I bought a realist over ten years ago. I have noticed that the higher frequencies started to disappear over the last 4 years, now it's just low end. I heard from a friend of mine that he went through 3 of them because the same thing was happening, now he has the full circle.
Wilferbass,
Several years ago we ran a thread on TB about Realist failure. A person from David Gage's Shop came on to the thread to state that the Realist on some basses will start to fail at around the 4 year mark. It has something to do with the angle of the bridge. Here is what Sam Findlay from David Gage Said.
"An answer from David Gage String Instruments
It has been a long time since I’ve searched the buzz on TalkBass, so please excuse our delay in responding to your questions.
First, we’d like to make clear that the vast majority of our clientele DO NOT experience a drop-off in sound or response from The Realist. That being said, we do recognize that The Realist, after 5 or so years, will start to degrade gradually. As some of you have said, the pressure applied by the bridge feet is substantial and over time, it can take its toll on piezo ceramic elements. We have also decided, however, that the realistic sound the pick-up produces is a result of the unique combination of piezo size, quality, and the specific stimulation the element is afforded because of its placement under the bridge foot. –For us (and most of our customers, it seems,) the sound The Realist has become famous for is more important than durability beyond 5 years.
Why does it drop-off or degrade? Most of the evidence we’ve gathered is simple and empirical. It seems that certain bridges wear the element more intensely than others. We suspect that taller bridges, bridges that press with greater force against the top, wear the elements at a greater rate. Beyond that, we are not sure what the exact cause of the increased wear is, so we asked a couple of experts.
Rich Brooks, a piezo engineer at the American Piezo Coorporation, says, “there is a logarithmic deterioration or amelioration of a piezo’s properties over time.” Mr. Brooks says that there are many different reasons for this. He says, “[Deterioration] will be mitigated by the effects of temperature, other materials and mechanical interface.” He agreed with what we had hypothesized and didn’t see any way of avoiding the drop-off without substantially changing the element, an action that would alter the output and clearly diminish the true value of the pick-up.
As soon as we have more information, I’ll post our findings on this site.
If any of you have any additional questions, please feel free to call or email me directly.
All the best,
Sam Finlay
David Gage String Instrument Repair, Inc.
[email protected]
Ric