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→Boosts
== Boosts ==
Boosts generally do exactly what I describe above: emphasize a peak frequency range to focus the distortion. They are often used for metal to "tighten up" an amp by boosting the upper-midrange and treble frequencies, while often dialing back the muddier bass frequencies.
Additionally, however, boosts can add their own tone, adding compression or certain resonances or other weird stuff. Most players will tell you there's a bit of magic or mojo in their preferred boosts. Personally, I prefer straight up EQ and would prefer to change the amp (model) for the mojo. I find some boosts can "wash out" the signal a bit. But of course it depends on your preference and the actual pedal/device being used. The only way to really tell is to experiment.
The standard for boosts is the Ibanez Tube Screamer; however, due to the variety of both the number of "Tube Screamer" product lines and variances in components used over the years, I think a more accurate standard is the Maxon OD808. Maxon actually produced the original Tube Screamer for Ibanez and claims its OD808 is true to the original circuit. Another that seems to get lots of praise is the MXR Zakk Wylde Overdrive. While I haven't used one myself, I have lots of awesome profiles on my Kemper where it was part of the profiled signal chain.
Another type of boost used more in classic rock and sometimes for leads is a cocked wah - this clearly emphasizes a specific frequency range for the amp to distort, moreso than a typical boost pedal or pre-EQ settings. You'll have to find the right wah and the right position for the sweet spot to emerge.
Some pedals are purely called boosters, or treble boosters. These are more common in vintage rigs, used to overdrive amps with a rather bright tone. I tend to find they can overemphasize treble for modern purposes; however, they are simpler to use.
== Mixing Multiple Distortions ==