stickman..i recently tried the 'genalex' 6922 tubes in my preamp and really liked what i heard ..but...i had an acute ground loop issue with them and replaced them .i did like the sound...as for the ' tube life ' issue...i recently bought a pair of the new sophia electric 'royal princess ' 300B tubes for my amps and even if they only lasted 500 hrs i would still buy them again due to their superb sound...hopefully they will last alot longer..
