Brief comparo with the 1R. Using the song 'The Horizon has been Defeated' from Jack Johnson's On and On cd. Yes I am using a CD , straight from my CD player to the PA2V2. I see why people say the 1R has a midrange bump. Jack Johnson's voice has a nasality and slight unnaturalness to its sound. and when the guitar goes into a bit of feedback between verses, it really stands out.
The 7520 on the other hand sounds more natural with the voice and the treble extends a bit more. I think the recording is a bit sharp in the hi hats, and that sharpness is brought out by the 7520. The 1R also sounds to have more treble, but as you listen you realise that the 7520 is actually more extended yet still sounding less.....
As to the bass, there is no comparison. The 7520 is just hands down better. More impact, volume, texture and depth. The bass is there with the 1R, but is recessed compared to the 7520 and takes a backseat to the forward midrange. The 1R is easily an enjoyable phone, but I can now easily hear the 'honkiness' in its sound signature that has been reported by others.
They are both enjoyable phones, but the more i listen, the more I am drawn to the 7520. I will admit that I wish the mids were a bit more forward, because that is the sound that I have become accustomed to, but I am still enjoying them. I must also admit that they are very easy to play too loud. turning up the volume knob only brings a wider smile to my face, especially if the recording is not bright.
Will try to listen more this weekend, but with two kids......... well you know how that can go. I will ask my daughter her opinions on the two phones. At 5 she is brutally honest