Originally Posted by Lorderl
Take it FWIW coming from a newb. Reading a bit between the lines of some post, words like "fine", "acceptable", tends to suggest less than enthusiastic number results in the mid-base range.
TBH, when I first heard of the 10hz tuning I was expecting 100db - 100.4db @10hz and the mid-base to be more inline/equal to the Cap1400. Nonetheless I'm sure i'll be totally happy with my 10hz Cap240ULF.
Originally Posted by chucky7
I think this is a very complicated issue, which isn't always easy to explain. But, you read what MKtheater said about high mid-bass SPL. How many of us really want to listen to any content at 130db?
And, how many of us will still have normal hearing a year from now if we do?
If a single Cap 2400 averages about 119db in the mid-bass frequencies outdoors, then it should average at least about 3db more than that indoors, due to boundary gain. And, those measurements were taken at 2m, so you should still be pretty close to 120db at a listening distance of 12' or 13'. (Indoors, SPL drops about 3db per doubling of distance.) 120db is Reference, even with an extra 5db factored in for the extra channels in an HT system. (115db peak volume for the LFE channel + 5db for subwoofer support for the other channels at 105db peak volume.) And, those are just peaks. Most content won't be nearly that loud.
Where it starts to get really complicated is in factoring in the effects of room gain. Different size rooms will have different amounts at different frequencies. In Chucky's room, for instance, if he gets 115db at 10Hz from his Cap 4000, at a distance of 12', then he is getting about 10db of room gain at 10Hz - a 3db loss from distance. (108 + 10 - 3 = 115)
The next place I think that the whole thing gets dicier is when we try to decide at what frequencies sound pressure levels are in equilibrium. And, I suspect that will depend somewhat on our individual perceptions. In theory, the Cap 2400 with the lower port tune, and the more modest mid-bass, may sound more in equilibrium than the earlier version with the 14Hz port tune. But, even with the earlier version, owners have the LFA (low-frequency adjust) feature to help balance the sound between mid-bass and low-bass.
FWIW, I think that numerical drag racing aside, either version of the Cap 2400 will be an excellent all-around performer, and there will be very little to choose between them.