4krow
Seasoned Member
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IMAGINE WHIRLLED PEAS
Posts: 1608
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As expected, some things change as experiments continue. Let me start with a concept that I learned in photography. Simply stated, 'do as much in the field for the photo as you can, and then the darkroom'. To transfer this thinking to audio, it might read 'do as much acoustically as you can, and then the electronics'. Following this trail, I removed the BSC circuit from the speakers, and instead, employed an acoustic measure. Pretty simple really. Take a memory foam pillow, and cut it in half long ways. cut the remaining half into two pieces, leaving a shape that will have a hump rolling off one side. I will add photos later that will make this much more clear. Remember, the pillow usually has a neck support shape to it, and it's this shape we are using to create the rounded hump. Ok, so going on, each one of these pieces will fit on the 'shelf' of the ZOB in the rear, close to the driver, but not blocking the slot. The idea here that a wave guide for the bass is being created to increase the amount of 'blow' across the throat of the slot. Secondly, it will attenuate those frequencies above 300hz(I am guessing here). The effect is reduction in midrange, and some air. Most of my CD's have a harder edge in the midrange due to the fact that this system has much more resolution now with the 34I.3.. Yes, I know, the FRX2 has a switch that helps compensate for this, but this approach is somewhere in between the switch position being selected for a more closed sound or open sound. And there is a definite bass increase. Keep in mind that this all revolves around my little world and ears/room/preferences. But folks, if you are going for the status quo, that's your business. I have particular goals in mind, for my system...shouldn't we all?
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