Hey folks. I was messing around today with three different preamps: my own tube pre, a SCA C84, and an AML ez1073. Did the 19kHz/20kHz signal IMD test and came up with these three different results. (See photo.)
All three preamps were calibrated with this same input and output levels.
So, what does all this mean? All three preamps exhibit extra bands to the left and right (evidence of IMD, right?) The C84 (Millennia) showing no 1k "beat" frequency? The extra bands around the Neve?
Just trying to understand this better.
All three preamps were calibrated with this same input and output levels.
So, what does all this mean? All three preamps exhibit extra bands to the left and right (evidence of IMD, right?) The C84 (Millennia) showing no 1k "beat" frequency? The extra bands around the Neve?
Just trying to understand this better.