@mlapenta Disregarding tubes, almost every piece of equipment which uses electrolytic caps (pretty much everything we use), will take time to 'burn in'/'run in', often in the order of 200/300 hours. This is especilally true of devices which don't run 'hot' when in use, ie (non tubed) DACs. You should never ever turn a SS DAC off, or a SS pre-amp, as they will take days to fully warm up. The owners manual of my old Jeff Rowland Research pre amp said in the manual to never turn it off, as it WILL take in excess of 5 DAYS to warm up before giving its full potential. Nelson Pass, the designer of my Threshold (not a Class A version btw) power amp says the same thing - never turn it off.
But 'burn in' is a different subject to warm up times. This is a definite phenomenon, and anyone who denies it either cannot hear it or just doesn't want to believe it - reverse expectation bias. My current Denafrips Venus 15th sounded dull and lifeless out of the box (after 5hrs of warming up out of the box), but improved markedly over the following 4 weeks, playing Radio Paradise 24/7. A similar thing was noticed with my previous DAC, the Pontus 15th, which replaced my Cambridge Azure 851N. It sounded very disappointing when new, NOT cold, but after several hours of warming up. After a few days it was clearly much superior to the CA device, and after c2 weeks sounded wonderful. As lanx0003 says, it's mainly the film caps that need time.
@abenavraham You clearly have very little between your ears! Maybe your ears are not working correctly?
@nubiann You are extremely nieve if you think manufactures have the time and space to put each and every piece of equipment through a 300hr burn in process! You also seem very confused in your own beliefs - one minute saying it's all rubbish, then saying you use a warm up regime before listening! Make your mind up; which is it?
