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Tube Amp Noise with Klipsch Cornwall II

I just bought a pair of Klipsch Cornwall IIs for my Rogue Cronus integrate amp to replace a pair Spendor S3/5 SEs. Wow - bigger speakers are amazing. BUT now there is hiss coming through both speakers which can be heard 10 feet away - at all settings, even with volume all the way down.
The tube set is:
4 KT77s - which Rogue had made
3 - Electro Harmonix 12AU7s
2 Sovtek 12AX7LPS

Can anyone suggest how to lower my amp noise floor so I can enjoy these speakers?
waukeag

Showing 1 response by magfan

magfan
1,583 posts
 
I am totally not up-to-date on tube equipment. Are test points and adjustment pots easily accessible??
I like the 'tune up' idea before any tube changes.

Lowering the gain of the amp sounds too much like a re-design?

I know this is a BAD thing to say, but SS?
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