Leaving my Threshold 4000 on 24/7?

I have a Threshold 4000. Fairly recent purchase.
is it ok to leave it on 24/7 while turning off on the few occasions when I’m away from home for extended periods of time?

I have a Furman power conditioner and surge protector.
ive read an article about a 400a saying it can improve sonics with leaving a class A amp on.
I have a Threshold Fet2 preamp.

I’m curious if there is any articles or documents from Nelson himself on this topic?
I know first hand the stasis can idle and stay powered on with no issue what so ever. My fathers has been on for 4-5 years only turning off on few and far between occasions.
 
no need for that

not being able to wait 30min to get it to proper temp, being spoiled that sound isnogood and musicisbad in these 30mins ......... that's simply damn egocentrtic

people are having real problems, wasting energy just because you can pay for it is ........ egocentric

Nelson himself is not actually taking care to switch preamp Off, but he's really taking care to switch amps Off
 
Hi,
I don't know about power amplifiers always on, but i know of recording consoles kept this way.

The ones i had to take care of which seen those practice were usually the one who suffered the most.

Psu had to be recapped more often, they seen more maintenance than the ones which were put offline on a daily basis ( average on same series from same manufacturers).

The nature of issues/failures were different too ( with the ones which seen on/off cycle it happened the inrush currents at start could induce failure( BIG psu on those things), the one always on usually literall 'falls into pieces' ( electronics components dies) after some years of exploitations, the others much less...).

I would first check the capacitors rating about temperature before attempting. All capacitors, not only the one on psu... heat is components longlife ennemy.
 
Very interesting a great points.
I appreciate the feed back. And will keep that in mind when my amp come back from repair.
not understanding Class A doesn’t idle like A/B I’m humbled.
growing up with Threshold gear I finally got the opportunity to own one myself.
I’ll be sure to take better care of my amp once repaired.
 
Fortunately, modern capacitors last much longer than the old components from 20 years ago. Having worked with a reliability engineer in my old profession, I learned that the best way to ensure long term reliability of electrolytic capacitors is to de-rate their voltage to 200% of what is expected in the circuit. Using appropriate temperature ratings is good as well, but even the 85 °C components are fine inside the amps that we like to build here. The voltage rating should be 40V or 50V for the typical +/– 24V rails.
You can get away with 35V rating, but then maybe you should put your amps on a timer.
 
At the risk of sounding political, think how much of North America, Scandinavia, and Russia would have been inhabitable without central heating, which is an enormous expenditure of fossil fuel.

Don't add to the global warming if you can avoid it, keep wasteful spending down.
The planet will thank you.