just received my Superlux HD660 with the replacement velour pads from trio, great seller although sometimes slow with reply. do not worry, he's not running away with your , he's just busy getting more stocks for u.

im not a sensitive listener and can't differentiate those technical terms audiophile equipments. so im writing this based on my impression of the hd660.

the hd660 really looks exactly like the Beyerdynamics DT770 Pro !! The cans are made from plastic and the headbands are constructed from a kind of metal (steel? ) so that kinda makes the overall build quality feels solid. about the sound (for a normal user), the bass is OK and the mids are warm and sweet but the treble is slightly too aggressive for me. the vocal clarity is impressive on this headphone. noise isolation is also great thanks to the closed-cup design. the non-detachable coiled cable is too short. and the stock pleather earpad is the biggest deal breaker, it is very uncomfortable like my old "gaming" headset. immediately changed them to the softer velour pads after 5 minutes of testing.

after close to a week of testing and a weekend with whole day of movie+gaming on the hd660, im getting used to the slightly unforgiving treble. but i also noticed that the clamping force of the hd660 is really strong, even with the soft velour pads. therefore, any new buyers please do yourself a favor and get it together with the velour pads. also i suggest to try to teach some manners into the headband using 3 dictionaries like this



PROS:
- overall solid build quality
- comes with headphone case
- good bass and mids
- vocal clarity is impressive
- very affordable price
- compatible with DT770 headband cushion and earpads

CONS:
- cable is too short and non-detachable
- stock pleather pads are uncomfortable
- treble is too aggressive
- clamping force really strong

This post has been edited by ntw: Apr 7 2014, 11:42 AM

i didnt really try out the sound in the pleather pads because they are too uncomfortable. in the velour pads the HD660 still sound very good to me. but i guess there is a slight difference because of the material in the velour pads that dampens the bass

pictorial pls...... my imagination is bad

u mcgyver the shit out of the earpads!! but what i dont really like about the pleather pads is that they surface is too stiff, nothing with the cushion inside wor..

anyhow, how long did it take to fully burn in n how u do it? i just kept it playing some random playlist whenever im not using...

i do feel that the treble is too sharp, maybe after some burning will feel better

updated my little opinion on the Superlux HD660