What speaker power to match with my amplifier
ZiViS
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Anonymous user -
Anonymous user -
Hello, I would like to know the power of a pair of speakers on a BLX 200 amplifier of 200 Watts 4 channels?
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5 answers
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On Leboncoin, a private seller says "Mc Farlow BLX-200: 4x 50Watts or 2x 100 Watts" but given the size of the device, I seriously doubt it can deliver that much. Plus, Mc Farlow, like Fusion, is in the same range in terms of quality, it's worth nothing.
An amplifier has a stability impedance of 2 ohms. Low-end brands often use peak watts to entice young tuners. Let's assume the BLX-200 is: 200w peak~2ohms, it would then give 50w rms~2ohms, or 4x12.5w or 2x25w rms at 2 ohms "the same power as a car radio at 4 ohms." That’s very little at 4 ohms... I don't know what you want to amplify with that other than tweeters or original car speakers. -
Well, actually I tried it on hi-fi speaker systems, as soon as I turn on the amp it trips, but I think it's 40W minimum and 60W maximum (I tested it with 2 speakers on 2 channels out of 4).
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If you connect this amp to 8-ohm hi-fi speakers, you risk burning out the amp and the speakers as well...
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What impedance speakers do I need? And how many watts?
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Many 4-ohm speakers are, at best, slightly less powerful than the amplifier, like the original car speakers which are generally very low power.