2. amps-preamps
  3. 174476-18279

What Would Be the Reasoning Behind Leaving Class D Amps On?

I think my Marantz Ruby integrated sounds better if it is just permanently left on.  I'm a bit of a tubehead, but I've had 2 other Class D amps and I recall them sounding better left on. 

I've seen a handful of manufacturers that even recommend their Class D amps be left on--e.g. PS Audio, etc. 

In addition to the potential improvement in sound quality, I suppose keeping caps and things on might be easier on them too.

Do you agree?  Do you know why this may be true or at least the theory behind it?  

Thank you in advance!  I'm super curious about this stuff.

 

jbhiller

Showing 2 responses by testrun

testrun
250 posts
 

I should clarify.  My amps are always on.  I implied they go into stand-by mode but that is not true for the amps.  It is true for my DAC and Preamp if / when I power down using the front switch.  The DAC never gets powered down and the Preamp when I'm not listening.

testrun
250 posts
 

It seems like most if not all recently designed equipment have a main power switch on the back with a power switch on the front that puts the unit in stand-by mode.  I’m not a double E but have to believe there is a good reason for this.  I have a class D and it doesn’t have an on/off switch on the front so I leave on most of the time.  I do tend to turn everything off when leaving for a week or two.  I’ve not noticed a significant change in sound quality either way.  I just trust the designers.  

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