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<blockquote data-quote="Ivan Beaver" data-source="post: 56912" data-attributes="member: 30">Re: lighten up some subsI would not jump so fast.i remember years (decades) ago when I attempted to do the same thing.&nbsp; A friend of mine had some Peavey W cabinets that had a square magnet stamped frame Eminance woofer in them.&nbsp; I was a big JBL guy at the time and insisted that he would be better off if he put a JBL 2225 in them.&nbsp; The best they had at the time.So we did just that-put a JBL2225 in one anc then compared it to another one that had the Eminance.No contest.&nbsp; The Eminance outran the JBL easily.&nbsp; louder-and deeper.I was stunned.&nbsp; How could that be?&nbsp; I am quite sure in a front loaded design the results would be different.&nbsp; But the HORN (that is the KEY tha tyou seem to be missing here) was designed around that driver.Just sticking in a &quot;better&quot; driver does not always result in better performance.I know a number of people who have tried to &quot;improve&quot; on the Keele W design of many years ago with a single 18&quot; driver JBL K151.&nbsp; Since that is a &quot;bass guitar&quot; speaker-people often think that by putting in a &quot;subwoofer&quot; driver the performance will get better.&nbsp; In most cases-not so.Horns are a very different animal-and very driver specific.&nbsp; I would nto trust ANYBODY whos say they can just stick a &quot;better&quot; driver in a horn and get better performance.&nbsp; Especially a salesperson.&nbsp; Unless I had MEASURED data-no way.I am not saying that you couldn&#039;t find a better driver for the cabinet-there are often a number of different drivers that can be used.&nbsp; But without SPECIFIC knowledge of which driver would work best-you are simply guessing and hoping at best-with NO evidence to back up any claims.As others have said-swapping drivers in a front loaded box is generally no big deal-but that is not what we are dealing with here.</blockquote>

[QUOTE="Ivan Beaver, post: 56912, member: 30"] Re: lighten up some subs I would not jump so fast. i remember years (decades) ago when I attempted to do the same thing. A friend of mine had some Peavey W cabinets that had a square magnet stamped frame Eminance woofer in them. I was a big JBL guy at the time and insisted that he would be better off if he put a JBL 2225 in them. The best they had at the time. So we did just that-put a JBL2225 in one anc then compared it to another one that had the Eminance. No contest. The Eminance outran the JBL easily. louder-and deeper. I was stunned. How could that be? I am quite sure in a front loaded design the results would be different. But the HORN (that is the KEY tha tyou seem to be missing here) was designed around that driver. Just sticking in a "better" driver does not always result in better performance. I know a number of people who have tried to "improve" on the Keele W design of many years ago with a single 18" driver JBL K151. Since that is a "bass guitar" speaker-people often think that by putting in a "subwoofer" driver the performance will get better. In most cases-not so. Horns are a very different animal-and very driver specific. I would nto trust ANYBODY whos say they can just stick a "better" driver in a horn and get better performance. Especially a salesperson. Unless I had MEASURED data-no way. I am not saying that you couldn't find a better driver for the cabinet-there are often a number of different drivers that can be used. But without SPECIFIC knowledge of which driver would work best-you are simply guessing and hoping at best-with NO evidence to back up any claims. As others have said-swapping drivers in a front loaded box is generally no big deal-but that is not what we are dealing with here. [/QUOTE]

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