[icediz]

Which phones have better SQ:

Sennheiser PX-100
Sennheiser CX-300

 

[jdimitri]

PX100 easily wins this one based on SQ alone
Problem is, it's quite a bit bigger (but still much smaller than many other headphones) and doesn't isolate at all

 

[Stephen Lau]

Yes I'd also say that PX100 sounds better. It's a bit more clearer and bass not as muddy as the CX300s. The CX300s also has really bad microphonics

 

[Claus-DK]

px100