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1) Impedance is a combination of resistive (real component) and reactive (imaginary component) contributions 2) The reactance of a component varies with frequency 3) Resistive loads are easier for an amplifier to drive 4) Signal reflections occur when two components have mis-matched impedances (with an acoustical result generally described as "smearing" of the sound) 5) Variations in a speaker's impedance curve mean that mis-matches with the amp will almost certainly occur at particular frequencies - even if the amp is well matched to the nominal impedance of the speaker
Assuming that I have all of that correct, what I was trying to isolate from your statement above was whether a flat impedence curve necessarily means the speaker is primarily a resistive load and therefore easier to drive and a "bumpy" impedance curve means that a speaker is more reactive in nature and therefore harder to drive?
I realize that impedance peaks at particular frequencies indicate regions of increased reactance, but I wasn't sure what you could assume about the overall ratio of resistive to reactive. In otherwords, could the impedence curve be perfectly flat, but still dominated by the reactive contribution?
Is it as simple as reduced current demand = less thermal compression = better dynamics? If so, I still need the connection to impedance...
12"... @ 4' of cabinet.Dave
Your dimensions appear to yield the appropriate volume, but the intended cabinet will be a taller/narrower backward leaner housing all 3 drivers. I think these look better than a 2-piece speaker with a big square bass cabinet. In all of this, the project is moving veeeery slow. Until woofers arrive from TC sounds for testing, it's only a concept.
Aesthetically spoken, I guess the main issue is about the front firing 12".
I really need a rearward leaning speaker. I am open to suggestions in this regard.
I guess that for many technical/economical reasons , you don't want to go to a side firing woofer...
So, my better suggestion is to visually reduce the width by creating a black-painted surface, englobing the tweeter and mid, and widening towards the woofer; all the other parts could be clear veenered . All this, in conjonction with a few cutted angles.
I guess you are thinking of slanted front and rear baffles, with horizontal top and bottom...
but a simple parallelepipedic shape could be used if you use a little stand to lean the enclosure backwards; in such a way, no need of different angles than 90° to build the enclosure.