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Search: Keyword(s): ; Posts Made By: MKtheater
Forum: DIY Speakers and Subs   09-29-2016, 04:47 PM
Replies: 51
Views: 687
Posted By MKtheater
Even if all the speakers sound the same the...

Even if all the speakers sound the same the bigger dynamic soundstage from the big boys makes it worth it!
Forum: DIY Speakers and Subs   09-29-2016, 10:52 AM
Replies: 51
Views: 687
Posted By MKtheater
So you crossover where and how do the Polars...

So you crossover where and how do the Polars look? What drivers?
Forum: DIY Speakers and Subs   09-29-2016, 09:20 AM
Replies: 51
Views: 687
Posted By MKtheater
I want to try the BA 750 so bad but the problem...

I want to try the BA 750 so bad but the problem is there are no crossovers for it and I am not very good at that part of building.
Forum: DIY Speakers and Subs   09-26-2016, 11:02 AM
Replies: 24
Views: 654
Posted By MKtheater
I use the processors test tones to set trims and...

I use the processors test tones to set trims and then measure with REW to set the MV level. I just run a -10 dBfs sine sweep. If I have the MV on -10 dB then I look for a sweep of 85 dB and you...
Forum: Subwoofers, Bass, and Transducers   09-26-2016, 07:56 AM
Replies: 4,666
Views: 151,151
Posted By MKtheater
If you guys heard my room would be telling me I...

If you guys heard my room would be telling me I am nuts but we already know that. The front wall is built great and I don't need to change it, the rear subs were built crappy IMHO and just wanted to...
Forum: Subwoofers, Bass, and Transducers   09-25-2016, 09:24 PM
Replies: 4,666
Views: 151,151
Posted By MKtheater
It will be a 16 cubic foot box tuned at 10.9 hz...

It will be a 16 cubic foot box tuned at 10.9 hz in theory. It always works out lower in room. As long as I get 5 hz I am good. The enclosures the SIs are in s one big box and these will be 4...
Forum: Subwoofers, Bass, and Transducers   09-24-2016, 07:46 AM
Replies: 4,666
Views: 151,151
Posted By MKtheater
They measured similar on the low end with the...

They measured similar on the low end with the extra x-max favoring above 30hz.
Forum: Subwoofers, Bass, and Transducers   09-23-2016, 08:07 PM
Replies: 4,666
Views: 151,151
Posted By MKtheater
The UM-18 is more like a 28mm xmax driver and the...

The UM-18 is more like a 28mm xmax driver and the Cap is 30mm. You can see the cap S2 results and minus 5 dB or so to get a Cap S1 vs the UM18 which would be about a dB at 10hz.
Forum: Subwoofers, Bass, and Transducers   09-23-2016, 01:33 PM
Replies: 4,666
Views: 151,151
Posted By MKtheater
Well I have two Cap4000ULF type subs already with...

Well I have two Cap4000ULF type subs already with my Si drivers but I want to make them bigger and much better braced. Ports and drivers will all be facing the seats. It will be a slot port as...
Forum: DIY Speakers and Subs   09-23-2016, 12:38 PM
Replies: 190
Views: 4,507
Posted By MKtheater
For me all this started when I went to my first...

For me all this started when I went to my first awesome cinema and wanted to experience what I just saw and that includes the volume. I discovered thx and just went from that. Now I just adjust the...
Forum: Subwoofers, Bass, and Transducers   09-23-2016, 10:50 AM
Replies: 4,666
Views: 151,151
Posted By MKtheater
Yes first time with the UM18. I have not ordered...

Yes first time with the UM18. I have not ordered anything yet except my Jasper jig. I am going to actually build a proper box and not wall types of enclosures for the rear subs. 16 cubes per...
Forum: Subwoofers, Bass, and Transducers   09-23-2016, 07:00 AM
Replies: 4,666
Views: 151,151
Posted By MKtheater
Ok, changes are coming because I am bored and...

Ok, changes are coming because I am bored and want to build something. I am building 4 10hz tuned UM18s for my rear subs powered with the IPR2 7500 and the front wall will get 4 more or the same 4...
Forum: DIY Speakers and Subs   09-22-2016, 11:49 AM
Replies: 3,659
Views: 186,106
Posted By MKtheater
I don't need to change anything just wanted to...

I don't need to change anything just wanted to build something. I have an extra peavy 7500 lying around so figure why not. I have two undersized boxes for my rear subs now and they extend to 7hz...
Forum: DIY Speakers and Subs   09-22-2016, 10:37 AM
Replies: 3,659
Views: 186,106
Posted By MKtheater
I am using the same basic design with the ports...

I am using the same basic design with the ports on bottom running up the back. It might turn out to be a modeled 10.9hz sub but in room most likely 7-8hz. .
Forum: DIY Speakers and Subs   09-22-2016, 10:35 AM
Replies: 3,659
Views: 186,106
Posted By MKtheater
More like a single driver Cap4000 ULF in 16...

More like a single driver Cap4000 ULF in 16 separate boxes. I am replacing the rear 4 Si 18HT with these and then adding them to the front wall. I will change the port of the wall for the same tune....
Forum: DIY Speakers and Subs   09-22-2016, 09:15 AM
Replies: 3,659
Views: 186,106
Posted By MKtheater
When I say Marty sub I mean the same design so it...

When I say Marty sub I mean the same design so it will look like a Marty slot ported sub. It will be bigger.
Forum: DIY Speakers and Subs   09-22-2016, 08:24 AM
Replies: 27
Views: 828
Posted By MKtheater
Very nice! Once you see the value in DIY vs...

Very nice! Once you see the value in DIY vs performance it is all over. There are some great PA speakers that are even cheaper.
Forum: DIY Speakers and Subs   09-22-2016, 07:41 AM
Replies: 190
Views: 4,507
Posted By MKtheater
Reference is just that, having a HT means you can...

Reference is just that, having a HT means you can listen at any level.
Forum: DIY Speakers and Subs   09-22-2016, 06:30 AM
Replies: 3,659
Views: 186,106
Posted By MKtheater
I am going to use the Marty cut sheet but alter...

I am going to use the Marty cut sheet but alter the slot port. 10hz tuning on models usually mean around a true 7hz tune in room(my case). I will build one to experiment on then I will have 16.
Forum: DIY Speakers and Subs   09-21-2016, 06:42 PM
Replies: 190
Views: 4,507
Posted By MKtheater
That is correct, signals are rarely 0dBfs so when...

That is correct, signals are rarely 0dBfs so when they do reach them it will be 105 dB peak per speaker. Btw guys reference at 85 dB is for large theaters, in small rooms it ranges from 77-79 dB for...
Forum: DIY Speakers and Subs   09-20-2016, 03:00 PM
Replies: 190
Views: 4,507
Posted By MKtheater
I used to have 109 dB sensitive mains at one...

I used to have 109 dB sensitive mains at one time, I don't think I even used a watt. I use 25 watts now.
Forum: DIY Speakers and Subs   09-20-2016, 02:35 PM
Replies: 190
Views: 4,507
Posted By MKtheater
Nice! You talk about balance but your 24hz and...

Nice! You talk about balance but your 24hz and under is out of balance with the othorns. The mains are fine as we hear those frequencies much better so you need more bass than the mains to sound...
Forum: DIY Speakers and Subs   09-17-2016, 07:56 AM
Replies: 3,659
Views: 186,106
Posted By MKtheater
You guys are nuts, that much bracing is not...

You guys are nuts, that much bracing is not nearly needed. I have two dual 18 inch ported subs and very little bracing with no stuffing and they sound and perform awesome. Now, I am jumping on the...
Forum: Speakers   09-16-2016, 07:13 AM
Replies: 12
Views: 270
Posted By MKtheater
http://i191.photobucket.com/albums/z127/spinefixr/...

http://i191.photobucket.com/albums/z127/spinefixr/IMG_01281_zps8eac4db6.jpg (http://s191.photobucket.com/user/spinefixr/media/IMG_01281_zps8eac4db6.jpg.html)


I changed my wall and now the DR...
Forum: Subwoofers, Bass, and Transducers   09-15-2016, 07:53 AM
Replies: 13
Views: 343
Posted By MKtheater
Just make sure the spl levels are the same from...

Just make sure the spl levels are the same from 15-100hz and the only difference is the ULF.
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