waldo041 wrote:what is the difference between a low impedance output versus a high impedance output when a guitar cable is placed after them?
claytushaywood wrote:waldo041 wrote:what is the difference between a low impedance output versus a high impedance output when a guitar cable is placed after them?
a low impedance output will drive the cable better.....
claytushaywood wrote:I've noticed when playing active guitars that the volume knob is much more effective over the range of te sweep. There is a better taper and it seems there is no treble loss when you turn dow the knob. I was wondering if this is due to havin the buffer placed before the volume pot and then using a 25k pot for the volume control.
I was wondering if anyone had any insight on doing this with my strat and an alembic stratoblaster clone that I am going to build. Would it help my volume controls effectiveness if I put the blaster in between the switch and the volume pot (or maybe somewhere else before the pot)... what value pot would I want to use and would this work/ help? Wuld it be different than placing It after like the typical blaster install?
Thanks a bunch!!
waldo041 wrote:The answer is the low impedance output isolates the cable capacitance. So it is not creating a low pass filter like traditional high impedance pickups and cable capacitance do. So with a low impedance output regardless if you use a preamp/buffer in front of or behind a volume control you will not be filtering highs from you signal. Whether you put the blaster in front of a 25k pot or behind a 250k pot the results should be pretty much the same. What you don't want to do is use a 250k after the preamp/buffer because you are not utilizing it's low impedance output and are just recreating a high impedance output. ie.. a low pass filter. This is the reason why active/buffered guitars retain their high end throughout the rotation of the volume pot.
I just assumed with the knowledge you pass and checking out your avatar that you would rather be pushed to answer your question yourself. I was just trying to help instead of just throwing the answer out there.
claytushaywood wrote:honestly, that's a very basic explanation- "the low impedance isolates the cable capacitance". Why does it do that?
claytushaywood wrote:you're answer basically ended up being "the results should be pretty much the same".
claytushaywood wrote:IE: people in practice believe that sending the volume pot a low impedance signal will cause it to function better than placing the volume control before the buffer.
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