Sennheiser HD 660S Review: Audiophile Headphones for $499

Sennheiser's HD 660S open-back headphones offer impressive performance, but you'll need to invest in a good audio source to get the most of out them.

Sennheiser HD 660S2 Dynamic Headphones - Magnificent Musicality — Audiophile Heaven

Sennheiser HD 660 S Review

Sennheiser HD 660S Review: Audiophile Headphones for $499

Sennheiser HD 660S Reference Headphones

Sennheiser HD660s Review - A legend at a premium –

Sennheiser HD 660S2 Review: A New Reference For Headphone Fans - HIFI Trends

Sennheiser HD 660S2 Over-ear Headphones Review

Simply beautiful sound, and the lengths Sennheiser will go to achieve it that is the story of the IE 600. These in-ear devices not only reproduce the detail and emotion of a recording, they transcend it. Because each earphone is a masterpiece. From the hand-finished amorphous metal housing to high-end audio components developed and made by Sennheiser, everything is manufactured to the strictest tolerances.

Sennheiser IE 600 in-Ear Audiophile Headphones - TrueResponse Transducers for Exquisitely Neutral Sound, Detachable Cable with Flexible Ear Hooks

Sennheiser Consumer Audio HD 660 S - HiRes Audiophile Open Back Headphone

Sennheiser HD 660 S Review

Natural, relaxed, high-fidelity sound with extra sub bass: Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response and

Sennheiser Consumer Audio HD 660S2 - Wired Audiophile Stereo Headphones with Deep Sub Bass, Optimized Surround, Transducer Airflow, Vented Magnet