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Hi Romy,

Sunfire? No! Who would add a Sunfire to this system? The black box in the pictures a power amplifier for the midbass horn.

A second MF could be interesting. I will see if we can do some test set up of this. Per has the space for it, I don't. See the image of my room and the very difficult conditions I have.

I use GPA 515-16G, Radian 950PB-16 and TPL-150H. I had a pair of vented subs but I got rid of them a month ago. I was not able to stand them any more. Now I will build a pair of Tapped Horns and see if they can be used. Anyway the Altec (copy) cabinets sound better laying down, at least in this room.

Electronics, crossover and so on: me and Per use similar stuff. All DIY minimalistic (discrete, minimize number of gain stages, no feedback) approach. We have a friend who is a skilled and creative designer of electronics and we are lucky to be allowed to use (but not share) his designs. The latest is a new amplifier design. Per use this design for all his amplifiers, I use them for mid and tweeters so far but will be building the bass amplifiers on this circuit as well.

Walls, floor, ceiling! Yes, all these are bad things! As noted with the barbeque system a free space is so much better. You can easily see the problems I have indoors!

The TPL is nice! Actually the first tweeter I have heard that I can say is good. All others I have heard add some HF in combination with hissing, sharp metal or broken glass. I have also heard a few ribbon tweeters with a nice tone that not was possible to integrate with a mid horn. We both cross it at 7kHz, 6dB and that works well.

About the bass horns: I had the same concern before I heard them. Per's set up is now time aligned. The bass horns sort of fill the whole room. I can't say that I think they need any distance to bloom. In the listening position it is quite easy to forget the bass horns. The punch comes from the midbass horns. Walking around in the room the bass sounds a bit different, but I think it has more to do with room modes. They can produce some serious acoustical power and hearing that with the quality and LF response they have is spectacular. This is the only system I have heard that has good bass response. Nothing strange really, same principle as midbass and mid horns, but the size is difficult to fit in a home.

Best Regards: Ulf

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