes from german dialect/puns and roughly means "10-euro thingy". A perfect object to train the techniques needed for more complicated work...


So, on we go. Even though this is pretty straightforward you need a bit of equipment to get it right. The basic equipment is glue - quality wood-glue, as sold by Ponal. The secondmost important thing is probaby some kind of grinder/sander, as you would go crazy doing all this by hand. Next would be a router (no, not the computer thingy but the power-tool...) and/or jigsaw... but more of that later.

!BIG FAT WARNING!

THIS IS NOT A HOWTO - IT IS A DOCUMENTATION ON HOW I BUILT THESE SPEAKERS. I AM NO EXPERT AND THIS IS NOT A ADVISE ON HOW YOU SHOULD DO IT. I MAY HAVE DONE SEVERAL THINGS WRONG/SUBOPTIMAL!

Okay, here we go:

Basic materials needed ... wood (MDF), the speakers ... lets go ÖP

Closeup of the broadband speaker and the hole - we already used the router here

The hole got quite okay - since the speakers aren't to be counterbored(?) anyways

Okay, now for some glueing action.

Make sure everything is airtight - you don't want any leaks nowhere. to be sure smear some glue in the corners/angles...

Moar glueing...

Be sure to have a pack of cleenex or similar handy - and don't do this on grannys good carpet 😛

After only a hours (or two to be sure) they should be okay to work on...

As we suspected leaks we smeared even more glue in the angles...

Then drilled the holes for the connectors on the backside. even if it's not so important here we made sure we have a tight fit so we need to screw them in using force - again to avoid leaks.

those fluffy pieces of clouds are called "Sonofil" - its used to absorb sound / damming on the inside of the box. you could also use sheeps wool ....

After tearing it apart a bit to make it even fluffier put it in the box like this

then, after soldering the cables on the backside connectors, routing them through the inside and soldering them on the chassis - time for a first test

Also, more suspected leaks - smearing from the outside Oo

After enough testing and smearing we worked on - here we milled a angle on the front using the router...

Worked out okay it seems...

Glue glue glue and some more glue - hell, this is going to be fun to sand

After some deliberate sanding using a eccentric sander ... this emerged!

smooth as a babies ... well, whatever is smooth on a baby!

The guy that wanted to have those speakers wanted them ... like this. well, tastes differ i guess

the color is named "pretty violet" - makes me pretty violent, still the paintjob worked out okay for a first-timer

there *are* marks, okay, but ... its only a 10eur speaker and ... firsttimer, remember?

Crinkles here are going underneath the chassis anyways...

Final product looks okay on the desk!

Yay!

So - the final product seems okay, and for less than two days of work (not fulltime!) its a really nice speaker. It certainly lived up to my expectations of how good a 10eur (actually more 16-17eur) speaker can sound, and its hell better than most pc speakers you can buy out there for maybe as much as 30-40eur. Its - at least in my opinion - worth the time and effort - even if only to learn something, and have tried something new.

This project is - for me - a base to build upon - as in that i want to build more and more sophisticated speakers with better craftsmenship, so this is just a start. I hope you maybe drawn into Speakerbuilding yourself as it is a vast and interesting hobby - and you can start off with almost nothing still getting excellent results - especially if you're not into looks it gets way easier :).

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