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JRGuitarGuy 19th May 2013 05:35 AM

6550s
 
Now I'm not bashing them at all I love them for their monster extended low end and extended highs but where they sound different vs KT88s is the mids 6550s have a "graininess" I really don't like as much while the KT88s are smoother in the mids. Opinions? What do you guys think?

JRGuitarGuy 19th May 2013 05:37 AM

And honestly I don't hear that same graininess in other tubes types the GE6550As and the Tungsols have it though, Its unique to the 6550 sound I think at least though.

JRGuitarGuy 19th May 2013 05:46 AM

They sound more "forward" too obviously, kt88s sound/feel more subtle/laid back but I think the kt88 mid range is far superior and much more musical and there is something about kt88 harmonics that I like more than 6550s. You could sum up 6550s as big 6l6 with extended highs/lows but a 6l6 doesn't have the grainy thing going on to me. Maybe I need to get me/try some kt66s lol always thought they had a interesting mid range unlike anything else too.

JRGuitarGuy 19th May 2013 05:49 AM

Another thing that is interesting is when you run them at lower voltages, they sound a lot different obviously.

JRGuitarGuy 19th May 2013 05:54 AM

Just really curious and trying to figure out how other people hear **** lol

AJT 19th May 2013 06:47 AM

is this for a guitar amp?

JRGuitarGuy 19th May 2013 06:54 AM

Yeah

JRGuitarGuy 19th May 2013 08:37 AM

Why do you ask Tony? Isn't the general idea/knowledge that the KT88 really was and had a more Hi-fi use/purpose while the 6550 was just derived from other stuff pretty much. I'm just saying not everyone hears the same things you know lol

multi 19th May 2013 09:01 AM

Are any of the KT88's real KT88's; I read the all current production KT88's and 6550;s are the same??
Phil

JRGuitarGuy 19th May 2013 09:15 AM

no they are not the same at all, the Chinese/shuguangs are a kt88 for sure as well as the kt66s, some of the Russian variants do raise questions though. I wouldn't buy a current production 6550 at all, heard a lot bad **** about them lol. Now on the other hand the KT88s Chinese/shuguangs are actually pretty badass sounding for not too bad a price at all, good value at least.


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