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I haven't. I'll shoot him a message.

Sharing for those who might be interested. Greg was a guest on my channel last week where we discussed various topics from his approach in loudspeaker design (measuring and listening) to the DIY speakers he is using in his home at this moment. I don't monetize these "interview" videos.

In the audio realm we talk about “beaming”, “directivity”, “lobing” and “breakup” in speakers. But I find that few people understand what it means. So, I asked René Christensen of Acculution to join me and explain. In the video below, René breaks down the math and gives us practical examples...

I'm not one for bashing a product but I think "negative" reviews are necessary to: a) warn buyers b) better appreciate the good stuff *this has nothing to do with reviews here; just my opinion on the usefulness of reviews of poor performers in general*

Thanks, James. This one is obviously a known issue with many but I knew there were a LOT of people who not only weren't aware but don't really understand what we mean when we say "comb filtering" and "off-axis"... Those are the folks I wanted to make this video for. I'm happy to hear that it's...

Gene, you keep calling me "Eric" and I know you know better! lol Noted. I looked at my blocked comments and don't see them there. Feel free to try again.

I have data for this one on my site as well. :)

Also make sure you look at the other data I provide in my reviews (as well as the data James provides here on AH). As I said in the video, I left out some aspects, such as linearity, to focus on horizontal dispersion. The SVS, IIRC, has decent linearity and should take well to EQ so it's a...

I have been wanting to address this topic for a while. I've got a LOT of hours into this, from measurements to sound recordings to building the presentation. My hope is that it will provide insight into problematic designs and help people understand how to use objective data to get a better idea...

What do you mean "sound power isn't part of the SPIN"? It is. It's a weighted response of all angles. It's part of the CTA-2034 (aka: SPINORAMA). Generally, you can ignore it for a monopole speaker because as the frequency trends toward the HF you expect it to radiate more forward, droping...

LW = Listening Window SP = Sound Power Both look quite good.

^ Looks impressive.

Absolutely. I talked about this in the review.

FWIW, the reason I even had these speakers to test is because a member of this forum purchased them based on Robinson's glowing review and the member was left wondering wtf went wrong because he normally agreed with A.R.. He asked if I'd be willing to test them so he could maybe understand what...

I agree, having the full SPIN would be nice. BUT... I've been in James' shoes and done full spins on large tower speakers, so allow me to play devil's advocate. Doing this stuff is a huge PITA. As he said in the video Gene posted, James does provide SPIN data for smaller, more manageable...

I've got no horse in this race. I just found this comment funny. Especially after having seen James' in video and being able to hear him say that sentence in my head. :D :D :D

First off: Great job again, James. As for the performance, I'm not terribly impressed with the tower. Not at the price of $5200/pair. It's not "omg, no", but I'd have expected a bit more linearity (especially in the HF) at this price. The constant directivity with the off-axis notch...

Curious if you watched the video. Because I do agree. But in the real world, there are compromises made (particularly wrt spl vs linearity). And that's where the key difference can be drawn. Which is what I discuss in the video.

To be clear, I don't believe I said a speaker shouldn't have good linearity. My slide says that nonlinearity is OK for most HT setups since, with equalization and good DI, that you can take care of the majority of the nonlinearity issues. In a perfect world you wouldn't have to make these kind...

I agree. I think this is really true of: 1) Most center channel speakers of the MTM variety 2) Cheap bookshelf speakers with the V-curve