So, in reference to the Geddes quote above- on one hand, you have Earl, who has been around a good length of time. On the other hand, however, you have Greg Timbers and the entire rest of the JBL and Lansing engineering staff, both present and past, who had been working on horn designs for the greater part of 70 years, when they came up with the PT Waveguide. Unless my memory fails me, Geddes hasn't been alive that long...
Which one has the most experience chops, now?
I think the saying goes: "I can see farther, because I stand on the shoulders of giants"...
Regards,
Gordon.
Except on-axis, of course....Based on how the Summas sounded compared to the best I've heard from JBL (K2), I'm not sure I wouldn't trust Earl on this one.
Except on-axis, of course....
Nice little video on building the EconoWave crossovers. That should bring some new people into the camp.
Since my Barracuda is gone, I brought my Sunbeam home. It has sat in my workshop at the company for five years. Just needed a change of gasoline, and a new battery, and it runs great.
I don't know which end to E'Wave, the front or the back. What do you think?
I don't know but I bet it ends up being the best sounding Sunbeam ever.I don't know which end to E'Wave, the front or the back. What do you think?
Nice little video on building the EconoWave crossovers. That should bring some new people into the camp.
Since my Barracuda is gone, I brought my Sunbeam home. It has sat in my workshop at the company for five years. Just needed a change of gasoline, and a new battery, and it runs great.
I don't know which end to E'Wave, the front or the back. What do you think?
Yes. With respect to the shape of the cone, it's not used as a horn or waveguide in them; it's just an LE-20 tweeter stuck in the middle there.Regardless, is the LE14-C/ C38 low-end performance worth considering e-waving these things if the stock x-over and coax tweet are disconnected and the woofs just ran as LE14-A via the appropriate E-wave xover?
Affectionately....Nice job Chris! Hey you were doing great until you called our beloved JBL waveguide "cheapo".
"Let's get soldering!"Very cool video, Chris.
HA! It took you two hours to make your E'Waves, whereas Chris did it in four minutes. He's so speedy the camera couldn't keep up.I assume that the video is supposed to be glitchy and erratic on purpose but I had to watch it twice to make sure it wasn't a malfunction in the playback.
I'm on dialup.... ity:
Yup, 42.6 Kbps right now, it says. Downloadable videos, I just let 'em load in the background.Seriously?
Sometimes we don't know the woofer polarity, especially in a project like E'Wave, in which builders may be using many different ones. The masonite Advents, for example, are marked with a black "X" next to one of the driver terminals; what's that mean? Also, with many vintage JBL's, which have red and black pushbutton terminals, the polarity is reversed.I think this is a good time for Zilch to explain, for the wired masses, how to determine woofer polarity with a battery, to aid in getting correct crossover summation.
Stuff a chevy 350 in it and forget about the wave stuff