Affect of resistor in amp input?

[rockon1]

My Laney has a 68K resistor in line on the input(ie: guitar cable tip-resistor-hot lead of input) of the high gain input. What would be its purpose and what affect would increasing or decreasing its value make?Bob

[dai h.]

good article on this by Aiken Amps' Randall Aiken:

http://www.aikenamps.com/InputRes.htm

[rockon1]

thanks-good info! Im thinking perhaps of trying a 470K -maybe attenuate and roll off the highs a small bit? Bob

[rockon1]

OK installed a 470k. I think its helped a lot really. Hasnt affected the gain really. Heck almost seems like it has more-go figure! However its not as buzzy,fizzy and overloaded sounding. So far so good. Bob