When I first heard 7106 used with Klipsch speakers I was concerned it was a little to edgy, not like the 7200's I was hearing with B&O and and Mac ML and XR series speakers. Turns out it wasn't the amp but the Denon HT processor he was using. He later upgraded to an MX 134 and the sound was nice and smooth. I Used a 7106 with my speakers while one of my Crowns was being rebuilt by the factory one time. There was a definite difference just as I had heard with a 7200 that I liked. I think the newer amps of today have some differences. I can't really call the 207's new but compared to the others there is a very listenable quality with the right source material. Seems to me that where the biggest difference in sound lies between the different Macs. The latest amps, before the recent introductions could produce more nuances than the older amps. I contribute that to the Quad design and better auto formers. Amps with out autoformers depend on the components of the circuitry more directly. The latest integrated and the 8207 with the self tracking outputs seem to have added clarity in the HF's. Some times that's a good thing unless your HT processor or Stereo pre-amp has issues. My Mx119 and 120 were very easy to listen, too. But the clarity of the MX 151 brought back the defined bass I was missing and the clarity of the C-29 I had been missing when I bought the C-34. I bought a MP100 for MC cartridges and its
known for being a little bright. Well feeding my MX 151 directly digitally was a big surprise. Yes the C-34 being fed by the MP 100 was one revelation using analog signal, the MX 151 being fed digitally by the MP 100 another. The 207's easily shows these differences. Using electrostatic head phones and the 206 or 2505 not as much difference. Yes the 207 is a better mouse trap than the 206. With a great source the 207 and MX 151 are just amazing. But if the Movie and Stereo recording people haven't done their home work the MX 151 will reveal it in a heart beat where the MX 119 and MX 120's I owned wouldn't. They did reveal what I call congestion and depth in staging like a 151. Another thing is using the 151 If I change between the balanced analog out puts of my 861 or 891 and the digital out puts with the 119 or 120 I could hear a difference, preferring the smoother analog sound. I don't hear that difference with the 151. So If I ever get back into a different analog source needing balanced inputs I won't hesitate to give up the analog outputs of the MVP players. What I am trying to say is with my system there can be but not always be a difference between the 206 and 207, depending on the source material and pre-amp/HT processor you use.. And I am still using un balanced out puts of the 151 feeding unbalanced to the 207's because my Electronic crossovers are now un balanced. They were originally balanced using 1:1 input and output transformers, But I removed them because they choked up a bit on the bass, I discovered many years ago when using Crown Amps. If you really want tight bass , to tight sometimes, just use Crown Power amps below 80 HZ. My issue with Crown is above 80 Hz, where they can be come fatiguing from 200 to 5,000 HZ and the highs above that. pretty unrealistic.