Members 2manband Posted March 13, 2007 Members Share Posted March 13, 2007 I recently purchased a Crown Macro-Tech 2400. Viewed from the end, the factory plug end has (in addition to the ground) two prongs configured like this: ! - instead of the usual configuration: ! ! The seller provided a converting "pigtail" so that I can plug it into a standard ! ! outlet. What's the reason for the unusual configuration? Am I doing anything wrong if I just use the adapter? I've read that the amp can trip a 20 Amp breaker - is the unusual plug related to the unusually large current draw? Thanks Link to comment Share on other sites More sharing options...
Members agedhorse Posted March 13, 2007 Members Share Posted March 13, 2007 This is a standard solution for a product that must meet UL requirements AND needs a 20 amp branch circuit to do so. It doesn't mean that the amp will not perform "ok" on a 15 amp branch circuit, but may not deliver it's 2 ohm rated power without exceeding the 15 amp branch circuit rating. The MA series is notorious for being especially inefficient under this 2 ohm high duty cycle condition, as it does not have a limiter and can draw considerably more power when clipping into 2 ohms. Link to comment Share on other sites More sharing options...
Members 2manband Posted March 14, 2007 Author Members Share Posted March 14, 2007 Thanks as always for the knowledgeable response Link to comment Share on other sites More sharing options...
Members boomerweps Posted March 14, 2007 Members Share Posted March 14, 2007 More simply put, that is a 20 amp plug. Didn't you ever notice some outlets have a sideways "T" on them, those are 20 amp outlets. If an item is rated to need or use over 15 amps, it must have a 20 amp plug to get UL approval. Boomerweps Link to comment Share on other sites More sharing options...
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