Face I do think the CAST take longer to break in than VSF. I found them a little tight for awhile. (couple of weeks)
Undertow I read in another thread that you changed coupling caps in the phono stage to great affect. I am very eager to try this as I expect that a simple tube phono stage that the coupling caps will be of huge importance. I have been reading the Clarity cap (white paper) and they (as Dave had mentioned) as well (as Duelund) think resonance to be of huge importance. The cost is much less for Clarity but are not available in values I can test in electronics. .047uf is the largest in the amp. Do they make smaller? What about tonality though? The clarity cap may address resonance but tone?
I have to totally agree with what they say on 5-25khz resonance. I also agree with what they say on preference for resonance. At first when I would have friends listen to the the high resonance vintage foil caps vs. Duelund VSF some liked that resonance at first. Then after about 30 minutes they completely switched to low resonance Duleund. But I could imagine just as Clarity's white indicated some people may prefer the high resonance. The ones who did prefer high resonance (at first) were guys who like hard rock music and had an idea of how a rock concert sounded. (very poor)
Now Undertow with you not being over joyed with Duelund's strength, tone? Sorry I can not remember are you running SS? and is there poly caps in the amp? meaning is the Duelund in the crossover the first foil cap in the system? I can understand other caps being more dynamic quieter etc. but that Duelund tonality for me I would not want be without. I do agree with you if you have poly caps in the amp though as when I had the SS amp here I found Deulund better in tone but not worth the $. I thought about 20% tone improvement of what came from the all foil amp. What surprised me more was that Frederik did not disagree with this? Mighty big of him.
I do expect that what Clarity said about capacitors ALL resonating at 5-25khz is right as well with inductors. That is exactly where the NC inductor gives off noise. Every time I start with that speaker I am impressed with detail but end up switching back to the one with the vintage inductor. (wax paper)
Looking forward to Duelund's WPIO inductor. Should be here soon right guys? I hope/expect it to be quieter in the high freq as it is no doubt will resonate less than the vintage wax paper inductor.
I am waiting on Jimmy's Junkyard test.
Undertow I read in another thread that you changed coupling caps in the phono stage to great affect. I am very eager to try this as I expect that a simple tube phono stage that the coupling caps will be of huge importance. I have been reading the Clarity cap (white paper) and they (as Dave had mentioned) as well (as Duelund) think resonance to be of huge importance. The cost is much less for Clarity but are not available in values I can test in electronics. .047uf is the largest in the amp. Do they make smaller? What about tonality though? The clarity cap may address resonance but tone?
I have to totally agree with what they say on 5-25khz resonance. I also agree with what they say on preference for resonance. At first when I would have friends listen to the the high resonance vintage foil caps vs. Duelund VSF some liked that resonance at first. Then after about 30 minutes they completely switched to low resonance Duleund. But I could imagine just as Clarity's white indicated some people may prefer the high resonance. The ones who did prefer high resonance (at first) were guys who like hard rock music and had an idea of how a rock concert sounded. (very poor)
Now Undertow with you not being over joyed with Duelund's strength, tone? Sorry I can not remember are you running SS? and is there poly caps in the amp? meaning is the Duelund in the crossover the first foil cap in the system? I can understand other caps being more dynamic quieter etc. but that Duelund tonality for me I would not want be without. I do agree with you if you have poly caps in the amp though as when I had the SS amp here I found Deulund better in tone but not worth the $. I thought about 20% tone improvement of what came from the all foil amp. What surprised me more was that Frederik did not disagree with this? Mighty big of him.
I do expect that what Clarity said about capacitors ALL resonating at 5-25khz is right as well with inductors. That is exactly where the NC inductor gives off noise. Every time I start with that speaker I am impressed with detail but end up switching back to the one with the vintage inductor. (wax paper)
Looking forward to Duelund's WPIO inductor. Should be here soon right guys? I hope/expect it to be quieter in the high freq as it is no doubt will resonate less than the vintage wax paper inductor.
I am waiting on Jimmy's Junkyard test.