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Modular Amps
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Suggested Mod to resistor at R1?
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<blockquote data-quote="Ricey" data-source="post: 51354" data-attributes="member: 1820"><p>The following is posted in the thread titled, "Documented Modifications":</p><p></p><p>"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."</p><p></p><p>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!</p></blockquote><p></p>
[QUOTE="Ricey, post: 51354, member: 1820"] 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! [/QUOTE]
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Modular Amps
Modules
Suggested Mod to resistor at R1?
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