Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

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RE: Midrange suckout

Posted by PAR on December 9, 2016 at 06:03:16

In Reply to: Midrange suckout posted by volunteer on December 7, 2016 at 11:48:49:

I think that we can rule our any problem with the digital sections of the player. In the digital realm there is no bass, middle, treble or central image. Just data. It will either work or not.

So the fault must lie in the analogue output stage or later in the chain.

I am intrigued by your description of the problem which combines a loss of frequencies in the midrange with a loss of images mixed to the centre. Sounds like some kind of phase error between left and right channels although that usually leads to a reduction in perceived bass frequencies too. I wonder if the bass is actually as good as it has been before? Are you turning up the amp to try to compensate, perhaps without realising you are doing this as you just think that you have chosen the "right" level?

So the problem is analogue not digital. It could be the output stage, connections or the input on the preamp or integrated amp.

Have you another source that you can plug into the same amplifier input? Have you another amp it can be plugged into? Can you substitute another cable? This will help track the fault down. I am assuming that the speakers are functioning on other source material as expected. You haven't recently rewired the speaker connections have you? If so have you checked for correct phasing?

Someone has suggested cleaning out your ears. Always good advice if done in a recommended fashion ( that doesn't include the use of cotton buds due to the risk of damaging your eardrums or, at best, impacting the wax instead of removing it). However if your ears are so clogged that you have trouble with hearing the midrange then you will also hear no treble at all. I therefore don't think that is the cause. There can be other issues affecting hearing obviously but if you are happy on a day to day basis in real life e.g. you can hear normal conversations OK then within the terms of your description of the problem there would seem little wrong in that area.

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