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<blockquote data-quote="Ivan Beaver" data-source="post: 57602" data-attributes="member: 30">Re: lighten up some subsThere is A LOT more at play than a simple single number.I remember when one light bulb turned on-decades ago.I was running a lot of JBL scoop cabinets.&nbsp; I was running JBL E140&#039;s in them because they had a higher sensitivity than the JBL 2225.But after a number of people told me the 2225 would work a lot better in the cabinet (even though the sensitivity was lower).So I bought a 2225 and tried it.&nbsp; It ran circles around the E140 (in the intended passband of the cabinet (below 150hz).Then I started looking at the specs (limited as they were-especially back then) closer.&nbsp; And I noticed that the E140 (which is a bass guitar speaker) was rated at a higher freq range the the 2225 (which is a sub speaker).AH HA&nbsp; It was not important to look at the specific freq range.Exactly what Bennett said.And a single number tells nothing what the speaker actually does-simply that it will produce that SPL-at some freq.&nbsp; There is one major manufacturer who has a 2x18&quot; sub that has a rating that is really high-and is stated as Sensitivity 20-20Khz.&nbsp; But if you look at their published data-you will see that this peak SPL is around 1800Hz.&nbsp; Not exactly in the sub range.Just like you have to look at the ACTUAL freq response of a loudspeaker-not just looking&nbsp; at the simple numbers.&nbsp; Look at THE CURVE.ALSO-different speakers respond differently in different cabinets-especially horn cabinets.&nbsp; In a front loaded cabinet-there is not as much &quot;going on&quot; in terms of how the driver and the cabinet interact.Not all drivers can be horn loaded.And yes there are all kinds of situations/products out there in which the cabinet with a lower rating will actually be louder.&nbsp; it depends on how they were measured-and what the marketing dept does to the numbers and so forth.</blockquote>

[QUOTE="Ivan Beaver, post: 57602, member: 30"] Re: lighten up some subs There is A LOT more at play than a simple single number. I remember when one light bulb turned on-decades ago. I was running a lot of JBL scoop cabinets. I was running JBL E140's in them because they had a higher sensitivity than the JBL 2225. But after a number of people told me the 2225 would work a lot better in the cabinet (even though the sensitivity was lower). So I bought a 2225 and tried it. It ran circles around the E140 (in the intended passband of the cabinet (below 150hz). Then I started looking at the specs (limited as they were-especially back then) closer. And I noticed that the E140 (which is a bass guitar speaker) was rated at a higher freq range the the 2225 (which is a sub speaker). AH HA It was not important to look at the specific freq range. Exactly what Bennett said. And a single number tells nothing what the speaker actually does-simply that it will produce that SPL-at some freq. There is one major manufacturer who has a 2x18" sub that has a rating that is really high-and is stated as Sensitivity 20-20Khz. But if you look at their published data-you will see that this peak SPL is around 1800Hz. Not exactly in the sub range. Just like you have to look at the ACTUAL freq response of a loudspeaker-not just looking at the simple numbers. Look at THE CURVE. ALSO-different speakers respond differently in different cabinets-especially horn cabinets. In a front loaded cabinet-there is not as much "going on" in terms of how the driver and the cabinet interact. Not all drivers can be horn loaded. And yes there are all kinds of situations/products out there in which the cabinet with a lower rating will actually be louder. it depends on how they were measured-and what the marketing dept does to the numbers and so forth. [/QUOTE]

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