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<blockquote data-quote="thylantyr" data-source="post: 3031854" data-attributes="member: 560358">Your meter reads 4 ohms, then your speakers are probably ~6 ohm impedance,an easy load. What type of fan noise are you talking about? The wind noiseor noise that makes it&#039;s way into the audio? I don&#039;t hear any fan noise leakinginto the audio, the wind noise is just a matter of turning off the fans.The QSC PLX driving 6 ohm sepeakers would actually outperform the majorityof home amps on the market in the clipping headroom category. It&#039;s class ABoutput stage, SQ is the same as any good home amp with a class AB stage.There is very little difference from proamp circuit topology vs. home audiotopology, the proamps just have a smaller size chassis to cram the power in,hence they use class H power supply. Plus, they don&#039;t use huge heatsinks because they don&#039;t fit, so they install the fans. But these amps are also rateddown to 2 ohm/ch. If you don&#039;t push them hard, they don&#039;t get hot and youdon&#039;t need the fans turned on. The other thing that you get with proampsvs. home amps is more features. Clipping indicators, subsonic filters, gaincontrols, limiters {on/off}, etc.You could take a $600 PLX, take it apart and put the guts in a standard highend home audio amplifier chassis, reloated the output stage transistors tothe big heatsinks {no fans}&nbsp; and scam people into thinking it&#039;s a $5000 home amp.&nbsp; They would never know from an SQ point of view. It would actuallyperform better due to it&#039;s higher headroom.How many home amps do you know of that cost $600, is class H, SMPS,has gain controls, and clipping lights? lolFear..... more beer//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif</blockquote>

[QUOTE="thylantyr, post: 3031854, member: 560358"] Your meter reads 4 ohms, then your speakers are probably ~6 ohm impedance, an easy load. What type of fan noise are you talking about? The wind noise or noise that makes it's way into the audio? I don't hear any fan noise leaking into the audio, the wind noise is just a matter of turning off the fans. The QSC PLX driving 6 ohm sepeakers would actually outperform the majority of home amps on the market in the clipping headroom category. It's class AB output stage, SQ is the same as any good home amp with a class AB stage. There is very little difference from proamp circuit topology vs. home audio topology, the proamps just have a smaller size chassis to cram the power in, hence they use class H power supply. Plus, they don't use huge heatsinks because they don't fit, so they install the fans. But these amps are also rated down to 2 ohm/ch. If you don't push them hard, they don't get hot and you don't need the fans turned on. The other thing that you get with proamps vs. home amps is more features. Clipping indicators, subsonic filters, gain controls, limiters {on/off}, etc. You could take a $600 PLX, take it apart and put the guts in a standard high end home audio amplifier chassis, reloated the output stage transistors to the big heatsinks {no fans} and scam people into thinking it's a $5000 home amp. They would never know from an SQ point of view. It would actually perform better due to it's higher headroom. How many home amps do you know of that cost $600, is class H, SMPS, has gain controls, and clipping lights? lol Fear..... more beer [IMG]//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif[/IMG] [/QUOTE]

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