The VAC 40 head ($1500.00 + shipping) has both the gain and volume preamps featured on the VAC 25 and VAC 23. It has V.A.C. presets of: 40, 30, 20, 9, and 4 watts. Tubes: 6L6GC push-pull pair, 12AX7 preamp (3), and 12AT7 driver. The preamps are selected externally with the included A/B box.  samamp speaker cabinets are available special order. Call for price.