Sennheiser HD 660S2 vs. HD 600 and 650: Which is REALLY better?

The other reason why people forgive them is that the sins (besides some brightness in two spots) is subtractive. Means what they do not have, they don’t do. Compare that to some Beyers, AT, Grado, etc. which hit you over the head with unnatural treble. Its fatiguing. The HD-600’s with a good FPGA or R2R DAC and an OTL amp is the cheapest way I know to getting sound of unamplified music correctly - still. The alternate is a refurb HFM HE-6 SE with a SS amp of at least 2 wpc @ 60 Hz, with a good dose of PEQ with the same sort of DAC. Better for rock, bass heavy music for sure. Worse for timbre correctness.

3 Likes