Impedance mismatch question


Amp is 23k ohm input impedance. Preamp is 1k ohm output impedance. I have been told that I need at least 50k input impedance on amp or sound will suffer. Can anyone explain why? How will sound be degraded?
2out2sea

Showing 1 response by 2out2sea

Thank you all very much. To further clarify why I am asking I will list my equipment;
Audible illusions 2d pre
Cary 308 cdp
Emotiva xpa 2 gen2 amp
Gallo reference 3.5 speakers with gallo sub amp
Power cords are tributaries silver and grace note custom
Interconnects are homegrown audio super silver bw all components
I am waiting on a set of aes six pac tube amps to arrive as well.

I ask about the impedance mismatch bc I was recommended to have at least 50k ohm input impedance on the amplifier side. Sometime next year I am looking to purchase an emotive sira or custom emotive amp and Fred volts too says that impedance matching for a 23k ohm amp is difficult.

I have a slightly bright and forward sound right now that I am hoping to cure with the six pacs. But, I really like the dynamics of the emotiva amp. I picked it up as a fluke and am actually really enjoying it. It sounds very krell like to me. That being said, I never bought krell gear because while they have always sounded good, I always found them bright.

I have been wondering of late if the impedance mismatch could have been causing some of the brightness I have been hearing. It wasn't there with my old b&k ex442. But, based on the comments above it sounds as if the bottom end is where I would be hearing anomalies.