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Strings for FAT Precision tone

Hi. I'm sure this topic has been discussed before. I've used the search function but only found threads from years ago, so let's try again.

I have a Fender Precision that I really like, but I want a thicker, fuller sound. I've already changed the pickups and raised the action. Even so, I'd like it to sound a bit fuller, and it might be because of the strings. I'm using Elixir Nickel 105s, which are quite bright strings. I'd like you to recommend some roundwound strings that bring out a lot of bass and body. I don't want flatwound strings. I have another Precision with flats, and I want this one with rounds to play rock. I like medium to high tension. Thanks in advance, and best regards.
 
GHS Big Core Bass. Not sure if they still produce them under a new name but I guess there must be shops that still stock them.
Nice teal color silks and high tension for sure.
 
Hi. I'm sure this topic has been discussed before. I've used the search function but only found threads from years ago, so let's try again.

I have a Fender Precision that I really like, but I want a thicker, fuller sound. I've already changed the pickups and raised the action. Even so, I'd like it to sound a bit fuller, and it might be because of the strings. I'm using Elixir Nickel 105s, which are quite bright strings. I'd like you to recommend some roundwound strings that bring out a lot of bass and body. I don't want flatwound strings. I have another Precision with flats, and I want this one with rounds to play rock. I like medium to high tension. Thanks in advance, and best regards.
Have you tried DR Pure Blues or GHS Boomers?
 
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It's always tricky to translate terms like "Fat tone" into actual frequency response curve because everyone might define fat differently. My guess is you want more bass even though you like bright strings? Sounds like you possibly want a scooped tone with lots of lows & highs? Correct my assumption if needed.

All other things being equal:

- The thicker the string, the more the tone shifts towards the fundamental frequency. You get more low end and more low end clarity.

- The thicker the string, the tighter it needs to be to play the same note, so that should add some stiffness too. (Think of it like this: Tuning your E string and A string to the same note, the E will be tighter and the A will be looser.)

- Nickle is warmer than nickle-plated is warmer than stainless-steel.

The tricky bit is it's kinda impossible to keep all the other variables equal, especially across different brands or even different string types within brands. A bass string isn't just a long wire. It's a core, with one or more wire wound around the core. The diameter and shape of the core change things. The diameter and shape of the winding wire change things. The metal changes things. Different recipes for the same metal changes things. Theres probably a dozen other characteristics that come into play.

So i can't just say any thicker gauge string will give you what you want. But, a good starting point to limit the variables is, if there's a specific string you like the feel and brightness of already, start with getting the thickest version of those. It'll limit how many other things that affect tone change other than the gauge. You'll see what changing just the gauge does and go from there if you don't like them.

Another option is to scoop the EQ on your amp a few dB. Maybe a bit of low-mid boost too? (I am a big fan of having the tone you want from the bass and not fixing it with EQ, leaving the EQ to adjust for the audio-situation. But it's an option.)
 
I Never think of changing strings, so take this all with a grain of salt :

When I want what I think of as FAT, I reach for my preamp and boost low mids between 250-500 Hz

Did you exhaust non-string FAT options?
  • turn the tone knob down
  • pluck near the neck not the bridge
  • turn up and pluck with a lighter touch

The real way to science out what FAT is to you is with a parametric EQ or a notch filter
Sweep a frequency boost / notch across the spectrum
until you hear the FAT you seek, and note the exact Frequency
That can help you make more informed decisions going forward