When powering up the system, I've been instructed to always turn the amp ON LAST, OFF FIRST
Yes, its absolutely true. Yet you will have much better sound keeping the amp ON all the time.
I have also tube preamp and I have been in your position. Solution for this or any other problem - call Spectron, you always will get the best advise.
I called and the solution is to use your XLR/RCA switch as mute switch. If you use XLR, for example then if you want to turn off your tube preamp then switch Spectron input to RCA - if you don't have interconnect there then you are practically turn the amp off - as far as preamp is concern...and vice-versa
ALL The Best
Rafael
Yes, its absolutely true. Yet you will have much better sound keeping the amp ON all the time.
I have also tube preamp and I have been in your position. Solution for this or any other problem - call Spectron, you always will get the best advise.
I called and the solution is to use your XLR/RCA switch as mute switch. If you use XLR, for example then if you want to turn off your tube preamp then switch Spectron input to RCA - if you don't have interconnect there then you are practically turn the amp off - as far as preamp is concern...and vice-versa
ALL The Best
Rafael