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More about the WHATEVER power supply and external voltages
WHATEVER is the internal power supply inside all 29 pedals.
It accepts 7.5 to 35 volts of AC or DC in either polarity. That basically means that an...
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What does it mean when someone refers to a circuit as "just a buffer?"
As with many topics, especially in the world of guitar effects, "buffer" can be a controversial term. Sometimes you'll hear you must have one, or y...
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What actually is a preamp?
"Preamp" as a technical term, to the extent that it even is a technical term, is an amplifier stage that adds enough gain to bring the signal up to...
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What is meant by "impedance sensitive device?" Why do some pedals care and others don't?
When we talk about "impedance sensitive" pedals, typically we are referring to very early, simple circuits like classic fuzzes and wahs (classic fu...
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Do components matter? Are some components magic?
THE IDEA THAT COMPONENT SELECTION DOES NOT MATTER IS AS FOOLISH AS THE IDEA THAT COMPONENTS CAN BE MAGIC
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What is the input/output impedance of EUNA/OAMP? Is 1M/100R the ideal spec?
Are there figures for input/output impedance that are better than others?
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Q - How do I set up OAMP as an alternate preamp in my amplifier?
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Why should I try EUNA when I have other buffers in the chain?
The buffer in the TU-3 is not a bad place to start, it is very low noise. But it does have some tonal issues to me, I think in fairness it was desi...
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Q - What is the difference between EUNA and OAMP? Do I need both?
A - The two are definitely designed to work together as bookends on a pedal rig, although one of the reasons I put them in separate boxes is so you...
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Q - Why does EUNA want to be first? What's up with fuzzes and wahs?
Why does EUNA want to be first?
I always recommend that EUNA be first in the chain, because the passive output of the guitar is the most sensitive ...
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