Description
When the Shubb capo was first introduced about 40 years ago, guitarists throughout the world fell in love with it. They’re still in love with it today. We’ve given it a few tweaks through the years, but its basic mechanical principle remains the same: a unique over-center locking mechanism that provides an unrivaled combination of power, speed, accuracy and ease of use. One smooth flip of the lever locks it securely in place, and removes it just as quickly.
And the Shubb capo is BY FAR the best at not creating tuning problems. Its soft, resilient rubber is specially designed to work just like a fingertip, so it doesn’t bend the strings over the frets. Its closing action is just like your hand, so it doesn’t pull the string off center. As a result, no re-tuning is necessary!
We’ve made up a name for the the difference between the amounts of pressure applied at these two points; we call it dropoff.
More dropoff means a greater difference between pressure encountered as it passes through center, and the pressure applied in the locked position. Less dropoff means a lesser difference between pressure encountered as it passes through center, and the pressure applied in the locked position.
Offhand you might imagine that the least amount of dropoff would be best, but that’s not exactly the case. If you have too little dropoff, the lock is less secure and there is a risk of the capo opening accidentally. It NEEDS that dropoff in order to work. But if you have too much dropoff, too great a force is applied to the guitar neck while closing, and there could be too little pressure applied in the closed position for the truest tone.
So you see, there is a JUST RIGHT amount of dropoff that makes for perfect capoing.
On the original Shubb capo, with the Delrin cap, the dropoff increases at the smallest end of the capo’s range, and decreases at its widest end. In other words, when used on an very thin guitar neck, the dropoff effect is exaggerated. In the extreme, it could result in insufficient pressure on the strings when engaged. On an unusually thick neck, the dropoff is minimal. In the extreme, it could result in an insecure lock, and too much pressure on the strings when engaged.
The roller mechanism equalizes the dropoff across the full range of the capo.
Because the roller head adjusts upward on an arc (as opposed to a straight line) it moves inward toward the center curve of the middle piece of the capo as it is tightened – so it does not move further past center when it is set tighter. This maintains a relationship between the moving parts that results in the same, ideal amount of dropoff at any point within the capo’s working range.
So you get the ideal amount of dropoff on a thin neck, on a thick neck, and all those in between … and on different parts of the same neck.