Onkyo HF Player + Resonessence Labs Herus = iOS DSD


Onkyo’s HF Player is a free digital audio app capable of hi-res audio playback – PCM up to 24bit/192kHz and DSD – but only if you spill AU$10.49 on the ‘HD Player Pack’ in-app upgrade. (If not, the Onkyo HF player still satisfies with some serious EQ-ing functionality.)

And then I saw this in the Onkyo press release: “DSD-IFF and DSF formats are converted to PCM before playback”.  Sigh. Just like the Astell&Kern players then…

…not so fast! The Onkyo app sports an option for DoP DSD output. If you have a DoP-compliant DAC that can talk to an iPhone, you’re in native DSD business.


With the Resonessence Labs Herus (CA$350) being able to a) extract digital audio via a Lightning connected iPhone 5/5S/5C and b) decode DSD over DoP, the Onkyo app paves the way for native, around-town DSD playback on yr iPhone.  Great news for Shelby Lynne fans!

The small print reveals the Onkyo HF Player app is optimised for iPhone 5.  It’ll run on iOS 6 or iOS 7. More info can be found in the Onkyo press release here.

Further information: Onkyo | Resonessence Labs | Addicted To Audio

Written by John H. Darko

John lives in Sydney, Australia where he derives an income from the ad revenues of DAR. John is also an occasional staff writer for Stereophile, 6moons and TONEAudio.

Twitter: DarkoAudio
Instagram: DarkoAudio
Facebook: DAR


Leave a Reply
  1. Herus confirmed as working with CCK on iPhone 4 and with OTG cable on Samsung Galaxy S3. No dice though on a Google Nexus 5.

  2. good day,
    as per the release notes:

    Audio with a sampling rate exceeding 88.2 kHz output via the iPod touch/iPhone/iPad headphone connection is downsampled to 44.1 kHz.

    thus, if ALAC is 88.2 or less,
    no downsampling,
    thank you,