Welcome to my review of the HiFiMan HE-R9 dynamic driver headphone from HiFiMan, which currently are on sale in China for RMB 4,000.

The Key Specs / Features

• Frequency Response 15kz to 35kHz
• Sensitivity 100db
• Resistance 32 ohms
• Weight 328g
• Balanced / Unbalanced
• In the box – HiFiMan R2R Bluetooth USB DAC, USB cable, headphone cable, HE-R9, Owners Guide

Audio tracks used for the review.

• Roxy Music – True to Life (Remastered)
• Leonard Cohen – In My Secret Life
• Massive Attack – Unfinished Sympathy (2012 Mix Master)
• Eric Clapton – Layla (Acoustic Live at MTV Unplugged)
• Axel F – From Beverly Hills Cop
• Natalie Merchant – Ophelia
• CeeLo Green – Bright Lights Bigger City
• Stevie Ray Vaughan – Tin Pan Alley
• K.D. Lang – Constant Craving
• Nigel Kennedy – The New Four Seasons
• Hans Zimmer – Mountains

Video Review

Video review index –

00:00 Intro 
01:05 Specs
01:52 In the Box / How to pair the R2R DAC
03:40 Owners Guide and detailed info on the headphones
04:47 R2R DAC How To & Info
06:18 Close up of HE-R9
06:53 Sound Quality Bluetooth, USB and Analogue and versus Sony WH-1000XM4
11:00 Summary & Comparisons

Conclusion

An exceptional headphone from HiFiMan. Flexible input options either using bluetooth, USB or wired. Highly Recommended 9.5/10.

Useful Links

HiFiMan website – https://hifiman.com