Audeze LCD-4z Review

September 10, 2019 § Leave a comment

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“Here is an example, Hugo 2 has a max voltage output of about 3 VRMS, so the current draw at 15 ohms will be 0.2A and the power output will be 0.6W. This enough to cause serious damage to ears with LCD-4Z whose sensitivity is 98db/mW, even if the listening at half the volume (1.5V), LCD-4Z would be very loud with a lot of headroom to spare. Now compare that with With LCD-4 with 200 ohm impedance, the current draw would be 0.015A and a max power draw of about 0.045W. Yes the LCD-4 would draw less current (an order of magnitude less), but it would not be anywhere as loud even at the maximum volume as the power into LCD-4 would also be an order of magnitude less. Though no one would listen even at maximum volumes, at normal listening levels the extra headroom is needed to accommodate the transients and dynamic range of music.”

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