winged c 6550c is not good for ref 5se??


I ordered 3 of svetlanan SED winged C 6550c from 'Upscale audio' last week and it was not shipped until today, so i call them to find out what is going on here.
They told me they didnt send it because " This tube is not going to work well with your audio research amp and it will failed almost every time".
Is it right?
brandon1103
Jtimothya..thanks for letting know your point of view.Ill have a little play with the 6550 just to know.
Hi,Tsushima1,the ge and the winged c sound good thanks.They seem smoother on my older recordings ,which is nice.Have you tried the tungsol black plate.1950s
Hi veerapaneni,In my system the GE 6550a sounds the best.On excellent recordings,the sovetek is great,but can sound thin on some music.The winged c is a good tube,i can understand why some people like this tube.On older cds,the GE comes into its own with,tone,good bass,air,soundstage,etc.After xmas,ill have to try a tung sol black plate.