Looking for a KRELL KSA 250 Signature Series Edition
I just purchased this particular beast, now I'm looking for another!!!
If anyone can help me with this quest of the Holy Grail of amplification, I would greatly appreciate this.
Thank You for any help. GWW3@acninc.net
I just purchased this particular beast, now I'm looking for another!!!
If anyone can help me with this quest of the Holy Grail of amplification, I would greatly appreciate this.
Thank You for any help. GWW3@acninc.net
I have a KSA150 that had a little problem and was sent to Len Wallis to sort out.
Six months later the entire amp was rebuilt with almost every board being diagnosed. At one point they were suggesting I sent it to Krell to fix. They said it's the most complicated amp they have ever worked on.
It went in after the soft start circuit failed and then a tiny saw wave of about 1hz was moving the speaker. this was not related at all to input or volume. It just was always there. One day it just went into whit noise fuzz and I shut it down.
It's back now and sounding great but I am still not too happy with the soft startup circuit.
Best of luck with your repair.
I am always on the lookout for another KSA150...
Six months later the entire amp was rebuilt with almost every board being diagnosed. At one point they were suggesting I sent it to Krell to fix. They said it's the most complicated amp they have ever worked on.
It went in after the soft start circuit failed and then a tiny saw wave of about 1hz was moving the speaker. this was not related at all to input or volume. It just was always there. One day it just went into whit noise fuzz and I shut it down.
It's back now and sounding great but I am still not too happy with the soft startup circuit.
Best of luck with your repair.
I am always on the lookout for another KSA150...
Hi Null,
what does the soft start do?
Are there two of them?
Is it a short time delay using resistors and relay to reduce the peak start up current into the fluxless transformer?
Or does it have a longer time delay that reduces the start up peak current and also reduces the power input to the transformer and thus attempts (badly) to reduce charging current into the smoothing caps?
what does the soft start do?
Are there two of them?
Is it a short time delay using resistors and relay to reduce the peak start up current into the fluxless transformer?
Or does it have a longer time delay that reduces the start up peak current and also reduces the power input to the transformer and thus attempts (badly) to reduce charging current into the smoothing caps?
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