Originally posted by lamarjones
I'm up for education here....
so what makes it floppy? Cause, we all agree there are floppy b's and tight b's, not necessarily saying the sound coming out of either is better....
First of all, Geoff is correct. For a given string mass, there is only one tension that will produce a specific frequency when limited to a specific length.
With two basses at rest, a $199 Samick and a $1,000,000 custom-made, titanium neck, NASA-approved astrobass, if they are strung with the exact same strings and are of the same scale length, the string tension is going to be the same.
The issue comes when you play them.
Basses aren't perfect. There are all sorts of places where energy is lost. At the nut, bridge, etc. Otherwise any note would sustain forever.
The one factor that most impacts "floppiness" is deflection.
Try this: Grab any of the strings on your bass and pull straight up REALLY hard. Notice that the neck of your bass will bend.
Well, even when you pull the string to pluck it, the same thing happens. The neck bends. In addition, as a string oscilates, it further forces the neck to blend or "deflect."
The deflection is most obvious in the neck, but is really a property of the whole structure of the instrument. For example, a thin-plated, bent bridge (cheap Fender style copy) is more likely to deflect than an ABM that has a 3/8" think, solid brass base plate. Throughbody helps this in that relieves the bridge of this stress, not because it changes strings tension.
The less susceptible an instrument is to deflection, the less "floppy" a string is going to feel. It will also sustain longer and ring more clearly.
Ever notice that a string feels less floppy as you play it higher up the neck? The tension hasn't changed, but the bass deflects less. Why? Ever noticed it is easier to bend a 6-foot pipe than a 6-inch one?
This is why you most often see the least floppy B strings in 5-piece necks, neckthroughs and composites.
This effects the feel of a string MUCH more than tension. In fact, the difference in tension between a 34" and 35" scale (assuming a linear operation. I am not a physicist) is only 2.9 percent.
As for the original question of the Fodera, I guess they know more than I do, but I would think their tuner placement of the B would make things worse, since it is making the break angle over the nut more shallow.