Conclusion: We’re completely smitten with the Sennheiser MM 500-X. Although their $330 retail price could put them beyond reach for some, their value is unquestionably off the charts. Their unrivaled combination of superior sound, excellent comfort and overall fit and finish puts them firmly at the top of their price class and makes them highly competitive with headphones costing much, much more.
Pros: Supremely well-detailed and highly engaging sound, Wonderfully articulate bass; even better treble, Excellent fit, comfort and all-around build quality, Killer value, Fine assortment of accessories
Cons: Noise isolation only average, Price is starting to creep up