The goal: a warm, round, clean tone where your touch and your hands do almost all the work.
Why less is more
Jazz lives on dynamics, chord voicings and phrasing. Every extra effect blurs the attack or colors the harmony, and dense chords turn to mud quickly. A short chain also means less noise and fewer things to fail on a gig. Many jazz players use nothing at all between guitar and amp, and that is a perfectly good choice.
Tweak it
- Boomy hollow body? Cut amp Bass before reaching for a pedal, and turn down if it starts to feed back.
- Lines sound uneven? Add a little compression, but keep it subtle so your accents survive.
- Reverb check. If you notice the reverb, it is probably too much. Turn it down until you only miss it when it is off.