[Harp-L] re: Products - You're not alone



Hi, John

Saw your post in HARP-L re: " For example what on earth is a RP70? what are "patches"? why hi-z inputs or low-z inputs."

Every trade and hobby has its vernacular and those of us who have been doing it very long tend to forget that it can be complete greek to a new player. You were wise to ask. The RP270 is a DigiTech pedal that some people use in place of an amplifier - it does amp simulation and connects to a "clean" amp like the PA systems. The pedal is programable - you can adjust how much reverb, level, volume, EQ, etc. A "Patch" in this context refers to a program that delivers someone's idea of a cool setup. The pedals often allow you to download one or more of these "patches" to the pedal from your computer. You might have an "acoustic patch", a "tube amplifier 1" patch, a "tube amplifier 2" patch, and a "heavy metal" patch - and can choose any of these easily during performance.

As for Hi-Z and Low-Z - "Z" is shorthand for "impedance". Mics come in both flavors. There is no particular advantage of one over the other tone wise - but it is important to know the impedance of what you have, what you're connecting to, and to have the right cable (and potentially something called an "IMT" or "Impedance matching transformer". Much more on this subject, along with much more, can be found in a document I wrote called "All about harmonica mics, and then some" which you can download in PDF format from my website, http://www.blowsmeaway.com/

Cheers


/Greg


http://www.blowsmeaway.com
http://www.bluestateband.net
http://itunes.apple.com/us/album/duracool/id343874731











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