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jessie.dazzle wrote:

Could you clarify: Would you like to vent the rear chamber or increase its volume (or both)? This weekend I will try listening with the rear covers on the Lower-Mids slightly open...

Good question. I do not really know what to answer. I know what I would like to accomplish but I do not know how it should be called.

Conceptually I would like it to have a whole in the back chamber but the whole should be like it covered by a material with variable acoustic transparency: from completely none-transparent to very transparent. My presumption is that if I will be able to introduce a managed and precise drift of pressure from the back chamber then it will be near identical to the increase the back chamber its volume. In fact the managed drift might be even more beneficial (I presume) as it will increase it’s effectiveness with increase of volume of signal.

Sure, it is just hypothetic but when this weekend you will be playing with adjusting the size of the crack on your Lower-Mids you might hear what I would like to accomplish. BTW, share your thoughts if you do not like it and do not forget that you will loose a couple dBs of output .

jessie.dazzle wrote:

I have to admit, I'm a bit nervous about high-passing the S2 much lower than 700Hz at 6dB/octave.

It is exactly what I’m wondering. The 500-600Hz with second order does fine. Where would be the first order equivalent? This question consists off:

1) How much power the driver will be able to handle. From one side the aluminum cones ten to crack, from another side I drive it with no power: ½ 6C33C and ~14dB divider. I have no answer to it but I hear some dangers sonic effects when I drove the driver with 450Hz first order (25uF)

2) How much LF extension do I actually NEED from my Fundamental Channel? I mean where the quality of the Fundamentals Channel begin to be better or worse in relation to the Upperbass charnel? I would like do not finalize my judgment at this point as currently I have one dedicated Milq Channel driving both Macondo’s Fundamentals and Upperbass Channel. I presume that in a few weeks whwn I go one Macondo Channel to one Melquiades Channel then I will eliminate the S2’s and Fane’s coils talk to each other, not to mention getting rig the  speakers level filter from Lover MF Channel. When I do fully bi-amp then I will review the actual sound from both channels. Yep, it would like to have at that time the opportunity to play with the pressure drift/leak from the S2’s back chamber…

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