Upgrade the control system of your bass with the Emerson Custom Prewired Kit for Fender Precision Bass and other bass guitars. This kit's premium components include precision-made potentiometers, an Emerson Custom Paper in Oil Capacitor, a Treble Bleed mod to keep your tone from getting muddy when you turn down the volume, and a Switchcraft input jack. They have been prewired and soldered so you can drop them in your guitar with minimal work. Every Emerson Custom pot is hand-metered in-house and falls within +/- 8% tolerance, and their capacitors are the only new mil spec capacitors in production in the US. Bass players at GearNuts know that every component in your bass affects your sound - improve tone and control feel with the Emerson Custom Prewired Kit for Fender Precision Bass and other bass guitars. Emerson Custom Prewired Kit for Fender Precision Bass Features at a Glance: Prewired bass