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<blockquote data-quote="n2audio" data-source="post: 8466716" data-attributes="member: 540940">1 vs 4 ohms won&#039;t make much (any?) difference if the power level is similar.Generally, an amp&#039;s efficiency will drop a little as it gets closer to minimum impedance, but only by a few percent.1000w at 4 ohms vs 1000w at 1 ohm probably wouldn&#039;t amount to more than a 5-10% difference in current draw assuming the amps are the same class.SQ -- pretty subjective.&nbsp; The main difference would be damping, but at ~1000w to a pair of 12&#039;s I really don&#039;t see that as a major factor unless it&#039;s a POS amp with an exceptionally low DF to start with.So technically 4 ohms would be preferable to 1, but realistically it&#039;s not likely you&#039;d hear a significant difference based only on impedance.However, you&#039;d probably pay twice as much (or more) for 1000w at 4 vs 1000w at 1.ppi1000.1 would be a good fit.</blockquote>

[QUOTE="n2audio, post: 8466716, member: 540940"] 1 vs 4 ohms won't make much (any?) difference if the power level is similar. Generally, an amp's efficiency will drop a little as it gets closer to minimum impedance, but only by a few percent. 1000w at 4 ohms vs 1000w at 1 ohm probably wouldn't amount to more than a 5-10% difference in current draw assuming the amps are the same class. SQ -- pretty subjective. The main difference would be damping, but at ~1000w to a pair of 12's I really don't see that as a major factor unless it's a POS amp with an exceptionally low DF to start with. So technically 4 ohms would be preferable to 1, but realistically it's not likely you'd hear a significant difference based only on impedance. However, you'd probably pay twice as much (or more) for 1000w at 4 vs 1000w at 1. ppi1000.1 would be a good fit. [/QUOTE]

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