Speaker Efficiency and Durability?
Answers: Those "ohm" ratings are more for your amp. A more "durable" and "efficient" amp could feel a 4 ohm speaker. And a less durable and updated amp would require an 8 ohm speaker.
Speaker efficiency is documented as "sensitivity" ratings and measured contained by "dB" (decibals). A three dB increase makes a speaker TWICE as well-run. For example, a speaker with an 89 dB sensitivity rating wishes TWICE as much power as one with a 92 dB rating.
As far as durability, how much power your speaker is rate at can give you an model of how much abuse it can fiddle with. But what most people forget is that too LITTLE power destroys speakers. Turning your amp up historic two-thirds gain to get the volume you want is what kill speakers faster than anything else.
If it's not loud enough, buy a bigger amp, more rationalized speakers or both.
JSF. Finally, somebody who understands!
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