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Older Activity
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Today, 02:40 AM
takitaj has been doing some baffles and other items for us. He charges by how much machine time, but that is totally dependent on what the...
12 replies | 509 view(s)
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Today, 12:25 AM
If you need something to meet that ribbon, you'll want a midwoofer of about 6" or less.
But if you only want to use the ribbon as a "super...
10 replies | 172 view(s)
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Yesterday, 10:46 PM
The problems you're going to have with large diameter drivers going to high frequency are numerous. The most obvious one is that as frequency goes...
10 replies | 172 view(s)
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Yesterday, 09:19 PM
I don't use this software, but if you were able to select a 4th order L-R transfer function then you should not need to enter the Q - that has...
1 replies | 50 view(s)
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Yesterday, 09:15 PM
This is probably the wrong thread for this discussion, and I don't really have the time, or these days, the interest to get into a long discussion,...
29 replies | 482 view(s)
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Yesterday, 03:14 PM
There's no way to offer a quote without some idea of the number of holes, the size of the piece, etc.
12 replies | 509 view(s)
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Yesterday, 03:10 PM
Hi Jay,
I noticed that you mentioned a bit of "bloom" in one of your comments. If you gave the mid/tweet a bit higher XO point, it would tend to...
10 replies | 308 view(s)
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80 replies | 2185 view(s)
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05-17-2013, 09:53 PM
Then Dave, I would challenge you to actually research this and you will find that mathematcially a passive radiator system does indeed roll-off...
29 replies | 482 view(s)
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05-17-2013, 07:17 PM
I recognized your post was a joke, I didn't get taken in by that.... I was just responding to Dave's Post.
29 replies | 482 view(s)
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05-17-2013, 05:54 PM
With a port it is as you decribe, "as the frequency approaches zero, the phase delta approaches 180", but not with passive radiators. In this case,...
29 replies | 482 view(s)
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05-17-2013, 05:18 PM
Huh? You lost me. How would passive radiators equate to dipole? A passive radiator subwoofer is purely monopole, especially since the radiators can't...
29 replies | 482 view(s)
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05-16-2013, 11:43 PM
The Byzantium would fit in this category.
Dayton RSS315HF-8, ScanSpeak 15W4531 Revelator mid, Dayton RS28A, Acoustic Elegance 15" Passive...
26 replies | 1192 view(s)
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05-16-2013, 11:08 PM
You're going to have some pretty sensitive speakers in a not overly huge room. I doubt you need boatloads of power. The subs you've picked may be...
12 replies | 391 view(s)
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05-16-2013, 09:34 PM
You can also get a big isolation transformer and simply convert to 120V and use the equipment you want even if it only comes in 120V.
12 replies | 391 view(s)
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05-16-2013, 08:33 PM
OK, you're box is large enough to make the dual APR15 work OK with the supplied weights. My box was going to be a lot smaller and I couldn't get them...
9 replies | 242 view(s)
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05-16-2013, 06:54 PM
Awesome Dave! I'm looking forward to seeing the completed project. Your creativity is always exciting to watch.
9 replies | 242 view(s)
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05-16-2013, 06:53 PM
I am curious about this build, Jay. Are you using one to two APR15's? What size cabinet did you choose? What amp?
I could make the SD12X work...
9 replies | 242 view(s)
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05-16-2013, 11:03 AM
Crappy pic, but here's a shot of the Byzantium XOs that I never bothered putting inside the cabs.
39 replies | 1071 view(s)
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05-15-2013, 10:52 AM
Check here Guy.
We were having fun with the primer. It's actually a plain jane gray, but we dyed it to tweak the painter. He's the one who...
80 replies | 2185 view(s)
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05-15-2013, 03:03 AM
Wolf, obviously you didn't read the text. They're off getting paint now. That's primer. I would never paint speakers that color, ever. :p
...
80 replies | 2185 view(s)
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05-14-2013, 11:14 PM
I replaced the link with uploaded pic.
80 replies | 2185 view(s)
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05-14-2013, 11:14 PM
That thing had to be as heavy as those bathtub size speakers I posted!!!
80 replies | 2185 view(s)
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05-14-2013, 11:07 PM
Love the tub! Nice bathroom!
80 replies | 2185 view(s)
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05-14-2013, 11:06 PM
Sawdust making complete. They're off to the body shop getting a paint job.
80 replies | 2185 view(s)
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05-14-2013, 05:58 PM
Quit cursing Edison!!!
Blame TESLA. No one gets power from an Edison invention.
Done with my geek rant. :p
110 replies | 4104 view(s)
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05-14-2013, 04:50 PM
I listen to them most often without a sub, with good response to 40Hz in my room and moderate levels. However, adding the sub and getting the bottom...
32 replies | 1068 view(s)
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05-14-2013, 02:19 PM
Good pics go a long way, but I don't know that you'd have to open them up and show the innards.
6 replies | 112 view(s)
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05-14-2013, 11:13 AM
We use the 70-10D crossed at 3000Hz regularly. Measured distortion is well below the 1% level at a 1W input. They do perform better than ribbons of...
13 replies | 518 view(s)
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05-13-2013, 09:14 PM
OK, I'll put you on the list. ;)
(Everyone wishes they never posted in that thread).
32 replies | 1068 view(s)
- Date of Birth
- November 18, 1960 (52)
About dthomas
- Location:
- Dallas, TX
- Occupation:
- Engineering Consultant
Dave
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