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Junior Varsity
Peavey SP4 speakers nackered, new baskets or magnets?
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<blockquote data-quote="Brian jojade" data-source="post: 67707" data-attributes="member: 211"><p>Re: Peavey SP4 speakers nackered, new baskets or magnets?</p><p></p><p>The 15" drivers in the current SP4s are rated at 500 watts continuous power. The listed crossover spec between LF and HF is 1800hz. The spec sheet doesn't list where the crossover point to the lower speaker is, but you stated its at 250hz. So, if you're sending an audio signal that is heavy in the 250-1800hz range, all of that power is being dissipated by the mid speaker. It's not magically controlled by the crossover. If you sent 1000 watts of 1K tone, 1000 watts (roughly) will pass through the crossover to that speaker. Little to no power will be sent to the low or high speaker.</p><p></p><p>On Peavey's spec sheet, they say that their power ratings are determined by sending a 20hz-20Khz pink noise to the fully functional speaker. This evenly is distributing the power to the components of the speaker. If you reduce the frequency range that eliminates one of the speaker components, the power dissipated by that component no longer happens. If the same amount of power is still applied, the other components have to take over.</p><p></p><p>Essentially, with this speaker, it's possible to blow up the drivers with any amp that produces more than 500 watts. Difficult with normal music programming, but possible.</p></blockquote><p></p>
[QUOTE="Brian jojade, post: 67707, member: 211"] Re: Peavey SP4 speakers nackered, new baskets or magnets? The 15" drivers in the current SP4s are rated at 500 watts continuous power. The listed crossover spec between LF and HF is 1800hz. The spec sheet doesn't list where the crossover point to the lower speaker is, but you stated its at 250hz. So, if you're sending an audio signal that is heavy in the 250-1800hz range, all of that power is being dissipated by the mid speaker. It's not magically controlled by the crossover. If you sent 1000 watts of 1K tone, 1000 watts (roughly) will pass through the crossover to that speaker. Little to no power will be sent to the low or high speaker. On Peavey's spec sheet, they say that their power ratings are determined by sending a 20hz-20Khz pink noise to the fully functional speaker. This evenly is distributing the power to the components of the speaker. If you reduce the frequency range that eliminates one of the speaker components, the power dissipated by that component no longer happens. If the same amount of power is still applied, the other components have to take over. Essentially, with this speaker, it's possible to blow up the drivers with any amp that produces more than 500 watts. Difficult with normal music programming, but possible. [/QUOTE]
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Peavey SP4 speakers nackered, new baskets or magnets?
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