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Forum: Ported Subwoofer Build Projects   04-22-11, 11:26 AM
Replies: 64
Views: 9,991
Posted By mgboy
Re: Mach 5 Audio "IXL 18.3", One-Off-Non-Production Sub Build

A 15" driver with roughly the same xmax as an 18" equal in output? Maybe in the upper freq. Certainly not down low.
Forum: DIY Speakers   04-11-10, 10:41 AM
Replies: 3
Views: 2,511
Posted By mgboy
Re: Automatic SPLtrace program?

That is it. Thank you John! This and REW make my life a joy.
Forum: DIY Speakers   04-09-10, 04:51 PM
Replies: 3
Views: 2,511
Posted By mgboy
Automatic SPLtrace program?

I believe it was here (but it might have been AVS, or the PE Discussion board) where someone introduced a program he made that accomplished the same goal as SplTrace but was automatic, based on color...
Forum: DIY Speakers   04-06-10, 09:32 AM
Replies: 6
Views: 1,088
Posted By mgboy
Re: New experiment!

Template

http://img13.imageshack.us/img13/1379/0404101752a.jpg

Four..legs?

http://img693.imageshack.us/img693/4194/0404102045a.jpg

Coming together well.
Forum: DIY Speakers   04-03-10, 11:55 PM
Replies: 6
Views: 1,088
Posted By mgboy
Re: New experiment!

No, for this experiment I'll be using DX25's since I had 3 laying around, lol.
Forum: DIY Speakers   04-03-10, 10:59 AM
Replies: 6
Views: 1,088
Posted By mgboy
New experiment!

http://img59.imageshack.us/img59/9633/0402101536a.jpg

Even have some bracing in the bottom bit of the cabinet.

http://img176.imageshack.us/img176/8881/0402101535b.jpg

Here's where the...
Forum: DIY Subwoofers - General Discussion   09-07-09, 07:29 PM
Replies: 14
Views: 4,148
Posted By mgboy
Re: Elemental Designs E3.12 vs Exodus Shiva

If it was a 13 in. like some of ED's other subs, it might compete with a lesser xmax, but not if it has a comparable SD.
Forum: DIY Subwoofers - General Discussion   08-08-09, 11:34 AM
Replies: 12
Views: 2,108
Posted By mgboy
Re: Sealed or Ported?

You should probably tell your "expert speaker builder" friend that he is no expert, at all. Unless he wants to qualify his statement without any generalizations but, as been said here - there is no...
Forum: DIY Subwoofers - General Discussion   07-23-09, 11:45 AM
Replies: 31
Views: 8,819
Posted By mgboy
Re: Are 21" drivers any good?

*hint* Fast or slow means they don't really know what they're talking about.
Forum: DIY Speakers   06-10-09, 04:14 PM
Replies: 33
Views: 15,605
Posted By mgboy
Re: Mark Audio Drivers!!!

All that measurement shows is that is was clipping the entire measurement. Try turning the volume down, or the meter level up.
Forum: DIY Speakers   04-24-09, 01:59 PM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

No it's okay. Um, well I had to scoot the speakers further away from the wall, and thus only about a meter away from the LP. The subwoofer did not move, only turned the gain down, and the crossover...
Forum: DIY Speakers   04-23-09, 07:08 PM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

Alright I set the meter to C weighted, took the calibration file off, and then checked the "C weighted meter" box. Ran another sweet and had to turn down my sub 1/4 to a 1/3 of the way to get it...
Forum: DIY Speakers   04-21-09, 04:37 PM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

I'm measuring inside, at my listening position.

What would a waterfall tell me?

How would putting it a foot off the ground take that much out of it, especially in the 100-500 range?

IMO,...
Forum: DIY Speakers   04-21-09, 02:25 PM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

As you can see, it would seem the woofers have room to breath, and yes that's the port a bit below it.

I also got.. frustrated? and duct taped the box seems to make sure there weren't any air...
Forum: DIY Speakers   04-20-09, 09:38 PM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

Here's an updated graph. I took 15 inches off the bottom, taking off .4 ft^3, raising the tuning 10 or so hz, AND "chamfering" the woofer hole. Being as the box was already constructed, I couldn't...
Forum: DIY Speakers   04-18-09, 10:17 AM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

I just talked to my father about it, (he's the one who helped me with the boxes and whom I ramble about speaker stuff to, because he'll listen) and he knew what I was saying about the chamfering...
Forum: DIY Speakers   04-17-09, 03:20 PM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

http://img145.imageshack.us/img145/3665/celestionsl6snearfield.jpg

http://img4.imageshack.us/img4/5418/celestionsl6slposition.jpg

First image is a celestion SL6S nearfield, the second is at the...
Forum: DIY Speakers   04-17-09, 01:31 PM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

http://img9.imageshack.us/img9/4755/fullwithcrossover6inche.jpg

http://img2.imageshack.us/img2/4144/fullwithcrossoverlposti.jpg

Top is the RS180 + RS28 in box, 5-6 inches away. BSC, crossover,...
Forum: DIY Speakers   04-17-09, 06:22 AM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

I've had the woofers a few weeks, and they've been broken in thoroughly (almost xmax for a few hours) and had over 100 hours of music put through them as med-high levels. They should be moving more,...
Forum: DIY Speakers   04-16-09, 09:08 PM
Replies: 18
Views: 2,091
Posted By mgboy
Re: Room, box, or measuring?

http://img16.imageshack.us/img16/2554/driverportnoboost.jpg

http://img18.imageshack.us/img18/2480/driverportwithboost.jpg

Top picture is the driver, and port without the the boost. The bottom,...
Forum: DIY Speakers   04-16-09, 07:56 PM
Replies: 18
Views: 2,091
Posted By mgboy
Room, box, or measuring?

http://img16.imageshack.us/img16/7760/noboostrs180.jpg

http://img206.imageshack.us/img206/2330/12dbboostrs180.jpg

The top image is my 1.2-3 ft^3 towers with one RS180 woofer (with matching...
Forum: DIY Subwoofers - General Discussion   04-11-09, 12:34 PM
Replies: 21
Views: 10,214
Posted By mgboy
Re: 15" TC-2000 14.5Hz port tuned 7cf box build...

It looks so. I wanna know how you managed that?!
Forum: GTG, Clubs, Associations and Audio Fests   03-08-09, 10:17 PM
Replies: 55
Views: 16,105
Posted By mgboy
Re: Another subwoofer GTG, Southern Style

I'm interested, but with school - it'd have to be on the weekend. I'm in Chattanooga, so not a far drive. I'm not sure if I'd have anything to show - depending on the time, a smalled 3 ft^3 sealed...
Forum: DIY Subwoofers - General Discussion   03-05-09, 02:43 PM
Replies: 49
Views: 4,580
Posted By mgboy
Re: Need a sub for my shop / movies

I've got that same amp (the 240 watt, no boost) hooked up in my room that I'm looking to replace. It's never been dropped, or clipped so it's in great condition.

Would you be interested in buying...
Forum: DIY Speakers   03-04-09, 09:59 AM
Replies: 19
Views: 3,108
Posted By mgboy
Re: Another Newbie!!!

Got any measurements?

What drivers did you use, and what crossover points did you use?
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