Spectral DMC 30sl

Wait till you get to the 30SS S2. A phono unit is also expected soon

Thanks, I did find the section in the manual that instructs to leave it on. It does run warm, and I replaced the acrylic top with the metal one, should be a better conductor. Otherwise, this is an major upgrade from my DMC 12, no slouch in imaging and clarity. Hoping that Spectral will get back in the phono business again.

I have just a little experience here in Italy in Spectral's preamps (DMC-10, 20 and 30SS) which I heard many many many times in the audio system of my best friend. The only thing I can tell you is that all Spectral preamps do their best if they are plugged "ON" all the time (obviously it can't be recommended when you're out of your home for a few days just for safety and power consumption).
After a long period when they are not plugged in, all models sound a little bit thin and flat; IMHO they need at least one day "ON" before make a critical listening test.
my two cents
Marco

leave it on