Recommended warm up times?

[Freshercomenovice]

Dear forum users, I use a Little Dot mk II with military valves and my question concerns warm up times. Currently (excuse the pun) I leave the unit on for 30 minutes prior to listening. Is this reasonable, too long or short? What do you think and what do our respected moderators say? Regards, Freshercomenovice.

[DavidZheZhe]

Typically after 15 minutes, you'll have optimal sound and performance!

[Freshercomenovice]

Thankyou David. Your considered advice now means I will get an extra 15 minutes of listening excellence each & every headphone session!