Building Watt/puppy clone

It's not worth cloning! The Focal tweeter rings terribly in the audible frequency range, and the midwoofer's acoustic polarity is reversed to sum in phase with the other drivers (not good design practice at all). I mean, SUV's are hugely popular right now too, but they're a glutanous waste of steel and oil resources! BUILD A CLONE OF A BETTER SPEAKER WITH A BETTER TWEETER...

Glad to hear that you think you know what you're talking about, Tommy. Indeed I have no troble hearing the ringing, and it's right smack in the middle of the range that a CRT monitor's noise leaks into recordings, ALL TOO OFTEN. I have no troble hearing that either. IF YOU'D HEARD A REALLY GOOD SOFT DOME TWEETER, PERHAPS YOU WOULDN'T BE SO QUICK TO ASSMUE THAT THE W/P IS SUCH A GOOD BUY, even used. I agree, an original design is always best. THAT'S WHY I HAVE SEVERAL IN THE WORKS CURRENTLY. Happy listening...

That's killer funny!....What do you mean? Are you asking what recordings have this noise in them? The list is very long, and these mostly "live" pop/rock ones come to mind first. Pink Floyd: "Pulse"; Seal's first; Peter Gabriel: "Secret World Live"; GNR: "Live Years"; Roger Daltry's "Music of Pete Townsend and The Who". I've even heard it on a few classical LP's from the golden age, but I forget which titles, right at the moment. The point is, I hear this range fine, and don't want it smeared by a tweeter, even if the CRT noise is not present.

And the only difficult thing about sub/sat mating (besides if the sub has no remote control) is if you have somebody like a wife telling you where things need to be put in your listening room. I don't have that problem. If you don't have a dedicated listening room, then you're not dedicated to audio. You don't need to spend money and time on it unless you're serious. It's about as silly as buying an SUV...Or a sports car (and obeying speed limits on the open road).

Gee Tommy, you could be my long lost Great Grandfather...just kidding! I'm a young baby at 31. What you are describing is ultrasonic, usually above human hearing. I figure I can hear about the same as the average audiopile my age, perhaps a tad over 20 kHz. I'm sure that dog whistles produce plenty of fractional harmonics that are below the fundamental, and this is what any human would be hearing if they heard anything at all, with one of these whistles. Somebody should measure one.

Paul, yes. I thought I already covered this above. My Maggies and a test CD say I can hear a 20 kHz signwave, referenced to a 1 kHz sinewave at about 79 dB on a radio shack SPL meter, in the listening seat. Of course, the 1 kHz tone sounds pretty loud at 79 dB, and the 20 kHz tone sounds several dB quieter, but I can still hear it easily, along with the accompanying intermodulation waveforms that must accompany such a waveform, in the redbook format. The 20 kHz tone sounds much "dirtier" than even the 19 kHz tone, though. The 18 and below ones sound very clean on my CD50.

The guy at Zalytron has an attitude problem. I like the best soft dome tweeters, like the Revelator and Esotar.

I like the large gauge North Creek inductors very much. Michael Percy needs his own website. I can buy all the MDF I like, it's cheap...the problem is building these things. Takes a lot of time, but it'll be worth it. I hope to get someone to manufacture a couple of these some day.

Oh, you're very welcome. I didn't realize you hadn't heard of them.