vertical compliance การใช้

While this is partly attributable to slab track's decreased sound absorption qualities, a more significant factor is that slab track typically uses softer rail fasteners to provide vertical compliance similar to ballasted track, and these can lead to more noise, because they permit the rail to vibrate over a greater length.
Even though a monophonic cartridge will technically reproduce an equal blend of the left and right channels, instead of reproducing only one channel, this was not recommended in the early days of stereo due to the larger stylus ( 1.0 mil vs 0.7 mil for stereo ) coupled with the lack of vertical compliance of the mono cartridges available in the first ten years of stereo.