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I'd be more than happy to have a substantive conversation with you, as apparently you have a great deal of experience with Quads. Maybe you consider me to be "the enemy" because of my association with a "rival" brand. I've owned four pairs of Quads, three of them purchased AFTER I became a...

Stereophile's measurements of the Impact Monitors show very different off-axis behavior for the array in the horizontal and vertical planes. The horizontal off-axis behavior is smooth which to me suggests a good blending of the drivers in the horizontal plane, but the vertical off-axis behavior...

I agree with you that speaker/room interaction matters a great deal, but it is not haphazard. Speaker/room interaction is predicted by the speaker's off-axis response, modified by the room's surfaces. As long as the room isn't overly bright or overly damped, the off-axis response tells us a...

Contributing to the claimed (and ime genuinely improved) longevity of SoundLab's PX panels is the very high structural rigidity of the plastic lattice that the stators are attached to, which prevents this type of failure mode. Earlier generation SoundLab panels were not as rigid and there were...

Yes, I am under the impression that Sanders Sound has zero issues with loss of conductive coating. I don't know what coating SoundLab uses, but I've never had loss of conductive coating be an issue for myself or any of my customers in twenty-five years or so. [Edited to add: Current...

Depending on what that target "certain directivity" is, and how much of the spectrum it applies to, various manufacturers use various techniques in pursuit of the directivity and other characteristics they prioritize. Shaded arrays (that is, arrays where not all of the elements get exactly the...

The Impact Monitor's response looks the most interesting, the horizontal off-axis being imo quite good. The off-axis measurements are normalized which makes it a little bit harder to interpret them. The apparent roughness off-axis in the top end may actually be smoother than the on-axis...

Check with @amirm about the weight before you commit to a purchase. The Double Impacts are 118 pounds, and that's a lot of weight to hoist up onto the Klippel's stand.

I seriously doubt John Atkinson gets paid enough to do ^^^THAT^^^.

Two limiting factors of the Klippel NFS system and loudspeaker WEIGHT and SIZE. The speaker needs to be light enough that it can be safely lifted onto the platform, and its dimensions need to fit within the range that the Klippel's arm can accommodate. Arm extensions may be available, assuming...

My understanding is that @John Atkinson kept using the same measurement technique largely for the sake of consistency, so that measurements made recently can be directly compared with measurements made long ago. Correcting on-axis frequency response measurements below the baffle-step frequency...

This is what a paradigm shift looks like. Notice the double-take about six seconds in:

A couple of decades ago a company named Evett & Shaw made a high-end desktop speaker called the "Elan". I think that's the same "Evett". "Shaw" was Clayton Shaw, who later founded Emerald Physics, and then Spatial Audio, and now Clayton Shaw Acoustic Lab.

I realize a contract that protects reviewers is probably necessary if the Tekton event is indicative of what "the new reality" is, and I am NOT saying such a contract is a bad idea. It is probably a very good idea. But as a small manufacturer who may someday have something reviewed, it makes...

Imo it usually works and works well for most people even from well-off-centerline seats. But if someone has a significant hearing imbalance (one ear hears significantly better than the other), then having a dedicated center-channel speaker would usually be better. Imo there are two worthwhile...

. Production cost is the hurdle that keeps me from building what I would consider to be a decent horn speaker in the same size/performance/price category as the Tekton "Perfect Set" speaker that I linked to. This is the closest I ever came, fourteen years ago, and it was almost a thousand...

We thank you for using your superpowers for good.

Got it, and I totally understand. I'll spare you and this thread the word salad I was preparing to serve!

My initial instinct was similar to what I suspect yours is. But I now think the radiation pattern of the Beveridges is among the most intelligent I've encountered (assuming the preferred setup geometry is used), and I say this as a dealer for the competition, SoundLab. I can explain why I now...

My understanding is that the preferred placement was on opposite side walls (when feasible), facing each other. The one time I heard Beveridges, set up by Harold's son Rick, this is how they were positioned. The radiation pattern was (supposedly and presumably) 180 degrees wide, and when set up...