- Aug 6, 2015
Hi i have bought superlux hd669.I found the sound quality not upto the mark i think they are fake but when i googled fake superlux hd 669 i was not able to see any fake models . I have burned them for 40 hours but still they sound very creepy. Any reccomandation to enhance the sound quality i mainly used it on my laptop and phone. Should i return them?