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Car Audio Discussion
General Car Audio
First time amp and speaker install
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<blockquote data-quote="n2audio" data-source="post: 8549486" data-attributes="member: 540940"><p>It sounds like you're all caught up in associating big power ratings with big performance. That is never a good way to try to identify the worth of a piece of equipment. ALWAYS ignore peak/max power ratings. They are meaningless. RMS ratings are the ones that matter, and among the lower cost brands those are inflated too.</p><p></p><p>Is your amp the XPR-540? They can rate it however they like. The fact of the matter is it has a pair of 25A fuses.</p><p></p><p>Just so you know what it's actually capable of...</p><p></p><p>It can't possibly produce much more than 500w rms. It is more likely to be in the 400w range. That's 100x4 at 2 ohms per channel. Probably ~75w x 4 if it's running 4 ohm speakers.</p><p></p><p>Which Power Acoustik sub? The GW3? I believe that's only a dual 2 ohm sub which makes it a bit of an impedance mismatch with the Kicker. Do you understand DVC wiring? How is it wired? Parallel for 1 ohm (a problem for the amp)? Series for 4?</p><p></p><p>What type of box is the sub in? They claim it can be ported or sealed, but it's very much a sealed box sub. Either way it can't play very low. When looking at a sub's frequency response plot, something relatively flat is the goal. The curve for that sub has an obvious spike in the 50-70 hz range which will make about any music sound boomy.</p></blockquote><p></p>
[QUOTE="n2audio, post: 8549486, member: 540940"] It sounds like you're all caught up in associating big power ratings with big performance. That is never a good way to try to identify the worth of a piece of equipment. ALWAYS ignore peak/max power ratings. They are meaningless. RMS ratings are the ones that matter, and among the lower cost brands those are inflated too. Is your amp the XPR-540? They can rate it however they like. The fact of the matter is it has a pair of 25A fuses. Just so you know what it's actually capable of... It can't possibly produce much more than 500w rms. It is more likely to be in the 400w range. That's 100x4 at 2 ohms per channel. Probably ~75w x 4 if it's running 4 ohm speakers. Which Power Acoustik sub? The GW3? I believe that's only a dual 2 ohm sub which makes it a bit of an impedance mismatch with the Kicker. Do you understand DVC wiring? How is it wired? Parallel for 1 ohm (a problem for the amp)? Series for 4? What type of box is the sub in? They claim it can be ported or sealed, but it's very much a sealed box sub. Either way it can't play very low. When looking at a sub's frequency response plot, something relatively flat is the goal. The curve for that sub has an obvious spike in the 50-70 hz range which will make about any music sound boomy. [/QUOTE]
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