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View Full Version : Colin’s Wonfor answers the question:Impedance match of preamp and main amp



Neil McCauley
05-11-2015, 08:56
Q: Dear Colin, impedance match of preamp and main amp. I am considering mating a McIntosh Mc602 with a Bat Vk 51se. I noticed the input impedance on the Mc602 is 10K. While most Bat amps are much higher. Do you see a problem with this? It seems I remember at Stereophile I used to know told me about a ratio minimum of 1 to 25. I am not sure though. Can you advise please? Thanks.

A: I found the spec for the 53 but not the 51. Let’s assume (possible wrong) it’s 200R. if so then it should be OK, but they do mention transformer coupling and this could present a problem with .....

APOLOGY @ 11:24 GMT TODAY. OOPS - so sorry for the cock-up re the original link.

The correct one is: http://www.hifianswers.com/2015/11/colins-clinic-mr-wonfor-answers-your-question-53-impedance-match-of-preamp-and-main-amp/