Time-Phase-Alignment- Point Source-Classical Musicians

Vandersteen has been chasing time and phase and much more since 1977…. not everyone’s cup of tea but many professional use them in a variety of ways…. Enjoy your journey and congratulations on your successful DIY build…lovely cabinets - enjoy the music in great health ,

jim

Roy,

The $6k Pearls attracted my attention as well. I am anxious to 

listen to a full range driver speaker. Nice work!

Duevel Bella Luna: 2way point source with Omni dispersion. Wonderful.

My speakers are very good at 3D imaging/soundstage, but I had Thiel 1.6es in my system for a bit and there was something special about what they did in that realm that I attribute to being time/phase coherent.  Just my take. 

My speakers are very good at 3D imaging/soundstage, but I had Thiel 1.6es in my system for a bit and there was something special about what they did in that realm that I attribute to being time/phase coherent.  Just my take. 

Thiel 1.6es were (are) great speakers.....A real bargain when you find them used in perfect condition...

Always here for DIY!

A kind of interesting take too is the Woofer-Assisted Wide Band.

It is essentially a 1 driver speaker down to about 200 Hz or so, when a conventional crossover brings a woofer into the mix. Another way to think about it is a 2-way with a very low crossover point.  Many feel it has all the benefits of a 1 driver speaker, but with great bass.

I wonder if you can measure time alignment outside of an anechoic chamber? Certainly don’t see ASR or others reporting any measurements if this is supposed to be important. I also observe many box speakers claiming time alignment in their design including Gershman, Wilson’s etc.

I wonder if you can measure time alignment outside of an anechoic chamber?

Yes, very easily, for the most part even using basic measurement tools like REW or OmniMic. Using an impulse response you would see the tweet and mid impulse fairly easily and even the woofer somewhat until the room reflections show up in the measurements.

You can at least see if a speaker is time aligned or not, but gettting precise measurements would be difficult due to room reflections.  Take a look at figure 7 in this review:

Not sure if this is applicable or not, I seem to remember Decware making some single point speakers for fair money.  

I've had Pearl speakers for the past few months and can support all of your remarks about point source speakers.  I find the "realism" and detailed soundstage quite amazing compared to any of the many speakers (most far more expensive) that I have had over the years... 

While the effect is similar, their sound stage imaging is far better that any electrostatic or membrane speaker I have listened to. As for those who think a small speaker won't be able to reproduce base well (as I was when I took the plunge to order a pair), everyone who I invite to listen is amazed (as I am) not only in the quantity, but in the quality of the base they produce. The tuned port they have designed produces excellent base.

Bravo to you for exploring the DYI possibilities inspired by the Pearl speakers!  Please keep us informed of your progress.

I feel that I get very good results using my DEQX HD4 DSP to time and phase align my triamplified fully horn loaded DIY speakerts.