Tech Power Up have been taking a look at the Sennheiser HD 660 S headphones, and here's a snippet from their review:\n\n[QUOTE]This review will focus on the recently launched Sennheiser HD 660 S, essentially a spiritual successor to the HD 600 and the literal successor to the HD 650. If you venture on to Sennheiser's official website, you'll find the HD 660 S in the "High-End Headphones" category. That might scare you into thinking that there's no chance you'll ever be able to afford it. However, things aren't as grim since the HD 660 S is priced at 9/€499. It's a hefty sum of money, but if the HD 660 S performs even better than its older siblings, then it too can be declared as "endgame-worthy", and I'll have no problem recommending it wholeheartedly. Heck, I'll even urge you to try to save up for it![/QUOTE]\n\n[ATTACH=full]2459[/ATTACH] \n\nRead more [URL='https://www.techpowerup.com/reviews/Sennheiser/HD_660_S/']here[/URL].