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I would caution against this approach as described. It sounds like a good way to end up with the speaker that you happened to be listening to when you had a better week for other reasons. Of course, I do see some merit in longer listening sessions. If you do spend a week with each speaker, I...

Once you get above a certain price point, speakers are sold more on uniqueness and exclusivity than on actual accuracy or performance. It's best if they look like works of art, and have as little in common with traditional black rectangular boxes as possible, because the owners intend to use...

I'd say the problem isn't with the RAAL at all. I prefer wide horizontal dispersion paired with narrow vertical dispersion. A nice speaker will extend that characteristic lower in frequency, and avoid abrupt changes in dispersion. If someone designs a bad speaker using the RAAL, I would...

FWIW, I believe that blog post predates my discussion with SL. I was well aware of his position, but also his interest in the subject, which is why I reached out to him. I was surprised and honored that he replied (he didn't have to). Reading the blog now, it doesn't come off to me as though...

I tried to dig up an email exchange I had with Siegfried Linkwitz circa 2004 (+/- a year or two) regarding the audibility of phase distortion, but everything prior to 2007 is no longer available. In our exchange, he was not staunchly averse to the idea of phase distortion being audible in...

KEF is wrong to demonize high parts counts in passive crossovers. Considering each drive unit individually, they are approximately minimum phase devices, and the passive crossovers used to shape their power spectra are also minimum phase. By filtering a minimum phase device with a minimum phase...

The graph you posted doesn't show much noise before the impulse. Constant background noise will typically be visible there. You don't appear to have much of a reflection-free zone on the graph, even though the set-up looks like it should give you one. Is there acoustic treatment (Wool...

What's your reasoning for associating a Qts of 1.1 with a really high crossover?

I feel the exact opposite. That's why it's nice to have options. This is a great option for people who don't demand the widest dispersion. The measurements are really impressive. I understand it's supposed to be a cheap speakers, but as a DIYer, I have never put Electrolytic caps in any of...

To answer the question posed by the diagram, "NO". The proposed series 0.5-way circuit doesn't work. Both of those woofers will have the same current pass through them, and thus they will behave identically.

I propose plugging the problematic port to improve performance. The paucity of perceptible bass production paired with passband impurities compels us to dispose of the displeasure provided by the pesky port.

Nice project. Thanks for sharing. Any reason the mid is more offset horizontally than the tweeter is?

I don't like the idea of porting speakers at frequencies much above 50 Hz. Although you lower excursion near the porting frequency, excursion increases very rapidly below tuning. 40 Hz content is often the most demanding from an excursion perspective, since it's often recorded with high volume...

A single driver is not a point source. A point source has a negligible extent. While the ear is most sensitive in the midrange and lower treble from a magnitude perspective, the phase distortions caused by crossovers in that range are imperceptible to humans. It's at lower frequencies (80-500...

I agree that many expensive speakers aren't nearly as good as they ought to be. In fact, once you spend above about 3-4 grand on a speaker, there's probably an inverse correlation between price and performance. I think in that space, many are selling exclusivity more than anything else. In...

Do the people on this forum really not have the experience of a high end system revealing flaws with a recording that weren't noticeable on a lesser system? I do feel that sometimes those flaws end up being less forgivable than the issues with the lesser system that covered them up. As a...

I'm curious how you tested the software. From my reading, it sounds like Dolby was concerned mostly with placing sounds that were happening in isolation. For example, it would do a good job with a conversation between two people, one in the center and one on the right. Each person takes their...

The software I created in matlab (actually octave since matlab is expensive) doesn't run in realtime, and I haven't given any thoughts to a realtime implementation, until now. I could probably tweak it in a way that wouldn't hurt performance and would reduce the computations to be implemented...

Sounds like we're all set. Would you like to provide a piece of music to separate, or would you like me to pick something? I don't know what kind of music you might have been focusing on... I've been focusing on orchestral recordings.

My matlab script outputs 4 separate .wav files, which I usually load into audacity to try different level adjustments during the recombination process. I assume you have some type of DAW software, right? I believe Pro Logic decoders work very differently from what I've described, but I don't...