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The above charts show that the typical speaker with a sensitivity of 88 dB requires 1024 watts just to get to 118 dB! A more efficient speaker (example here is our KLF-30) requires just 64 watts to hit those levels of live music and Home Theatre. Therefore, the amount of amplifier power that a person needs is determined by the efficiency of the speaker that person is using plus the desired dB levels he or she wants to be able to produce. Other variables which impact the choice of amp power are the size of the listening room, the absorption characteristics of the wall and floor surface materials and the distance between listener and speakers. In a smaller room and with high efficiency speakers, 50 watts may be enough to provide full dynamic range. In a large room with low efficiency speakers, even 500 watts may not be enough. Higher speaker efficiency always helps deliver the most from whatever power you choose.]]> how-much-amplifier-receiver-power-do-i-need Wed, 21 Nov 2108 20:19:31 EST