To be fair to Ted, I was the one who eventually pushed for radical development of lower mass power-trains using new materials and shallow profile cones, with all the inherent production, operational and financial risks. I think these drivers are more suitable for music than multichannel movies…. BTW, sounds like a marketing, but I am not associated with MarkAudio except as a customer and I am indeed impressed at the technology and capabilities of this driver. As long as the XO is outside the telephone band, the single driver sound is intact. This breakup will show as resonances which will result in peaks and troughs in the frequency response, as can be seen in any driver, not just wide range units.
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The Alpair 12P is the largest full-range driver produced by Markaudio. Then we run it through a flea-power SET that adds a wad of even-order distortion and has a weak top. Also, its Impedance peak at resonance is 60 Ohm and relatively flat, should suite allot of lower power tube amps.
The concept is more flexible, allowing for less critical box designs; And the greater use of a wide variety of box types. I said it without listening, for sure only after a good AB test. It is used to repair a poorly work done by the fullrange designer mid and hi’s in excess.
Alpair 12P (Single Driver)
Those are my reference speakers. Datasheet These an astounding full range driver.
Well, for the reasons stated. This has some drawbacks.
Alpait fine, but understand that is fake. Optical illusion, even on the other photos of the same 12p driver… not tight at all…. I believe there is a big future for single point source, single cone full-range emitters.
Most of them get big, many outrageously expensive, a few bizarre looking. To be fair to Ted, I was the one who eventually pushed for radical development of lower mass power-trains using new materials and shallow profile cones, with all the inherent production, operational and financial risks.
Traditionally, high SPL drivers with short coils have a short usable X, relying on the design of the box to extend LF emissions by wave lengthening. This driver gives me more excitement. Do you know if there is a metal cone version on the horizon or if it lost out to paper? Going through the normal operational range, the resistance profile continues to be proportional to the loads, then stiffens near the limits of the excursive load. Its not designed to be a replacement for a woofer, but it is designed to more accurately emit non-linear LF loads that drivers with short coils cannot.
If you go to any of the shows, the rooms that initially wow you are not always the ones you stay in the longest. Can’t read vertical scales! Comments 8 Trackbacks 0 Leave a comment Trackback.
MarkAudio Alpair Speaker Drivers | H i F i D U I N O
Anything bigger and it’d not make it up this far. The spider of the 12p is an improvement over the spider design in the original Alpair 12 alpaiir itself was a unique design for the driver. I’m not hearing vocal sibilance, shout, or other nasties Ted and me had our good times and our not so good times, sadly our association was not destined to last. Several major design changes make this Alpair radically different from the original in terms of its operation and performance.
I would like to know about your real loaded horn design process if you have the time. Low mass drivers present more design challenges, one being isolation between the power-train and its mounting frame. This series of exchanges was prompted by your posting graphics for both and the comment that “it looks like both use the same kind of paper for the cone” which I personally doubt very much.
Both are very good and a favourite with many DIYers today. The Alpair 12P is the latest generation of the Al;air 12 series. A FR with a xover yet had all the limitations from a sole driver low power etc and no more had the benefits harmonic integrity, fast transients etc.
How would it hold up in the flesh?