I got these when they first came out in Japan.
Definitely worth the money if you enjoy electronic (high frequency clarity)
Reserved bass, not overwhelming, but you do feel them.
Awesome design adjustable ear cups
Comfy leather headrest
Best to get portable DAC than connecting to the phone /music player (they work with any portable device w/o amp, but for the sound quality)
It is still heavy compared to thin headphones, so I'd say maybe 2 hours w/o getting uncomfortable.
You can also use them as small speaker
Just flip it sideways and crank up the volume
Still good sound Not like other tin-can cheap portable speakers
charzardI don't have Sennheiser 598cs, but RP-HD10 is Panasonic's first high-res headphones.
New technology (New driver materials(100s of layers), anti-vibration structure frame, horizontal sliding mechanism for earcups) worth more to me at least.
Sennheiser do make awesome headphones for their HD series, but I think 598Cs is more budget oriented.
Probably cheaper materials and construction.
Regarding sound quality, HD10 leaves mid-range out a bit...might be able to EQ it though.
Sennheiser is renowned for their mid-range, so it all depends which sound you prefer.
It is still heavy compared to thin headphones, so I'd say maybe 2 hours w/o getting uncomfortable.
You can also use them as small speaker Just flip it sideways and crank up the volume Still good sound Not like other tin-can cheap portable speakers