2. amps-preamps
  3. 127429-89202

Warm-up time for amps and preamps

How long does it take for your system to sound good from a cold start?
I try to keep my system on most of the time.  But occasionally I turn it off and it sounds like crap for a good half-hour to an hour.
i know there has been discussion here on the virtue of leaving tube preamps on all the time.
But my solid state amp (modified NuForce mono blocks) technician advises turning even them off occasionally.
128x128rvpiano

Showing 7 responses by rvpiano

rvpiano's avatar
rvpiano OP
2,465 posts
 
I find that the phono section of my pre-amp is warmed up only by playing records
at fairly loud volume.  Just keeping the pre-amp on for a period of time doesn't do the trick.
rvpiano's avatar
rvpiano OP
2,465 posts
 
I have a class D amp.  The NuForce technician told me something very interesting: He said it's not good for a switching amp to be on without being connected to a running pre-amp with a source playing.  Therefore, when warming it up I have the tuner playing at very low volume.
i have a tube pre-amp (Conrad-Johnson) which also benefits from the warm-up.


rvpiano's avatar
rvpiano OP
2,465 posts
 
 I know I contradicted myself in the last post.  When I got to think of it, the phono section of the pre-amp required separate warm-up.
Sorry!


rvpiano's avatar
rvpiano OP
2,465 posts
 
The original NuForce is not in business, but there exists a technician who worked for them who is in business (called TDSS) repairing and upgrading NuForce equipment.

rvpiano's avatar
rvpiano OP
2,465 posts
 
In response to ghosthouse, the psycho-acoustic effect is enhanced even more with a glass of Scotch.

rvpiano's avatar
rvpiano OP
2,465 posts
 
There are many "authoritative" answers here.
i wonder which ones are right.

rvpiano's avatar
rvpiano OP
2,465 posts
 
Thank you, phusis!

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