hi! since I keep on playing in places where I can't raise the master volume knob above 2-3 on my marshall vba400 all valve head, I am seriously thinking about getting rid of this head (I love the sound.... but at low volumes it's not great...just good....)... I would replace it with a preamp/power amp system... I was thinking about either an ampeg valve preamp or a sansamp rbi... I am also considering that a valve amp is heavy, fragile and expensive to mantain.... I'm still renting this head, but I finally raised enough money to buy it... but that's 1000 euros, for all you americans over 1300 $.... It's a huge sum of money for me, and I don't know if I should buy an amp head I could never run as it should... 400w of valve power are too loud...! what would you do? any advice?