Hi Wayne
I have replied about your shoot out several times.
I have asked how exactly you were going to compare the various units, for example, are you going to account for the various load impedance’s etc?, are you going to listen to the subs with full range music or subs alone?
Are you going to measure them too? If so, how?
You have not answered, perhaps your still working out the details.
The reason the impedance question matters to me is I have a new box which is only 20 cu/ft exterior dim, but a single unit has over 101 dB 1W1M (measured @ 10 meters, 100W in half space) sensitivity down to about 30 Hz.
But, it is a real 8 Ohm load.
For example, driven with 2.8 Volts, your computer model has a very similar Voltage sensitivity and response shape even though your Impedance curve looks more like a 2 ½ Ohm load or a little less, most of the time and so, the 2.8V reference used in the model is actually significantly more (3 or 4 dB) than 1 Watt.
On the other hand, if what was being measured was how loud it went, then I wouldn’t care about Voltage sensitivity vs efficiency, just that you had a “big enough” amplifier and a proper measurement mic and setup, but again there is little info about “what” your doing technically.
On your sub shootout web site one might get the impression that the issue is which is the biggest, heaviest sub of all, where my interest is more in which has the most output for its size or low cutoff.
Also, you would be more likely to draw live sound people if you had more of the gear people are familiar with to compare against, particularly some vented box subs.
Some element of the marketplace is willing to consider that the “emperor may have new cloths” and an honest side by side comparison will generally reveal that reality one way or the other.
If your trying to get something going in live sound selling plans or what ever for your larger sub, get some of what most of the market is using or familiar with to listen to side by side.
There really are some horrid sounding, very popular products in common use but until people can hear how much difference there really is side by side, they have no idea what they are missing, trust me, we are building a nice business on sound quality.
Contrast your 12pi to those "big name" products if you want to hear how successfully your product performs and drum up interest.
The lack of technical test information thus far, combined with the fact that this is the first sub shootout to be held / organized by someone promoting a product / design / web site / web forum / line of kits, suggests there is the chance for bias.
Until there is some specific information about how (technically) your going to compare the systems, or, until there is more interest towards getting some of the more popular live sound subwoofers in for comparison, I am not inclined to suggest our speakers or personnel be diverted from current sales / demo opportunities.
Cheers,
Tom Danley
Danley Sound Labs