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<blockquote data-quote="FAM4LIFE" data-source="post: 6195194" data-attributes="member: 545838">I&#039;m looking at getting this sub and running it off of a Powerbass 1100.5(sub 500@2-ohms).&nbsp; I&#039;m looking at the effiiciency of the sub and I think I would need more than 500 watts.&nbsp; The sub has an rms of 1000wtts but it&#039;s dual 4-ohms and I&#039;m not looking to spend alot on an amp.Based on specs will I be fine with only 500watts?Am I wrong by saying the higher the efficiency, the less power is needed for maximum performance from a subwoofer?Model Number PRO 104 PRO 124Thiele/Small ParametersFs (free-air resonance, Hz) 32Vas / Liter / ft3 17.8 / 0.63Qts (total driver Q) 0.65Re (DC resistance, ohms) 5.9IMPEDANCE dual 4 OhmEfficiency (1W @ 1M, dB) 81 dBXmax (one way linear excursion, mm.) 24Model Number PRO 104Driver Physical DimensionSIZE 10&quot;Mounting depth (inches *) 7 - 1/2&quot;</blockquote>

[QUOTE="FAM4LIFE, post: 6195194, member: 545838"] I'm looking at getting this sub and running it off of a Powerbass 1100.5(sub 500@2-ohms). I'm looking at the effiiciency of the sub and I think I would need more than 500 watts. The sub has an rms of 1000wtts but it's dual 4-ohms and I'm not looking to spend alot on an amp. Based on specs will I be fine with only 500watts? Am I wrong by saying the higher the efficiency, the less power is needed for maximum performance from a subwoofer? Model Number PRO 104 PRO 124 Thiele/Small Parameters Fs (free-air resonance, Hz) 32 Vas / Liter / ft3 17.8 / 0.63 Qts (total driver Q) 0.65 Re (DC resistance, ohms) 5.9 IMPEDANCE dual 4 Ohm Efficiency (1W @ 1M, dB) 81 dB Xmax (one way linear excursion, mm.) 24 Model Number PRO 104 Driver Physical Dimension SIZE 10" Mounting depth (inches *) 7 - 1/2" [/QUOTE]

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