I just saw this review for my rock and roll headphones. The reviewer does not use the best amp for it, the RAAL VM-1a, and his comments about the headphone running a bit hot are surprising. I purposely use a hot DAC, the Benchmark DAC3B, with the VM-1a because my smooth DAC is not a match with the VM-1a. My DAC3B is too hot with my 2-channel setup.
I do have a different view of the 2 RAAL headphones from this reviewer. I am a 2-channel guy so the SR1a is the holy grail while the CA-1a is incredible in-spite of the fact that it sounds more like headphones. The reviewer liked the CA-1a more because he was not into 2-channel audio.
The reviewer really has not heard the best from the headphone using the amps he tried. He also explains why I call them rock and roll headphones.