IPL Acoustics M1TLm Ribbon Transmission Line speaker project – Part 6

Project completed.

I’m really pleased with the outcome, the speakers look great and whilst I’m no audiophile they sound fantastic. They are incredibly detailed and don’t suffer from any of that wallowing bottom end messiness prevalent in most Hi-Fi speakers.

The whole project has been incredibly rewarding and has gone some way to restoring some faith in my ability to use my hands. My other half Mandy suggested I start the project to stave off the New Year blues in January, the result has been the discovery of a whole new set of skills and an increased feeling of self worth.

From an aesthetic point of view they look great in the front room, a proper piece of modern furniture. I’m glad I stuck with my original plan not to use the grills as they look far more tech in their naked state, however I am aware the the 5″ magnesium cones are a little exposed which could be an issue for inquisitive kids or friends that like poking things. The black surrounds of the drivers and the golden cone set the grey finish off really well, couldn’t be happier.

The IPL M1TLm Ribbon Transmission Line kit can be found on the IPL Acoustics website.

Here are some tools I couldn’t have done without:

  • Black and Decker Workmate
  • Irwin clamps
  • Decent wire cutters
  • Electric sander
  • Bosch hot glue gun + several packets of glue!

Speaker project build process

  • Phil Taylor

    Thanks for the build description. I really enjoyed it. I made a pair of the IPL M3TL some years ago – similar spec. to yours though with conventional tweeter. They have given great service but I was never happy with the quality of finish I achieved (first time I had attempted this kind of thing and was learning as I went along) Your blog has inspired me to make a new pair using the many tips you gave.

  • Thanks for replying Phil. I’m happy with my finish although it could be a lot better, I’m only a hobbyist after all. It’s like all these things though isn’t it? You only get one go at it, if you were doing it every day you’d learn from the mistakes quite quickly.

  • spencer evans

    Thanks for a really informative and detailed build thread. I really like the fact you painted the speakers, it makes more practical sense to have finish that can be re-painted if they get too marked. I have some shiny gloss speakers at the moment, they are nothing but a pain in the a*s*! Showing finger marks and dust even just after polishing them. I have just ordered myself the IPL S2tlm kit…as a hobbyist and firm believer in common sense construction your right up has given the confidence to give this ago. I shall be refering to your excellent photographs on my laptop as i go. Many thanks Spencer.

  • Thanks Spencer. For me the most invaluable tools were the Irwin clamps and the Workmate to hold the units steady whilst working.

    I took my time over them as well, thinking everything through twice and referring constantly to the instructions.

    We have a toddler running around now so I’m going to add the grills as inquisitive finger have already started poking around.

    All the best, let me know how you get on. Cheers

  • Woj

    Just found your speaker project. I am in the process of building mine S2TLK speakers. I found your tutorial quite interesting and educating. Do you still use your speakers? all the best

  • Hi Woj, thanks for getting touch. Yes, still using my IPL Speakers in the front room. Visitors always comment on them and how great they sound. A pair of daily work horses as we listen to a lot of music and watch plenty of films. Let me know how you get on, I’d be really interested to see some pictures of your project.