I'm keeping my Quick Silver V-4 mono blocks! I have them connected to a Quick Silver preamp , a Lynn Sondac twelve turntable with a Grado Platinum pickup, a Metromome Valved CD player, and Totem Manitou Speakers with custom 100 lbs. stands with Audioquest Midnight 8" leads and all Emerald Audioquest interconnects for the rest of the equipment. It sounds from very cool to great warmth and I interchange matched sets of EL-34's with similar matched sets of KT -88's, all of my tubes are either Tesla or RCA, depending on their function, to vary the sound according to my mood. All the stuffs old but it's gold!!!!!