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In Reply to: RE: D150 How closely matched posted by Cpwill on October 18, 2014 at 14:29:08
The absolute value of the number on the bag is not relevant for your purposes. That fact that you have a matched pair is relevant...
Kevin Carter
K&K Audio
www.kandkaudio.com
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Thanks, but not sure my question was clear enough. Currently, I have the new D150 only in the right channel, the channel that was previously dead. The right channel now measures correctly and plays music. The left channel still has the D150 from the original upgrade kit. It also measures correctly and plays music. The MP numbers on the respective bags - new replacement pair v. original upgrade kit pair - are within 2.5% of each other. Is that close enough, or should I change out the left D150 for an exact match, even though changing the D150 is a pain in the ass?
Thanks again.
Yes, I didn't understand the intent of your question. I sent you a pair with the intention that you replace both as I talked about on the 'phone.
I don't really know if the small difference between the bias voltage as tested is enough to cause an audible problem. If I were worried, I'd settle that by listening to a mono record and deciding whether the image is centered. If it isn't then I'd swap the interconnects from the turntable and going to the preamp R for L and L for R, to see if the off-center image moves to the other side of center or not, if it does, then perhaps you need to change the other original MOSFET out.
Kevin Carter
K&K Audio
www.kandkaudio.com
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