NAD C658 "low output"

Adam Miatke

• October 25, 2023 13:59

So I've owned this device for a couple of years and in general it has been pretty solid, however...there are times when the volume being output seems lower than normal and everything seems very weak ( low bass, quiet midrange etc ). For example, if my normal listening volume is 25, it will occasionally become difficult to hear and needs to be upped to about 40. I've recently put the 4.0.2 update on and it went from working great back to the low output again. I'm never sure if the issue is related to firmware or something else. I've done powercycles, factory resets, rerun the upgrades ..and SOMETIMES it switches back to the proper volume. Had anyone else experienced this issue before? it's such a downer when it happens as I simply can't pinpoint the cause

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• Official comment

  

  Tony W.

  Product Support Manager

  • October 25, 2023 18:08

  Please continue working directly with support@nadelectronics.com with your NAD C658 - that being said, I checked in with our good friends down the hall and they are having a hard time locating a support request using the e-mail you have registered here... so I have taken the liberty of asking them to reach out to you.
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  Bodi

  • October 25, 2023 14:01

  After 4.0 my volume limits were back to default and I also had to put up the volume much higher than normal. Maybe that's the case for you too?

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  Adam Miatke

  • October 25, 2023 14:08

  Hmmm, I mean it's possible, but this has been an ongoing issue before the volume limiter function was implemented...I tried sending NAD a support request but that was pretty useless...

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  Adam Miatke

  • October 28, 2023 10:11

  I ended up solving this issue.  Here's what I did:

   - Removed HDM-2 MDC card ( no longer using HDMI ARC because it's no good )

   - Transferred existing Dirac file to C658

   - Factory reset BluOS and MCU ( wipes out Dirac settings )

   - Uninstalled / Reinstalled BluOS App on phone ( because it never finds the device again otherwise )

  As for why this worked I will never know, however these are the steps I took and it's now working as I would expect it too.  As for why the firmware upgrade degrades the quality of the output upon installation, again...I'll never know. Unfortunately this means I have an unused MDC card and I won't be using Dirac again so it's a bit of a waste but it's the only way I can guarantee that no changes are made to the system to keep it working the way it's meant to.

  I think moving to a different unit will be how I manage these issues going forward, too much software getting in the way of the hardware. too many variables that can go wrong and no one seems to know why.

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