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Thought some of you guys might find this interesting. For the past couple of months I've been working on some DIY Synergy horns. For those unfamilar, you can read about it here:
In a nutshell, it's a coaxial horn in which the compression driver and closed back mids all load into the same horn. So you get horn loading and ultra high sensitivity down to about 230 Hz, and constant directivity all the way down as well. Walk up to a conventional speaker, you hear all the sounds disjointed, treble from the tweeter, mid separated, it's all a mess. With the Synergy horn, you can put your head in the mouth of the horn (a bit like the mouth of a lion!) and all the sounds come from one spot. This makes it behave very well in a room, unlike typical horns where multiple horns fight with each other and the sound stage falls apart everywhere but in the one chair.
I've built two ... S1 which is a 60 x 60 horn half a metre wide and then S2 which is one metre wide!
This is S1 from behind:
And S2 during measurement:
So how do they measure? Really well ... this is S2
It's been a lot of fun and this could be just the beginning. Quite a challenging project, both to design and build. The horn had all kinds of angles and there were many mind bending moments where I was scratching my head and thinking "why doesn't this work?" or "how the heck am I going to figure this out?!" But tackled systemmatically, one step at a time, just about anything is possible in time.
In a nutshell, it's a coaxial horn in which the compression driver and closed back mids all load into the same horn. So you get horn loading and ultra high sensitivity down to about 230 Hz, and constant directivity all the way down as well. Walk up to a conventional speaker, you hear all the sounds disjointed, treble from the tweeter, mid separated, it's all a mess. With the Synergy horn, you can put your head in the mouth of the horn (a bit like the mouth of a lion!) and all the sounds come from one spot. This makes it behave very well in a room, unlike typical horns where multiple horns fight with each other and the sound stage falls apart everywhere but in the one chair.
I've built two ... S1 which is a 60 x 60 horn half a metre wide and then S2 which is one metre wide!
This is S1 from behind:
And S2 during measurement:
So how do they measure? Really well ... this is S2
It's been a lot of fun and this could be just the beginning. Quite a challenging project, both to design and build. The horn had all kinds of angles and there were many mind bending moments where I was scratching my head and thinking "why doesn't this work?" or "how the heck am I going to figure this out?!" But tackled systemmatically, one step at a time, just about anything is possible in time.
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