Question about Crate Music
You can reach the limiting IRRESPECTIVE of where the volume control is set when you have a guitar or other source that has HIGH output.
Guitars that have battery in them with internal amplifiers are an example of a high output guitar. Plain inductive pickups may require the volume control to be set at say 70% to reach limiting.
Please NOTE that the volume control is NOT linear, but is an "audio taper".
Limiting means you are probably driving it too hard. Many learn the hard way when speakers and thee power amp fail.
When the cone is driven too far beyond the pole pieces of the magnet, then the IMPEDANCE of the speaker becomes relatively low and can damage the power amp. The limiter tries to prevent this by sensing the current and or voltage and will back off the gain internally. This causes distortion when it happens.
Posted on Dec 14, 2009
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