# Sennheiser HE 1 - Official Thread

**URL:** <https://forum.headphones.com/t/sennheiser-he-1-official-thread/400>\
**Category:** Official Headphone Model Discussion\
**Tags:** sennheiser\
**Created:** [May 1, 2018, 11:03pm UTC](https://forum.headphones.com/t/sennheiser-he-1-official-thread/400 "2018-05-01T23:03:16Z")\
**Posts on this page:** 1\
**Showing post:** 26

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**Author:** ![Resolve](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.headphones.com/resolve/32/51647_2.png) [@Resolve](https://forum.headphones.com/u/Resolve)\
**Post date:** [July 23, 2023, 5:54pm UTC](https://forum.headphones.com/t/sennheiser-he-1-official-thread/400/26 "2023-07-23T17:54:03Z")

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Here are the Sennheiser HE-1 frequency response measurements done on the B&K 5128 and GRAS 43AG

[![](https://us1.discourse-cdn.com/flex016/uploads/headphones/original/3X/9/b/9be8c65dc6c433ac77fe035f89b6aaece66a02d3.jpeg "We measured the Sennheiser HE 1 $60,0000 headphone system") ](https://www.youtube.com/watch?v=zVwVd-1ytIk)

 ![Sennheiser HE-1 5128](https://us1.discourse-cdn.com/flex016/uploads/headphones/original/3X/6/5/65f04863aafc53443e14839eaf98856a5c58e834.jpeg)

 ![Sennheiser HE-1 Crossfeed](https://us1.discourse-cdn.com/flex016/uploads/headphones/original/3X/6/f/6f87b6385734ac8892f0617d9b49a5985de37327.jpeg)

 ![Sennheiser HE-1 GRAS](https://us1.discourse-cdn.com/flex016/uploads/headphones/original/3X/3/4/34f41477d570af4ad71b8ac38919accb5b80a01c.jpeg)

 ![Sennheiser HE-1 vs Harman](https://us1.discourse-cdn.com/flex016/uploads/headphones/original/3X/a/c/acf2afe97a857598fa853a4a44e14812dc6f219f.jpeg)

 ![Sennheiser HE-1 Channel Matching](https://us1.discourse-cdn.com/flex016/uploads/headphones/original/3X/0/b/0babab3d2c548320ad8732dcbea5cfa24d7df59b.jpeg)

I’ll post harmonic distortion measurements soon as well.

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_[View the full topic](https://forum.headphones.com/t/sennheiser-he-1-official-thread/400)._