Power Break

Since I don't really get many chances to crank my tube head up to it's potential, I was thinking about a power break to get better tube tone at lower volumes. The only one I know of is the one made my Marshall and is rediculously expensive! :eek: Are these things worth there cost and can you really hear a big difference? Do you know of any other brands that arent so expensive? Or, do I just have a case of wishfull thinking :rolleyes:

Apparently, the Marshall one isn't the best or even close...

http://www.amptone.com/#poweratten