Roon & MQA compatibility

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  • Official comment

    Hi Paul

    Bluesound's latest release of BluOS 2.12.x includes support for external MQA DACs. Here's how; https://support.bluesound.com/hc/en-us/articles/115006191908

     

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    Paul kraft

    Thanks for your response, and info Tony.

    What I am referring to is slightly different than what is detailed in your link.

    This is what is occurring:  When I play an MQA file on my NAD M12 or M32, the sampling rate displayed will be that of the fully unfolded signal, at 96K or even 192k.  And the sound quality is great.

    When I send the same tracks to an M12 or M32 via Roon, however, the files no NOT get unfolded.  The displayed sampling rate is 48k and sound quality takes a hit.

    I have (potentially incorrectly) assumed the same behavior exists within Node2, Vaults, etc, but I have not actually conducted a listening test yet.

     

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  • Hi Paul

    Bluesound Players are fully encapsulated end to end MQA solutions and actually are what MQA's vision is as being able to verify the file through every step of processing. 

    The M32 is not an MQA certified DAC so the M12 must limit unfolding at 96K. This is why the very same BluOS MDC in a C368 or C388 will have a complete MQA playback of 192Khz.

    As for Roon and MQA, you are best to speak with RoonLab's support team.

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    Paul kraft

    Huh.

    So both the M12 and M32 will display a full 192K sampling rate when an MQA file (sent by the BlueOS app) with that original sampling rate is played.

    Does this not indicate a full unfold is occurring?  (and not being limited to 96k)

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    Tony W. - Product Support Manager

    Hi Paul

    Regarding how the M32 works when connected to the M12; your best bet is to contact our partners at NAD as they can explain it far better than I can (and correct me if I am mistaken). Simply e-mail them; support@nadelectronics.com.

    Bob and his team are great and will get you pointed in the right direction.

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    Paul kraft

    Will do.  Thank you for your input!

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