If your amps and preamp are SS leave them on 24/7.
I have Lamm M1.1's amps and, although they are mostly SS (only one tube) I turn them off because they draw a great amount of electricity even at idle and they also run very hot! I always turn them off first and I hear a pop coming from the speakers,but is normal:it is caused by the condensers releasing the current they accumulated during the operate mode:infact I noticed that if the amps have been on for a short time (e.g. less that 1 hour) the pop turns out to be not so loud.Finally, never turn off digital sources!! Hope it helps.
I have Lamm M1.1's amps and, although they are mostly SS (only one tube) I turn them off because they draw a great amount of electricity even at idle and they also run very hot! I always turn them off first and I hear a pop coming from the speakers,but is normal:it is caused by the condensers releasing the current they accumulated during the operate mode:infact I noticed that if the amps have been on for a short time (e.g. less that 1 hour) the pop turns out to be not so loud.Finally, never turn off digital sources!! Hope it helps.