The SVT-7PRO pumps out a ferocious kilowatt of pure Ampeg tone in a compact design that weighs in at just 15lbs. The SVT-7PRO features the same professional features as the other PRO Series heads including a flexible 5-position mid tone control, remote switching FX loop and a sleek onboard variable compressor. The tube preamp boasts a premium JJ 12AX7 that feeds the weight-defying Class-D power section. And at 80-cents a watt, the value is undeniable.