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
Hi,if I put in a winged c,in with the sovetek 6h30,would it change the sound of my pre amp for the better. Thanks
For anyone looking to step up from the stock Sovtek whilst keeping their Ref 5SE closer to ARC factory voicing than NOS Tung Sol's I would recommend NOS General Electric 6550.
Thanks,Ill have to try it.Have you tried the 6h30dr.?.The prices seem to be getting very expensive,on ebay.
Hi tsushima1.ive got a winged c and a ge 6550 on the way.It will be interesting to see the difference in sound.
@MisterN, hopefully you managed to source the GE testing to New spec? Should you contract the rolling bug I would also recomend an early 60's solid grey plate, Have Fun .