The following is posted in the thread titled, "Documented Modifications":
"There was an issue discovered after several production runs in all the clean to mid-gain Randall models including the Clean, Blackface, DLX, Top Boost, Plexi, JTM, & Brown, that causes excess distortion overloading the input gain. Too eliminate this issue and clean up these modules, position R1 which is a 470 ohm 1/2w resistor, needs to be changed to a 150 Ohm 1/2w resistor."
I have an old Brown module with the 470 ohm 1/2w resistor. Is it worth modding to the newer spec? What difference would I notice? "Excess distortion overloading the input gain" is probably not a good thing on some of the listed modules; e.g., Clean and Blackface, but it does not sound like a bad thing on a primarily dirty module like the Brown, but what do I know!
"There was an issue discovered after several production runs in all the clean to mid-gain Randall models including the Clean, Blackface, DLX, Top Boost, Plexi, JTM, & Brown, that causes excess distortion overloading the input gain. Too eliminate this issue and clean up these modules, position R1 which is a 470 ohm 1/2w resistor, needs to be changed to a 150 Ohm 1/2w resistor."
I have an old Brown module with the 470 ohm 1/2w resistor. Is it worth modding to the newer spec? What difference would I notice? "Excess distortion overloading the input gain" is probably not a good thing on some of the listed modules; e.g., Clean and Blackface, but it does not sound like a bad thing on a primarily dirty module like the Brown, but what do I know!