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<blockquote data-quote="alphakenny1" data-source="post: 1421625" data-attributes="member: 561605">well here&#039;s the thing, the RAA amps are notorious for the popping and hissing in their amps.&nbsp;&nbsp; also the QAA 4 channel amp has gobs of power to be had (250 x 4 @ 4 ohms) while the reference is like 100 x 4 @ 4 ohms.&nbsp; there has been no constant issues with the QAA amps.&nbsp; if you need the power, i&#039;d upgrade to the QAA amp.as for power i&#039;ve tried to look up the specs on the QAA mono amp and from specs none have shown a power output @ 1 ohm so it seems that they are not 1 ohm stable.&nbsp; but also something to consider is your electrical system.&nbsp; if you don&#039;t have a sufficient electrical system the QAA mono amp is a class a/b amp which of course are less efficient while the RAA mono amp is class d.&nbsp; so if you don&#039;t have a sufficient electrical system i&#039;d stick with the RAA amp if not then its up to you.&nbsp; i&#039;m sure you know the huge debate over what sounds better on a sub: class a/b vs class d.&nbsp; many people argue that there is an audible difference between the two and others say science says it doesn&#039;t.</blockquote>

[QUOTE="alphakenny1, post: 1421625, member: 561605"] well here's the thing, the RAA amps are notorious for the popping and hissing in their amps. also the QAA 4 channel amp has gobs of power to be had (250 x 4 @ 4 ohms) while the reference is like 100 x 4 @ 4 ohms. there has been no constant issues with the QAA amps. if you need the power, i'd upgrade to the QAA amp. as for power i've tried to look up the specs on the QAA mono amp and from specs none have shown a power output @ 1 ohm so it seems that they are not 1 ohm stable. but also something to consider is your electrical system. if you don't have a sufficient electrical system the QAA mono amp is a class a/b amp which of course are less efficient while the RAA mono amp is class d. so if you don't have a sufficient electrical system i'd stick with the RAA amp if not then its up to you. i'm sure you know the huge debate over what sounds better on a sub: class a/b vs class d. many people argue that there is an audible difference between the two and others say science says it doesn't. [/QUOTE]

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