We're using the same cartridges we've introduced in the previous posts. And today, we will largely focus on the Denon DL-103
and the Ortofon SL-15E
. The very compliant and very well dampened Shure M97xE
just doesn't generate enough low frequency vibration to entertain us. So in some charts the "Shure" line is missing—this means there was nothing but noise there at low frequencies.
First, the torture test. We'll play back the two nearly unplayable LPs, and see what the effect of vertical warps is. I sometimes use the first one ("Warp 1") as a cartridge suspension test—the older cartridges with dried out elastomers cannot navigate it at all.
For comparison's sake, we'll also measure what happens when we play back the normal LPs. Not warped, not perfectly flat, just average.