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<blockquote data-quote="Scarenius" data-source="post: 551230" data-attributes="member: 555987"><p>Amp ratings at normal volume (in my experience)</p><p></p><p>Example 1: Legacy LA120 240 watt amplifier</p><p></p><p>Take the rated power:</p><p></p><p>Divide by the number of speaker outs(2): 120watts</p><p></p><p>Divide by half for nominal power: 60watts</p><p></p><p>Divide by Ohms(4) : 15watts</p><p></p><p>Divide for amp efficiency, which will NEVER be 100%, in this case, around 70%: <strong>10.5watts!</strong></p><p></p><p>OMG You never saw that coming!! I tested this peticular amp, and it did around 12 watts.</p><p></p><p>Example 2: Power Acoustik ov2 1200</p><p></p><p>Add the numbers on the fuses and multiply by 10 (600)</p><p></p><p>divide by number of channels(2): 300</p><p></p><p>Divide by 2 for nominal power: 150watts!</p><p></p><p>At normal volume, and 65% gain mine does around 60 watts per channel. If I give it hell, it does 474.6 per channel, which is 175 watts higher than advertised. This was tested with a multimeter, not load resistors and sinewaves, don't quote me.</p><p></p><p>Never assume just because you have a 4000 watt amplifier that you're getting 4000 watts. It's all relative.</p></blockquote><p></p>
[QUOTE="Scarenius, post: 551230, member: 555987"] Amp ratings at normal volume (in my experience) Example 1: Legacy LA120 240 watt amplifier Take the rated power: Divide by the number of speaker outs(2): 120watts Divide by half for nominal power: 60watts Divide by Ohms(4) : 15watts Divide for amp efficiency, which will NEVER be 100%, in this case, around 70%: [B]10.5watts![/B] OMG You never saw that coming!! I tested this peticular amp, and it did around 12 watts. Example 2: Power Acoustik ov2 1200 Add the numbers on the fuses and multiply by 10 (600) divide by number of channels(2): 300 Divide by 2 for nominal power: 150watts! At normal volume, and 65% gain mine does around 60 watts per channel. If I give it hell, it does 474.6 per channel, which is 175 watts higher than advertised. This was tested with a multimeter, not load resistors and sinewaves, don't quote me. Never assume just because you have a 4000 watt amplifier that you're getting 4000 watts. It's all relative. [/QUOTE]
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