I shared these observations with a few of you, but I figured I would post them in this thread as well…
After 2 weeks with the RNHP, I have noticed that:
The RNHP does mids and vocals better. They sounded rather distant when I A/B with the SP200 and there was no detail or separation, just a wall of sound type of vocals from the SP200.
The bass was better controlled and extended on RNHP. The RNHP may have a slightly more intimate (narrower) soundstage compared to the SP200, but it is a more accurate representation of reality…thus making the SP200’s representation of space sound unnatural.
Imaging and space vertically…forget it…RNHP actually does vertical imaging and does it really well.
The SP200 can’t do vertical imaging, if at all. The soundstage perimeter in conjuction with your ears sounds like you are wearing a 1/2 meter by 5 meter skinny as hell rectangle over your head and ears. Basically, the scale of the soundstage doesn’t accurately reflect the actual shape of the soundstage (horizontally). Things sound out of focus in relation to the space it occupies.
The SP200 also has grainy sounding upper-mids and treble in comparison to the RNHP…much more harsh and, well…forced would be the word that I would use to describe it.
If I were to make an analogy…the SP200 would be the headphone equivalent of the Beyerdynamic DT 770. Powerful, affordable, and sounds great if you haven’t heard anything better. Once you have, you notice everything you have been missing.
If you don’t notice the numerous differences, consider yourself lucky…you should return the RNHP, keep your THX amp and never have to worry about ugrading amplifiers ever again in your life…because if you don’t hear the difference from the SP200 to the RNHP…you unequivocally will not notice a difference on any upgrades further up the scale in price. Keep your THX, be happy, enjoy the music and your wallet being heavier.
The best thing that any THX amp has going for it is price, power, low noise floor, balanced output, and maybe a slightly wider horizontal soundstage in comparison to the RNHP.