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Hi, I'm evaluating the purchase of a DAC to be coupled with Sennheiser HD 660 S headphones. The price target is 300 € max. At the moment I'm thinking of buying iFi Nano iDSD Black Label. Do you think there is a better choice? I'm looking for a DAC which: Has support for MQA (Tidal); Has a...

Hello! As you may know, the 2020 year marks Sennheiser’s 75th anniversary. While it is an exciting milestone for the brand we cannot help but share your sadness in the cancellation and rescheduling of Head-Fi community events, in addition to other activities we had scheduled around the...

Hello everyone! I was hoping you could help me with some headphone suggestions. I've been looking to upgrade my QH-1339(which is a rebrand of the Beyerdynamic DT770 Pro with a mic). I've had them for about 5 years and I feel like getting something new. I also want something a little more...

Sennheiser HD 660 S The Sennheiser HD 660 S is a new headphone from Sennheiser of the long running and widely praised HD 6xx family of headphones and is posited as an successor to the famed Sennheiser HD 650. The headphone retails at $499.95 USD which is the same MSRP as the HD 650, though...

https://en-us.sennheiser.com/headphones-audiophile-high-end-hd-660-s Price: $499.95 USD Technical Data Impedance - 150 Ω Connector - Stereo jack plug, gold-plated 6.35 mm, unbalanced, 3-pin 4.4 mm, balanced, 5-pin Frequency response - 10 – 41,000 Hz (-10 dB) Sound pressure level (SPL)...