Discuss The Viv Lab Rigid Arm


I am trying to do my due diligence about this arm. I am just having a hard time getting my head around this idea of zero overhang and no offset. Does this arm really work the way it is reported to do?

neonknight

Showing 8 responses by boothroyd

because of side force fluctuation . . .

Makes sense to me when paying attention to the coil alignment/stability.

Consider how hypercritical VTF can be on a well setup MC pickup.

Why wouldn’t a stable lateral load be just as important?

Maybe that’s what ARA had in mind with the damping trough of the original Series V??

@lewm  +1 👍

Maybe this indicates that zero tracking angle error is not the Holy Grail some claim it to be.

I only hear great things from VivLabs users describing tangential like performance, easily warranting a debate for anti-skating vs. tracking error.

As the saying goes, “maybe we’re measuring the wrong thing” if the numbers don’t justify the sonic results.

Is it possible that an established priority of setup parameters could be threatened  &/or reshuffled?

@clearthinker @atmasphere 

The hardness of the metal in the bearing is not the only issue.  The fineness of the machining is fundamental.

And let’s not forget materials such as the yoke etc. as some materials reflect energy while others may absorb.

@mijostyn 

twist your cartridge 5 degrees in the head shell and listen to what happens. If you hear nothing wrong either your system or your head does not image.

For purposes of discovery, I’m curious what the result would be with a spherical/conical styli without skating forces acting upon it ? ? ?

 

lewm, I guess I’m curious to discuss if the more linear (skating) underhung/zero offset variety behaves more like a tangential (no skating) scenario.

There is only a single null-point of tangency with the Viv, but the firsthand reports I’ve received indicate the sound is “in the window” or locked-in throughout it’s entire arc.

I greatly appreciate your insight and objective approach, just trying to quantify the positive of what’s occurring with this tonearm which I understand is rather successful in its homeland.

The interest of a conical profile is to nullify zenith issues.

There seems there’s much for me to learn with cartridge behavior regarding the hierarchy of TAE: zenith, over/under-hang geometry and anti-skate - including potentials with different profile styli.

Or, instead of concentrating on stylus tracking angle error, maybe a little thought into motor stability theory is in order?

In my way of thinking, there’s something seriously going on with lateral movement or stability that needs to be addressed.

Validity lies in the sonic experience which no doubt is extremely positive by every firsthand account.

As typically understood, correlation of numerical data does not always explain what sounds good.

The real riot is that people will say up is brighter down is duller

@mijostyn, @clearthinker 

That statement unfortunately is typically correct as the majority of tonearms are not dynamically stable in their vertical plane - a common artifact of tracking force.

DS Exports may no longer be involved.

Here in the US, it’s Mike Fajen @ Sierra Sound: