Our Verdict Open, balanced and controlled - these cans deliver the goods For Controlled, well-balanced sound plenty of bass-weight Against A tad anti-social if you commute Reviewed on 3rd December 2009 The MM 60s look like Sennheiser's PX 100s with a mic/control unit attached. That's how they sound, too: open, balanced, controlled and detailed, with plenty of bass weight and depth. They're open-backed, so a little anti-social on the train or bus, but if that's not how you commute, their all-round listenability makes them an easy recommendation. The presence of Grado's iGrados means the PX 100s are rated at four stars, but Grado doesn't make 'phones with built-in mics, so we're happy to award the MM 60s the full five. See all our headphone Best Buys More after the break Follow whathifi.om on Twitter Related News Denon's AH-C621R in-ear headphones launch next month Tue, 28 Mar 2017, 11:02am The best What Hi-Fi? deals of the week Fri, 24 Mar 2017, 02:26pm Headphones catch fire mid-flight, injuring airline passenger Wed, 15 Mar 2017, 04:26pm The best headphone deals - in-ear, over-ear, wireless and more Mon, 06 Mar 2017, 04:44pm The 10 most popular reviews on What Hi-Fi? Wed, 01 Mar 2017, 03:56pm Headphones MM60 Sennheiser Stay on top of your sound with What Hi-Fi? in your inbox every week Thank you for registering for our Newsletter We will send you relevant emails and updates.