+10 on Phosphorous bronze strings I use exp 13's though I found Martin strings get dull fast also you might want to consider a lighter guage?. As for your eq start with the settings at 5 or midway the best thing is to get that guitar neutral and ur amp for that matter and move on from there.... your saying its muddy but you didn't say if your acoustic was muddy as well or if its just plugged in?
I'd start by setting the amp up treb, mid, bass at 5 no effects at all. Same with guitar eq it so everything is middle (I usually leave presence off until I feel its needed and volume to 7ish). And as a rule of thumb because my acoustic could be going thru anything from my elec guitar amp to a pa or a computer I tend to leave the eq on the guitar totally alone. That way I know nm wat I'm plugging into I should be able to get the sound I want by playing with the amps alone. Anyhow
Now play the strings 1 by 1 see if its ringing out clear etc, then a few chords. The trick is to learn what turning that bass, treb and mid knob will do. And how it affects tone. For instance turning the bass down can make ur guitar lose the sharpness of the low strings I.e. hearing the pick attack on etc. The same applies to the treble turning it up can cause you to hear that annoying tinny sound like your acoustic is plugged into a metal bucket uno? Its hard to tell you wat to do in text lol.
Some examples of my eq settings are;
For my fender blues deluxe, everything at 5, presence 3, acoustic eq with treble slightly up. Which btw sounds great with an acoustic thru it.
PA mid 9 treb 5 bass 5 - guitar neutral.
The PA has a tinny treble thing going on which really annoys me so I try dulling it out.
It's all depends on ur ears.... let us know how you get on with it.
