Hi What HiFi magazine keeps stating that an underpowered amp is more likely to cause speaker damage than an amp which is over powerful and boy is this confusing me. The way I see it an over powerful amp could damage speakers e.g. 500w 8 Ohm per channel amp wired to 50w 8 Ohm rated speakers and whacking the volume up. I could also see an under powered amp being either strained or damaged trying to drive speakers of a higher rating e.g. a 50w 8 Ohm amp driving or trying to drive speakers rated for 200w 8 Ohm or even the harder 4 Ohm. How could an amp of say 50w 8 Ohm damage speakers rated at 200w 8 Ohm? Surely the amp would just struggle to drive them, not drive them at all or be damaged itself trying to drive them. I find this a little confusing has What HiFi have never explained or tried to justify there reasons for this so often repeated statement, well if they have I've never seen it. So could someone take the time to give a brief explanation of what the magazine is trying to say before my head explodes?