C class a New Member Mar 2, 2016 #41 Jul 11, 2011 70 0 0 Mar 2, 2016 #41 LL21 said: Hi...have not tried but it seems a few have and liked them. The tube itself is not inexpensive but the tube damper was 19 bucks each last time i bought them. Well worth it imho. Click to expand... After my preamp breaks in I'll get the EAT Tube Damper. Current price seems to be $35. But I only have one tube so that's not bad.