Reply to thread

Message

<blockquote data-quote="MiniVanMan" data-source="post: 2935157" data-attributes="member: 573252">It&#039;s a generalization, and no different than saying you get double the power going from 4 ohm to 2 ohm with an amplifier.&nbsp; There are variables in every situation, but they&#039;re exactly that, variables.&nbsp; Variables affect everything.&nbsp; There&#039;s no magic product that takes all variables out of the equation.&nbsp; The same variables that affect an 8 ohm driver, will affect a 4 ohm driver.&nbsp; There are certain constants though, and they can be planned for.&nbsp; With those constants we can come to some fairly valid conclusions.&nbsp; It&#039;s an exercise in compromise when dealing with audio drivers.&nbsp; So while it may not be always true that a 3 db gain in efficiency will be realized, there will be a gain.&nbsp; If only 2 db, or whatever.Unfortunately, marketing departments have too much say in how a speaker will be presented to the public, and how it should be engineered.&nbsp; An 8 ohm speaker will not sell on the general market because of the fallacies, and myths surrounding car audio.&nbsp; &nbsp; Even though it has definite advantages.It&#039;s much more lucrative to put a girl in a bikini in front of a car holding a speaker and have a caption saying &quot;MORE POWER&quot;, than having a fat, sweaty engineer holding a speaker and a tube of KY saying, &quot;MORE EFFICIENCY&quot;.There are advantages to 4 ohm drivers, they&#039;re just not the advantages that car audio marketing departments really care if you know.&nbsp; Nor do they want to explain them.So, the argument, is, and what started this, was not to look at power, and impedance, but rather efficiency.&nbsp; That just because it would take 200 watts at 2 ohms wouldn&#039;t make it louder than a 4 ohm driver at 100 watts, or 8 ohm at 50 watts.&nbsp; That is doing the basic math.&nbsp; Yes there are assumptions in there, and I&#039;ve explained those assumptions, but the basic point is to get away from thinking in the terms of more power, less impedance.</blockquote>

[QUOTE="MiniVanMan, post: 2935157, member: 573252"] It's a generalization, and no different than saying you get double the power going from 4 ohm to 2 ohm with an amplifier. There are variables in every situation, but they're exactly that, variables. Variables affect everything. There's no magic product that takes all variables out of the equation. The same variables that affect an 8 ohm driver, will affect a 4 ohm driver. There are certain constants though, and they can be planned for. With those constants we can come to some fairly valid conclusions. It's an exercise in compromise when dealing with audio drivers. So while it may not be always true that a 3 db gain in efficiency will be realized, there will be a gain. If only 2 db, or whatever. Unfortunately, marketing departments have too much say in how a speaker will be presented to the public, and how it should be engineered. An 8 ohm speaker will not sell on the general market because of the fallacies, and myths surrounding car audio. Even though it has definite advantages. It's much more lucrative to put a girl in a bikini in front of a car holding a speaker and have a caption saying "MORE POWER", than having a fat, sweaty engineer holding a speaker and a tube of KY saying, "MORE EFFICIENCY". There are advantages to 4 ohm drivers, they're just not the advantages that car audio marketing departments really care if you know. Nor do they want to explain them. So, the argument, is, and what started this, was not to look at power, and impedance, but rather efficiency. That just because it would take 200 watts at 2 ohms wouldn't make it louder than a 4 ohm driver at 100 watts, or 8 ohm at 50 watts. That is doing the basic math. Yes there are assumptions in there, and I've explained those assumptions, but the basic point is to get away from thinking in the terms of more power, less impedance. [/QUOTE]

Verification