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Replacing 6550s with KT 88s

I am currently using Winged C 6550s in my Conrad Johnson LP 70S power amp and am very happy with the performance etc. Some tube sites recommend an upgrade to Genalex Gold Lion KT 88s in place of 6550s. Would love to hear from CJ or ARC owners or others who have experience of this.
Many thanks
Pradeep
128x128sunnyboy1956
rodman99999
6,158 posts
 
If you are after a warmer, tubier presentation; you'll be happy. If you like your sound cleaner/less colored, stick with the Winged 'C' 6550. How old are your 6550's? The comparison(new tubes to older/worn tubes) might not be a fair one.
sunnyboy1956's avatar
sunnyboy1956 OP
424 posts
 
Rodmann99999
Many thanks for your response.The 6550s are due for replacement. Nearly 3+ years. Not sure how many hrs but I guess it would be close to 3000 hrs. I prefer a cleaner sound to a warm, mushy "tubey" sound.
Cheers
Pradeep
rodman99999
6,158 posts
 
Mr P- Kevin Deal(Upscale Audio) sells both of those tubes. His testing, matching and burn-in procedures are second to none. The last set of Winged 'C's, that I purchased from him, lasted me over four years(at hard labor). I've since gone back to the(NOS) GE 6550A(at over five times the cost). I'm hoping that when that supply runs out, the Winged 'C' will still be in production. BTW: I wouldn't call the Genelex, "mushy." Just somewhat warmer than natural. Some systems are a bit threadbare, and can use the added color. Enjoy your music! (http://www.upscaleaudio.com/KT88/)
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