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<blockquote data-quote="Phil Graham" data-source="post: 33689" data-attributes="member: 430">Re: Yes, it&#039;s cliche, yes it&#039;s overdiscussed, but yes, I need new subs.Yes, exactly. Also, these numbers are not mysterious, but can be calculated, independent of the datasheet, for any driver/box combination you have the specifications for. You are not beholden to the marketing department&#039;s interpretation of what the output will be.You know what you&#039;ve got to work with, so you can use those parameters to pick driver/box combinations that provide maximum value for the money. No need to overspend on drivers if your amps aren&#039;t up to the task, and no need to buy the top shelf amplifiers if you can&#039;t afford the drivers that can manage that input level. From the itech 5000HD datasheet, it would appear that the amplifier has 100V_rms rails. That will be a good match for many middle of the road 18&quot; drivers.The thing you might have missed is that many subwoofers have ports that are too small, and therefore those with undersized ports can be eliminated from consideration.</blockquote>

[QUOTE="Phil Graham, post: 33689, member: 430"] Re: Yes, it's cliche, yes it's overdiscussed, but yes, I need new subs. Yes, exactly. Also, these numbers are not mysterious, but can be calculated, independent of the datasheet, for any driver/box combination you have the specifications for. You are not beholden to the marketing department's interpretation of what the output will be. You know what you've got to work with, so you can use those parameters to pick driver/box combinations that provide maximum value for the money. No need to overspend on drivers if your amps aren't up to the task, and no need to buy the top shelf amplifiers if you can't afford the drivers that can manage that input level. From the itech 5000HD datasheet, it would appear that the amplifier has 100V_rms rails. That will be a good match for many middle of the road 18" drivers. The thing you might have missed is that many subwoofers have ports that are too small, and therefore those with undersized ports can be eliminated from consideration. [/QUOTE]

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