HiFiMan HE-R9 review – Epic sound via Bluetooth, USB or Wired

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


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


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