HD 660S2 Smart Control App the standard setter for extended

the standard setter for extended listening is now the standard-setter for extended bass

The reference-grade 42mm transducer with 38mm diaphragm and ultra-light 150-ohm aluminum voice coil delivers exceptional impulse response and smooth sound for which the entire 600-series is renowned

you’ll feel like you’re right in the action—whether it’s your favorite band or an adrenaline pumping video game

Audiophiles know that the best components perform at their peak when nothing stands in their way

When combined with its ultralight chassis and luxurious comfort

HD 660S2 Smart Control App the standard setter for extendedDive deeper into legendary sound. Nothing makes music feel dramatic like powerful bass. The extremely precise yet non fatiguing sound of the HD 660S2 now delivers even more impact with extended sub bass. Our engineers optimized the HD 660S's surround, transducer airflow, and coil to double the sound pressure at the lowest octaves. You can feel the lowest note on the piano (27. 5 Hz) or the bass drum kick (45 60 Hz) as if you were there. The relaxed