What Lingo Does

It's clear that what Lingo does is reduce the motor vibration even further.  And part of this seems, according to some tentative evidence, to come from that now familiar 8 Hz vibration.

It seems that the periodic wiggles in the reproduction during groove silence is in fact mostly 8 Hz.

Lingo seems to reduce these wiggles a bit, less than half of previous value.  But to do this analysis I had to compare recordings where the preamp level was different  and account for that, which was not easy at first glance.  A more detailed analysis of my pre and post lingo transcriptions of Blood On The Tracks may be instructive.

On a LP12 with Valhalla arm, avoiding the 8 Hz resonance is essential.  If the arm is not modified, that will be easy with most cartridges, as the very low mass means the resonance will likely be high, and likely causing a problem with too high resonance frequency (above 14 Hz vertical resonance or higher) with moving coil cartridges.

In fact, as I did, you need to add 3-4g additional effective mass for low compliance moving coil cartridge like Dynavector 17D3.  But any more than that gets the horizontal resonance down to the troublesome 8Hz.

I have not at all been able to figure why 8Hz is important, but a friend with Rega suggested it to me, and it might have to do with the vibrations from the motor or bearing and the motor seems like most likely culprit.

So anything reducing motor vibration is a good idea.  Valhalla does this a bit and Lingo does it better.