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New QSC amp ????
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<blockquote data-quote="John Roberts" data-source="post: 92539" data-attributes="member: 126"><p>Re: New QSC amp ????</p><p></p><p></p><p></p><p>In fact class D amps are friendly to that kind of power parsing. While each output channel must be sized for max current, the common power supply is sized for total current. </p><p></p><p>I actually wrote up a product definition for a 4 channel class D power amp in one (2U) chassis co-locatred with a 2 in 4 out digital crossover. At the time I had a total of 1kW of available power, and the digital crossover was still a new concept for the market. So even though I had the in-house technology and working pieces to combine to make one, even I knew better than trying to sell such an expensive high-end product through a low expectation brand and distribution. </p><p></p><p>Today (decades later) amps are bigger, and DSP cheaper so this is an obvious direction IMO. </p><p></p><p>On the downside, as any amp product manager will tell you, any time you deviate from the common 2 channel per chassis power amp configuration, sales volume falls off dramatically, so manufacturing efficiency suffers and costs rise. As nice as it is to buy a 4 channel whatever, people will gladly rack up 2x 2 channel units for a fraction of the cost. </p><p></p><p>At some point in the future we may see the switching power supplies drop in size and cost (due to switching at higher frequency) where the cost savings of one shared power supply offsets the cost increase due to lower sales volume. There are other savings available from combining amps into one package, but always a trade off versus lower manufacturing volume.</p><p></p><p>At the end of the day the market for 4 channel power amps will always be much smaller than 2 channel. In the install industry the highest volume is still mostly 1 channel power amps (built into mixer-amps). I still expect powered cabinets to ultimately make stand alone power amps for sound reinforcement obsolete. </p><p></p><p>JR</p></blockquote><p></p>
[QUOTE="John Roberts, post: 92539, member: 126"] Re: New QSC amp ???? In fact class D amps are friendly to that kind of power parsing. While each output channel must be sized for max current, the common power supply is sized for total current. I actually wrote up a product definition for a 4 channel class D power amp in one (2U) chassis co-locatred with a 2 in 4 out digital crossover. At the time I had a total of 1kW of available power, and the digital crossover was still a new concept for the market. So even though I had the in-house technology and working pieces to combine to make one, even I knew better than trying to sell such an expensive high-end product through a low expectation brand and distribution. Today (decades later) amps are bigger, and DSP cheaper so this is an obvious direction IMO. On the downside, as any amp product manager will tell you, any time you deviate from the common 2 channel per chassis power amp configuration, sales volume falls off dramatically, so manufacturing efficiency suffers and costs rise. As nice as it is to buy a 4 channel whatever, people will gladly rack up 2x 2 channel units for a fraction of the cost. At some point in the future we may see the switching power supplies drop in size and cost (due to switching at higher frequency) where the cost savings of one shared power supply offsets the cost increase due to lower sales volume. There are other savings available from combining amps into one package, but always a trade off versus lower manufacturing volume. At the end of the day the market for 4 channel power amps will always be much smaller than 2 channel. In the install industry the highest volume is still mostly 1 channel power amps (built into mixer-amps). I still expect powered cabinets to ultimately make stand alone power amps for sound reinforcement obsolete. JR [/QUOTE]
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