I would definetly recommend switching the stock tubes.
As Tvad posted earlier he let me borrow a set of Philips
miniwats and the difference they made was amazing.
The Philips were much quieter and had better bass
extension. The midrange was more defined and detailed.
The original Sovtek tubes sounded muddy and congested by
comparison. I would never go back to the stock tubes
on my 17LS.
Good luck
cmach
As Tvad posted earlier he let me borrow a set of Philips
miniwats and the difference they made was amazing.
The Philips were much quieter and had better bass
extension. The midrange was more defined and detailed.
The original Sovtek tubes sounded muddy and congested by
comparison. I would never go back to the stock tubes
on my 17LS.
Good luck
cmach