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<blockquote data-quote="TJ Cornish" data-source="post: 30989" data-attributes="member: 162">Re: Voltage swing questionThe voltage swing indicates the maximum voltage potential the amp can produce in whatever test cases the manufacturer has chosen to use - i.e. with no load, 8ohm load, 4 ohm load, etc.&nbsp; Whether that is for the whole amp in bridge mode or single side mode should be easy to figure out working backwards through your formula to see what jives with the specs.At high impedances (16 ohms), many amps are voltage limited - the swing will determine the max power.&nbsp; At more usual loads of 8 ohms and especially low impedance loads of 4 ohms, virtually all amplifiers are current limited, which means the power delivered is limited to the current supply of the amp, and some lower corresponding value for the actual delivered voltage results.&nbsp; In other words, if the load is heavy, the amp is unable to deliver it&#039;s no-load swing voltage under that circumstance.The ITechs are high voltage lower current designs which is why their 8 ohm power is so good but their 4 ohm bridge power is relatively low compared to something like a PL380.</blockquote>

[QUOTE="TJ Cornish, post: 30989, member: 162"] Re: Voltage swing question The voltage swing indicates the maximum voltage potential the amp can produce in whatever test cases the manufacturer has chosen to use - i.e. with no load, 8ohm load, 4 ohm load, etc. Whether that is for the whole amp in bridge mode or single side mode should be easy to figure out working backwards through your formula to see what jives with the specs. At high impedances (16 ohms), many amps are voltage limited - the swing will determine the max power. At more usual loads of 8 ohms and especially low impedance loads of 4 ohms, virtually all amplifiers are current limited, which means the power delivered is limited to the current supply of the amp, and some lower corresponding value for the actual delivered voltage results. In other words, if the load is heavy, the amp is unable to deliver it's no-load swing voltage under that circumstance. The ITechs are high voltage lower current designs which is why their 8 ohm power is so good but their 4 ohm bridge power is relatively low compared to something like a PL380. [/QUOTE]

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