Hi Gang. Slowhand, Congrats on the new toy. Yeah, the run in time is always a major pain in the butt for most any new equipment, particularly hardwired vacuum tubed stuff.Now that Mick is using the Mundorf capacitors in the suprateks will only prolong the exercise to be sure, not to mention all the transformer coupling employed in the circuit design. Any capacitor employed in the signal path of any given audio circuit will need a steady diet of a modulated frequency to fully open up. Oil filled types in particular are notorious for an excessively long burn time. The Jensen oils,Audionote oils and the Mundorf supreme caps all take at least several hundred hours to completely open up the window. The Mundorf supreme's midrange is magical, incredibly clear and concise right out of the box. With more run in time you will find that window opens larger and larger in both the vertical and horizontal plane.That incredible focus and resolution of the midband will slowly expand in both directions of frequency. The bass frequencies will take the longest to fully open up but when they do they are incredibly resolved.The speed,the pitch, the attack and the decay of bass instruments per sey, percussive bass in particular....cello, stand up bass,plucked bass etc are all just so well resolved it's incredible and almost to good to be true. Moving up in frequency from the midband....brand new the Mundorf's are already very extended,smooth and articulate. It's difficult to imagine and even harder to explain because it's not just so much as reproducing the notes here but the mundorf's ability to capture the sound of silence, the air and the atmasphere surrounding the notes.The space between two or more instruments playing together in the same frequency domain whereby one can clearly focus on each of the musicians instruments as well as ascertain the distance in perspective between them. The Mundorf supremes uncanny ability to clearly focus at both frequency extremes is in a class all by itself in my opinion. You guy's may want to try them in your speaker crossovers well. The Tannoy Westminsters use high quality film caps and resistors in their crossovers to begin with but I was completely floored at what the Mundorf supremes did for them.It's not so much a tonal balance thing here, but that subliminal space and timing thing I was alluding to earlier. The only down side here is that they take even longer to run in when used in a crossover! For those that are impatient or don't like to hear the ongoing change while running in capacitors, Get yourself a copy of the George Cardas frequency sweep LP and let it play for a day or two on each track of the record, your good to go in about 10 days. For those that don't use a phono stage... theres the denson cd, it's basically the same thing, just put it on repeat when your away from your rig, You don't need even need to turn your amp on for this exercise unless your using them in your speaker crossovers. Tom.... If you can't find a copy I can send you mine. cheers
