Sonic Frontiers preamp in standby mode


Hey guys, I have a question about Sonic Frontiers Line 1 preamp. Should it be left on in stand by mode at all times? If so, what are the benefits if any - cleaner sound maybe? Or is it just recommended to be left in stand by mode to preserve the tubes. I usually shut it off after listening because I don't like to leave the house with electronics left on but the manual states that it should be left on. My other equipment is Sonic Frontiers Power 1 amp, Musical Fidelity A5 CD player, Shunayata line conditioner, and Vandersteen Quattro speakers with high pass filter (amp & pre-amp are on balanced connection). All the tubes are new and fully broken in.

I would appreciate feedback on this question. It seems that sometimes if the system hasn't been on in a few days I don't get optimum sound until after a few hours of play. When fully warmed up this system sounds very nice.

Thank you,
music lover
jroyka65a6
I have spent a little time the last couple of days reading the archives over on AA. As others have posted here, many do leave their preamps in standby. I have on occasion over the weekends, but do not through the week. Hopefully more members will post and give their experiences.

For those of you that have posted, are you running NOS tubes from the late 50s, early 60s? Are you using current stock tubes?

http://db.audioasylum.com/cgi/search.mpl?forum=tubes&searchtext=+Sonic+Frontiers+L1+Standby+%2C+shorten+tube+life%3F+
Jim

How do you put an SFL-1 in standby mode?   I don’t see anything in the manual about it.   

Could it be that as long as the unit is plugged in it is in standby mode even when the power button is in the off position?

A SFL 1 doesn't have a standby mode.  It has a 45 second mute timer.   The green LED will flash upon the first 45 seconds of warm up, then you hear the relay click and get music.   If the Mute switch is lifted the LED will flash indicating it is muted. 

Going back to the initial post, which refers to standby mode:   Does that mean just leave it on (and maybe engage the mute switch)?