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Old 04-24-2011, 09:18 AM
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MaidenFan MaidenFan is offline
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Default Low-Impedance Speakers w/Cambridge Audio A1

Right, long time no post, just want some opinions from you lovely people

I'm considering upgrading from a pair of 15-year-old Kenwood LS28s (60W @ 6 ohms) to some Behringer Truth B2031Ps (150W @ 4 ohms).

The power isn't really important, as I'm not going to be driving them that hard (< 50% on the amp) but I'm curious about the Behringers' low impedance - the A1 states on the back of the amp that it supports 6 - 16 ohms (I'm assuming this is per channel, not total) - would the 2031s hurt the amp at all?

From what I've picked up elsewhere, lower impedance needs more power to achieve the same voltage (therefore power) so to get the same power out of my 2031s I'd have to drive the amp harder?

Or is my logic/understanding completely wrong? I'm open to being wrong

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Old 04-24-2011, 11:12 AM
saratoga saratoga is offline
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Low impedance means you'll need more current out of the amp, but at the same voltage you'll be much louder (power = v^2/impedance so lower impedance means more power per voltage). If the amp can't provide a lot of current, it might distort at high volume. But if you're not going to be pushing the amp that hard it probably doesn't matter.
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Old 04-24-2011, 07:09 PM
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The A1 is only 25 watts right? You might need a slightly more powerful amp.

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