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→Impedance
For the F-Ball amp model, I find it can get kind of gritty and nasty for the distortion if your guitar signal is a bit bright. When I want a smooth tone from this model, normally I like to use a Mid-Focus EQ to roll-off enough high-end to smooth the tone out. However, if I don't have enough DSP or effects blocks to do so, I will turn down the impedance to attenuate some highs. I like it around 230K for this.
Also, the "auto" setting works well - it matches the impedance to the first effect in your chain, which helps make fuzz boxes sound fuzzier. If the first block is the amp, your impedance is likely 1M, which is the setting for most amps. The [http://line6.com/data/6/0a06434dfb244f7b7f489af64/application/pdf/POD%20HD500%20Advanced%20Guide%20v2.0%20-%20English%20%28%20Rev%20A%20%29.pdf%22 advanced manual ] shows you the input impedance values for each effect when you use "auto" on pages 2.5 - 2.7.
''Remember, if you set the input settings to apply per patch, just because you changed the setting on one patch doesn't mean you are using the same settings for the patch you're currently tweaking. If the patch is noisy or you can't get the tone clean enough, be sure to double-check these settings.''
== The Effects (FX) Loop ==
