The 1:10 ratio does matter as you want to minimize voltage loss at the load input. With most amps/preamps on the market this isn’t an issue because they conform. But to claim this should be completely ignored or best forgotten is nonsense. Last year I was discussing with Keith Herron whether he felt the VTSP-360 would be a good match with my amp and the FIRST thing he wanted to know was the input impedance of my amp. Why would an audio component designer/manufacturer ask a question like that if it didn’t matter at all and was completely unimportant?
INPUT/OUTPUT IMPEDANCE
Hello pro's,
I don't want to over think this, but I just pulled the trigger on a power amp rated at 10k(RCA) 15k(XLR) input impedance. Problem is I don't know the output impedance of my pre/pro(Marantz av7705). I looked everywhere and even called Marantz. My gut tells me all is ok...or is it! I know you should be within the 1/10 ratio. So, does it make much difference whether your 1/10 or 1/100 ratio?
Thanks,
Anthony
I don't want to over think this, but I just pulled the trigger on a power amp rated at 10k(RCA) 15k(XLR) input impedance. Problem is I don't know the output impedance of my pre/pro(Marantz av7705). I looked everywhere and even called Marantz. My gut tells me all is ok...or is it! I know you should be within the 1/10 ratio. So, does it make much difference whether your 1/10 or 1/100 ratio?
Thanks,
Anthony