Harley Benton Tube5 - Cheapest Valve Amp I've Tried October 04, 2020 / Elmo Karjalainen This thing is seriously affordable. This amp costs only 140€ ($150ish). It's a dirt cheap valve or tube amp. And it's amazing. It's the Harley Benton Tube5 (sold in the US under the name Stage ... 0 Likes