Sennheiser HD 660S2 audiophile headphones discounted to $424.34

Save $14.77 on this price drop.

Open-back headphones deliver a soundstage that closed-back designs simply cannot match, and the Sennheiser HD 660S2 is one of the most refined options in this category. Sennheiser HD 660S2 - Audiophile Open-Back Over drops to $424.34 - save $14.77.

This discount brings it below its 30-day average, making it one of the better price points we have tracked recently.

THE DEAL

Sennheiser HD 660S2 - Audiophile Open-Back Over

$424.34 (was $439.11) - Save $14.77 (3% off)

Where: Amazon

Expires: No end date listed

Get This Deal

For just $424.34, below its 30-day average of $439.11. The 90-day average sits at $439.21 and the 180-day average at $441.83, so this is a genuine dip below the normal pricing range for these headphones.

If you have been tracking this model, the current price is worth a close look.

What You're Getting

The HD 660S2 delivers audiophile-grade open-back sound with a spacious soundstage that works well for both critical listening and long sessions. Key specs include:

- 42mm transducers with ultra-light aluminum voice coils for detailed highs, rich mids, and controlled deep bass

- Extended low-end performance covering piano lows from 27.5 Hz to bass drums at 45-60 Hz with clarity

- Open-back design with breathable, plush ear cushions built for fatigueless listening over hours

- Premium build quality, crafted in Germany and Ireland for durability

These wired over-ear headphones work with PC, music systems, gaming setups, and podcasting gear.

Who This Is For

Best for: audiophiles who want Sennheiser's signature neutral-warm tuning without jumping to the $1,500+ reference models. Also a strong fit for gamers who prioritize positional audio and extended wear comfort over flashy RGB features.

If you primarily listen to bass-heavy genres and prefer closed-back isolation, a different design would serve you better.

Final Verdict

The $424.34 price undercuts the typical going rate by roughly $15 and lands below the average of the last six months. If you need open-back headphones with precise imaging and German engineering. This is the price point to act on.