the difference has been stated for the mk2 but no comment on sq here's the article link :
and here an unboxing video
Edited by slim shady - 11/9/13 at 12:02pm
From the Sony Asia website they stated that the air vents on the MK2 are enlarged which apparently improves bass response in comparison to the original. Other than some cable additions there's no other changes as far as I'm aware.
Here's the site: http://www.sony-asia.com/product/mdr-1rmk2
Also for any Australians on Headi fi, they're available to buy from th Sony Australia website
Your impressions are identical to mine, except for the lack of bass quantity.
I don't expect much change to the sound signature. I expect a small bass boost and tighter, more extended bass. Thats really it.
Wait... what ? Where did you get the replaceable pad for 1r ? can you give me a pic of your 1r ?
"Engineered to perfection, Sony's High Definition driver units provide a wideband audio performance range from 4Hz to an impressive 80,000Hz. As a result, you'll enjoy powerful lows and extended ultra highs." LOL
I really hope the MK2 has more treble presence than the original, along with more sub bass. The originals were way too dark up top.