MQA filter always applied in Aurender A10?

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John from Stereophile mentions about MQA filters being applied to non-mqa files in this review. I am assuming this is not good and should not be done. Does this mean MQA filters are applied to non-mqa files whether the source is files stored on the internal hard disk or its streamed from Spotify or Tidal? Are these filters optional and can be disabled? Has this issue been resolved in test firmwares?

I see Amir's review recommending this product. Does Amir not test these kinds of things?

Aurender A10 network music player/server Measurements | Stereophile.com

Sidebar 3: Measurements I measured the Aurender A10 with my Audio Precision SYS2722 system (see the January 2008 "As We See It"), using the Audio Precision's optical digital outputs, and data stored on the A10's internal hard disk and sourced from a NAS on my network. The serial number of the...

www.stereophile.com

 

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Amir's review of the A10 was quite limited in scope and didn't include measurements that would expose the MQA filter, namely impulse response and Nyquist filter response:

'Review and Measurements of Aurender A10 Streamer'

Dec 12, 2018

This is review and detailed measurements of the Aurender A10 streamer and player. It was kindly loaned to me for brief testing by Gig Harbor audio. The unit retails for USD $5,500. For that, you get a streamer and DAC with 4 TBytes of storage and SSD for caching.

If you are not familiar with Aurender, they are the most common streamer I see at audio shows. In that regard, its price is not a larger percentage of a high-end audio system but of course, significantly higher than the typical desktop products we talk about.

The unit I tested was quite hefty and had pretty high-end fit and...

• amirm
• Replies: 80
• Forum: DACs, Streamers, Servers, Players, Audio Interface

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