Why my system becomes dull after sometime?

[EvilTed]

Electronics, especially solid state sound and perform better if left on 24/7.

They will last longer too.

 

Tubes sound better turned on the morning you are going to listen and to my ears with my system, only get amazing after 1 hour or so of use. Some people say that heater voltages fluctuate a lot within the first hour, so I'm not sure.

 

Also get yourself a digital thermometer which reads with a laser.

That way you can measure the temps when things suck and then check the specs.

I wouldn't place a preamp on top of a power amp, if I could help it.

Too much EMI.

 

 

[EvilTed]

@sbenyo

 

Do you have vertical space?

You could try adding some anti-vibration pads between the pre and power, which will lift them up a bit.

Another solution which works very well for cooling between components is one of these.

I own one and used in a previous incarnation when space limited and had heat issues.

 

https://www.amazon.com/gp/product/B078PQJSRY/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

 

This model that exhausts to the front is quieter then the ones that exhaust to the rear.

This model can be set to a pretty low fan level and still cool effectively.

I could never hear it in place while music was playing.

 

I'd get a thermometer first and check the temperatures.

They are around $20 on Amazon.