Emotive Bass and Powerful Range - The HD 660S2 from Sennheiser
From Sennheiser Press Release: Sennheiser's updated HD 660S2 expands the capabilities of the 600-series family, the longstanding benchmark for high-performance audiophile headphones. Sennheiser responded to the hi-fi community's feedback, crafting a headphone that skillfully balances reference-level...