SD-1 Background Noise

ct88 · Post by **ct88** » 26 Mar 2011, 17:54

hey guys, i TrueBypassed a modded SD-1 to avoid bad buffers on bypass, but a problem came out: when i turn it on i obtain a lot of popping noise.

Any Suggest on how to solve that?

Thanks in advance

ct

DrNomis · Post by **DrNomis** » 27 Mar 2011, 05:07

ct88 wrote:hey guys, i TrueBypassed a modded SD-1 to avoid bad buffers on bypass, but a problem came out: when i turn it on i obtain a lot of popping noise.

Any Suggest on how to solve that?

Thanks in advance

ct

Try putting a "pull-down" resistor on the input on the circuit board, a good resistor value is anything from 1M to 4M7, hope that helps.....

ct88 · Post by **ct88** » 27 Mar 2011, 14:30

already done but nothing new on pop noise :\

mictester · Post by **mictester** » 27 Mar 2011, 15:24

ct88 wrote:hey guys, i TrueBypassed a modded SD-1 to avoid bad buffers on bypass, but a problem came out: when i turn it on i obtain a lot of popping noise.

Any Suggest on how to solve that?

Thanks in advance

ct

Put it back to how it was! The buffers neither add nor take away from the sound of the effect. They are actually beneficial in the bypass mode because they provide high input impedance and low output impedance, so they will drive long cables or other effects without losses.

I really can't understand the obsession people have with "true bypass" and "no buffers"....

ct88 · Post by **ct88** » 28 Mar 2011, 19:32

i have better Buffers @the start and @the end of the chain

i hate Boss buffers because the "eat" a bit of top-end

thats why i truebypassed

quaternotetriplet · Post by **quaternotetriplet** » 28 Apr 2011, 23:55

add pulldown resistor on the output side... 10k will do.