Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Effects unit:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

There is also a niche market for modifying or "modding" effects.[citation needed] Typically, vendors provide either custom modification services or sell new effects pedals they have already modified.[citation needed] The Ibanez Tube Screamer, Boss DS-1, Pro Co RAT and DigiTech Whammy are some of the most often-modified effects.[1][2] Common modifications include value changes in capacitors or resistors, adding true-bypass so that the effect's circuitry is no longer in the signal path, substituting higher-quality components, replacing the unit's original operational amplifiers (op-amps), or adding functions to the device, such as allowing additional control of some factor or adding another output jack.[1][3][4]