I recently purchased a BHK Preamp and I also purchased 2 of Herbie’s ‘Tube-Dampers’.
They are the Model ‘SS-9’ size.
They fit perfectly and WOW did I hear an improvement in sonic quality right after I slid them on to both tubes.
It was amazing…
I was actually wondering ‘IF’ it might actually hear any improvement. BUT to me, it has proven that I do in fact have a very “resolving” system and any change will be noticed as is the case in this case!
I plan to keep them on the tubes and should I change the original Psvanes out to something else, then the ‘Tube-Dampers’ will come with the change.
So the bottom line is that if you do not install the Herbie’s SS-9 Tube Dampers then in my opinion, you are missing out on better sonic performance from top to bottom.
The Herbie’s Audio Lab UltraSonic SS-9 Damping units are the right and correct way to go.
The cost was $15.49 each and I had a shipping cost of $7.05 for a total landed cost to me of only $38.03.
Guys, they do work and I completely recommend them to all that have a BHK Preamp.
Enjoy the sound and happy listening to you all.
I am one happy camper and very pleased I installed them…