Just want to thank Frohlich again for hosting, being such a great host, and lunch. All the people I've met through AVS have been great and Frohlich more than held up that tradition.
So let me start by saying Frohlich has a gorgeous home and his basement and theater room are really, really nice. He calls himself anal and I'm sure many of us have those traits but his attention to detail is exceptional.
From an acoustical stand point, Frohlich's room is a mess.
He has some bass traps in 3 corners and a nice diffuser/absorption piece on his wall that looks like a piece of art. But his room is open on the front left and rear left. And his side surrounds (Triple 8s!!!) are in front of his very nice theater seats. And the rear surrounds (also Triple 8s!!!) are too far to the corners and real close to the seats. Of course I would have never brought these things up if his room didn't sound as nice as it does. He wanted some feedback and I simply said I really like the sound of your room. I was surprised it sounded as good as it did with the less than optimal layout. The surround effects were very good for any placement, much less where his surrounds were located. I don't know how much of that had to do with him having big boy Triple 8s as surrounds but the effect was very nice. The end result of his room is one that most of us would be fortunate to have.
We started off just listening to his system with a few movie clips and some music. As I said, I really liked his system. Well balanced with a nice house curve to the bass and good surround effects. Listening to his system reminded me how much I like the upper end and midrange of the 212s...really nice. This was also my first time hearing the JTR S2s and I was quite impressed with them. Quite a bit of output from 4 18" subs and they sounded very nice.
So let's get to some measurements. First we have the infamous sealed vs ported 212 results. These are direct from my RME FireFace UC preamp to his Parasound Halo amp.
And here is the Cat included in the previous measurement.
And then we have an interesting one. I've mentioned that the 215 sounds a little different from the 212 and I'm not sure why. Is it the wooden horn, the larger horn, smooth vs texture, crossover, I don't know? But Frohlich has a custom 228 with a wooden horn and the 212 compression driver. The wooden horn is smaller than the 212 and 215 horn but we thought this would be an interesting measurement none the less. I didn't have time to listen to his center by itself to determine my thoughts on its sound. In normal listening it didn't call attention to itself, it just fit right in with the rest of the sound system.
And here is one Frohlich wanted. He mentioned he had never had his room measured so I tried to talk him out of it but he insisted seeing the results. So here is his system put back together with Audyssey vs with it turned off. These measurements include the S2s...look at that nice, deep, output.
Again, it was great meeting you Frohlich and thank you very much for being such a great host.