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Philcollins_sucks t1_j6bo0an wrote on January 29, 2023 at 4:24 AM

Reply to comment by Philcollins_sucks in Top 10 Favorite Headphones by radrod69

Of course it's all subjective but the muted atrocious treble of 660s is mainly the reason. Hd 600 and 650 scale sensationally off of tube amps especially SET amps leaving 660s far far behind. Also 660s is grossly overpriced