cuttercollector
Joined: 11 Jun 2006
Posts: 241
Location: San Jose, CA
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 Posted: Wed Nov 14, 2007 2:13 pm Post subject: |
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Hi, respectfully, your question makes no sense. You don't "use" ohms.
They just exist. Every speaker or cutter has a characteristic impedance measured in ohms. This is a nominal value that varies somewhat with frequency. The question is, do you have enough power available from your amp to adequately deliver the wattage across that load impedance needed by the cutter for the maximum level it was designed to cut at. This depends on the power of the amp into the rated load impedance of the cutter. Too little power and the amp will clip which will result in distortion and could damage the cutter if excessive. Too much available power is not as big an issue, you could over drive it and burn the cutter out, but the cutter would probably reach it's mechanical limits and also produce distortion, so you would turn it down. In general it is good to use equipment within the limits it was designed around. Most older non feedback cutters were designed when 30 watts was a huge amplifier output. So, if your cutter is, say, 4 ohms and you have an amp that has a good clean 40 watts available into 4 ohms, that is about as good as you can expect. Of course it helps if your cutter is re-built and magnetized properly so it is as efficient as possible at translating power in to a nice loud clean cut. |
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