Sennheiser HMDC 27

Premium headsets from Sennheiser for a premium price. Positives first, sound quality of the dynamic microphone is excellent suitable for high end broadcasting. Headphones sound quality is more than enough for it's purpose. Passive attenuation of ambient noise is above average, better than DT-797 or DT109. Active noise cancelling is really just a gimmick and doesn't do much. ANC is nowhere near even consumer products like Apple AirPods or Sony WH-1000XM3. Headphones are really light weight and have a lot of articulated joints.
My biggest issue is the build quality. They are entirely plastic with a lot of tiny joints and they don't feel very beefy, especially compared to Bayerdynamic headphones that are entirely metal. Maybe these will last just fine, but I am skeptical and only time will tell. Hopefully they last at least few years before they fell apart. Over all I am not very impressed with this product, especially for the price.

The HMDC 27 is an excellent product; although quite expensive, the amazing cardioid mic quality in any type of environment allows you to use it everywhere. Living in a quite noisy apartment due to poorly soundproofed windows, the closed over-ear headphones greatly reduced this inconvenience, and people listening to me could barely hear cars any more (just slight background noise, barely noticeable).

However, I had to remove one star for the headphones sound. You should not expect audiophile levels of listening with this product. Although all levels are very clear (especially the bass), I had to play with my mixer a little bit to have both ears at the same level -left ear was a bit too low. This issue is probably due to the mic and cable being on the left side as well, causing it to be a bit unbalanced.

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HMD 27 VS HMDC 27:

HMDC version comes with XLR & jack cable, HMD does NOT. HMDC also has an additional noise cancel switch that can be useful. If you do not already own cables, get the HMDC version.

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Overall, excellent product for the price tag, would definitely recommend for broadcasters, radio hosts or streamers.

I recently purchased the Sennheiser HMDC 27 headphones and I must say, I am extremely impressed with their performance. The sound quality is exceptional,
with crystal clear clarity and a well-balanced frequency response. The noise-cancelling feature works wonders in blocking out external noise, even in loud environments
The build quality of these headphones is also top-notch, with a sturdy and durable design that feels like it can withstand daily use. The comfort level is also
noteworthy, with soft earpads and a comfortable headband that doesn't cause discomfort even after extended use.
JUST a challenge for free ear to have some noise
Overall, I am very satisfied with my purchase of the Sennheiser HMDC 27 headphones and would highly recommend them to anyone in need of high-quality
headphones for professional use. They are definitely worth the investment!