Hi Teddybutter,

The shielding is added to the input circuitry to protect it from outside noise. However it was determined that when certain guitars with very high impedance pickups are connected directly to TimeFactor?s input, the input circuit becomes sensitive to stray noise. This noise does not occur with all guitars nor when the TimeFactor is preceded by another pedal or connected in the amp?s effects loop

Our records show that your TimeFactor does not have the shield installed, but it may not need it depending on the additional equipment you employ in your rig. If you find that you do experience any erroneous noise, feel free to contact us in the support department for further assistance.

D. Rooney
Audio Support Technician
Eventide Inc.
support@eventide.com