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Older Activity
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Yesterday, 11:53 PM
After going through various designs like vented, sealed, passive radiators, and slot ports, I have decided to go ported with those hugh Precision...
21 replies | 745 view(s)
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Yesterday, 11:45 PM
Yes, I think with my limited knowledge that would work. I just hook up the DMM to the positive side and negative side on the amplifier and measure...
8 replies | 127 view(s)
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Yesterday, 09:35 PM
If you're using ARTA just set your time marker and take your measurements for both drivers, then use the measured phase. You don't need to extract...
9 replies | 4827 view(s)
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Yesterday, 08:26 PM
Thanks, I'm not at the stage where I need it immediately but thanks for the free software links.
8 replies | 127 view(s)
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Yesterday, 08:25 PM
But any program that yields a flat response with a high order roll-off will sound poor in a car with its cabin gain. It is possible to design it with...
8 replies | 126 view(s)
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Yesterday, 08:08 PM
I've got a signal generator in both speaker workshop an WinISD Beta but no oscilloscope. I found one on the internet USB type at a cost of $198.
8 replies | 127 view(s)
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Yesterday, 07:28 PM
I need an electrical engineer to find out what slopes the HP and LP sub-woofer use. I have no knowledge of tracing out schematics to find out. The...
8 replies | 127 view(s)
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Yesterday, 07:21 PM
I agree 100%
8 replies | 126 view(s)
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Yesterday, 07:09 PM
This is a purely subjective comment so take it as just that, but in my two decades+ of car audio (I was an IASCA certified judge) I have never heard...
8 replies | 126 view(s)
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Yesterday, 06:48 PM
Building curved sided enclosures sucks! If these were rectangular they would be ready for in box measurements now. As it sits I only have one side...
26 replies | 1048 view(s)
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Yesterday, 06:32 PM
There are two types of subwoofer called 6th order. One is a typical vented box that uses an underdamped second order active high-pass filter to...
8 replies | 126 view(s)
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Yesterday, 06:23 PM
Ideally, if you are planning to use Speaker Workshop or Soundeasy then you should just take your measurements using that software, you can even use...
9 replies | 4827 view(s)
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Yesterday, 05:18 PM
roger over on that 4". I appreciate it very much.
Paul
9 replies | 227 view(s)
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Yesterday, 02:48 PM
Nope- the box response will be different with the DCR change. It affects Qes and therefore Qts. It will affect tuning of the box, and maybe even box...
65 replies | 2312 view(s)
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Yesterday, 02:46 PM
I was told they are having issues with the website this year, and the list is not able to be posted.
Wolf
5 replies | 1739 view(s)
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Yesterday, 09:03 AM
Yup. #2 would work quite well.
5 replies | 138 view(s)
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Yesterday, 04:12 AM
An 8" x 31" would keep the velocity at 135 watts to .07 mach. A 6" x 16" would keep the velocity at 135 watts to .13 mach which is still acceptable....
20 replies | 479 view(s)
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Yesterday, 02:30 AM
Now you need to resim your box response to factor in that change of DCR.
Later,
Wolf
65 replies | 2312 view(s)
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Yesterday, 01:40 AM
Your impedance is sitting about 2.5 ohms at 90 Hz. For 4 ohm nominal, my own best fit dips to no lower than 3.3 ohms. I think yours will tax some...
65 replies | 2312 view(s)
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Yesterday, 01:13 AM
I just modeled it up and it doesn't look much different to me than the vented too. Plus I would have to redo my whole sketchup of the sub-woofer...
21 replies | 745 view(s)
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06-16-2013, 11:23 PM
Thanks for the input. Someone responded to my other thread and recommended two passive radiators so I'm checking that out since i'm still in design...
20 replies | 479 view(s)
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06-16-2013, 10:54 PM
I will be present.
Wolf
5 replies | 1739 view(s)
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06-16-2013, 09:35 PM
Thank you very much, very kind of you. I may change the design using passive radiators. Some guy just came up with a model that showed a bit better...
21 replies | 745 view(s)
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06-16-2013, 09:31 PM
I did not think about using passive radiators. I actually built a 3 way using a Dayton PR an it won 3rd place in the mid price category. So my...
6 replies | 245 view(s)
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06-16-2013, 08:18 PM
Well, there are benefits to having the midrange higher. One of them is that as you increase the height of the midrange, you lower its floor bounce...
33 replies | 1326 view(s)
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06-16-2013, 07:59 PM
My plan includes covering the 18" sub and ports with that old fashioned wheat and brown mixture to cover them both.
paul
20 replies | 479 view(s)
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06-16-2013, 03:50 PM
Ron, if you already have Microsoft Office, you probably can create PDF files. From Word, just hit FILE, "save as" PDF.
33 replies | 666 view(s)
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06-16-2013, 02:03 PM
;) Keep an eye on those flights. PM me when you find one.
146 replies | 3302 view(s)
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06-16-2013, 01:59 PM
What you need are bigger heat sinks for the amps. Either that or some low speed, super quiet fans.
24 replies | 486 view(s)
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06-16-2013, 08:54 AM
Only one RS225-8 per cabinet.
26 replies | 1048 view(s)
About Paul K.
- Biography:
- Worked in medical device industry as engineer (BSEE) then regulatory manager.
- Location:
- Hilliard, Ohio
- Interests:
- Building speakers (DUH!) and listening to symphonic music. Like pro football and NBA.
- Occupation:
- Retired in 2003, now figuring out how to justify building more speakers!
Total Posts
- Total Posts
- 2,867
- Posts Per Day
- 1.02
Visitor Messages
- Total Messages
- 3
- Most Recent Message
- 05-08-2011 05:19 AM
General Information
- Last Activity
- Yesterday 07:02 PM
- Join Date
- 09-28-2005
- Referrals
- 1
12 Friends
Showing Friends 1 to 10 of 12
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