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.

 

128x128jbhiller

The associated components stay fully charged and ready to rumble, just like any other solid state device.  Every solid state piece in my rack stays on unless I am leaving for an extended period of time.

I has a similar question, but for a reason other that audio quality. It is specific to McIntosh: since the front panel is illuminated (even when there is no VU), will keeping it always on risk of burning the front green lights?

 

 

@mrskeptic , good point, but there are many here who know a good bit about amp topology, engineering and so on.  

Maybe this site is too subjective for you?  Have you tried AudioScienceReview?  That's a special place over there. $500 Topping amps that measure better than D'Agostino are gospel because of their objective stats. 😏

I may need to restate my original point. While sure, I leave on my DAC, in terms of amplifiers, no solid state amp I’ve never owned takes as long to warm up as my Class D amps. It’s not even close. My A/B amps have taken no more than an hour while D takes days. You don’t even have to play music. Just leave them on.

Good thing each monoblock idles at about 5 watts!

What's funny is how some of these conversations develop on A'gon:

Poster:  I came back home and my system sounds like crap and I don't know why, help!

Me:  Are you using class D amps?

Poster:  How did you know?

 

Best,

 

Erik

You know, Erik, I'm wondering if my NAD M22 would have sounded better if I could've figured out how to disable it's auto standby feature, where it put the amp into semi sleep.  It wasn't supposed to be that hard, but I'm no longer good with tech options. 

My Marantz Ruby is never turned off now.