Henry, the preamp has a remote control (and most everything else you could want). My DarTZeel 108 has been absolutely bullet proof- it is dead quiet with no hiss, hums, clicks, or anything else to let you it is "on" or even in your system until the music starts to flow. Best amp I have ever owned by far.
Dartzeel amp lives up to hype
I purchased a fully broken in Dartzeel about a week ago to drive the Von Schweikert VR-7SE. I was concerned about the 100w power rating and was put to ease when I switched it on. Powerful tight bass and the sweetest midrange and delicate highs one could hope for. Transparency is way ahead of all other amps I've had. Definitely lives up to the reviews.