• Item: DIY Synergy Horns  
  • Type: 3 way DIY Synergy style horns using 8" woofers, 3" mids and 1" compression tweeter.  
  • Posted: 15 April 2014  
  • Builder: SpeakerScott  
  • Country: United States  
  • Comments: 4  

DIY 3-Way Synergy-style horns...

I built these speakers of the course of late 2012 through September 2013. I had 4 or 5 prototypes along the way before I finally figured out the most important aspects.

Each speaker has 4 Dayton Classic 8", 8ohm woofers, paper cone, rubber surround. They are in roughly 80L of sealed volume...

The mid-ranges are 4 Dayton designer series 3" full range/mid-woofer drivers. Each one is in a small sealed chamber made from a 3" PVC plumbing end cap.

The tweeter is a PRV D290B 1" compression driver.

Finish is Target coatings spray lacquers and Duratex.

Each completed speaker ways about 85 lbs.

To describe the sound the only words I have are this: It's the detail of electrostatics, tonal control of a full range, with the musicality of a min-monitor, precision imaging of headphones without the in your head soundtrack problem. Add in all the dynamics of a horn loaded system without the honk or listening distance requirements...and that's about what you get. You literally can't stop listening.


  • DorinD
  • 16 April 2014 at 10:10AM
  • Nice job Scott!

    It seems very elaborate and I presume a lot of work went in designing and testing such a project. I would endeavour in a similar one but for the moment I'm in lack of courage...

    Best regards,
  • everard
  • 19 October 2014 at 07:03PM
  • very curious about your design. can we talk offline?
  • TonyB
  • 7 September 2015 at 12:40PM
  • I am quite interested in making these speakers.

    Can we communicate off line?


  • Gurumukti
  • 27 May 2016 at 05:33PM
  • Very hard and nice work!!! Good Job, Respect!!! I´m Speechles... Amazing!!!

    Greetings from Frankfurt / Germany


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