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post #211 of 400 Old 05-19-2014, 12:09 PM
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Cool!

Can you post exactly what you did on the mini? I'd like to try it in my room. My current response looks a lot like your before graph.

thanks!
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post #212 of 400 Old 05-19-2014, 12:55 PM - Thread Starter
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Quote:
Originally Posted by carp View Post

Cool!

Can you post exactly what you did on the mini? I'd like to try it in my room. My current response looks a lot like your before graph.

thanks!

The before graph was when I finally got the hang of the minidsp. That was my "flat" response that I got after tuning. It sounded great, but I wanted more chest pounding bass to go with it. The first thing that I do is run audyssey and then start on the minidsp. Then I raised the eq on the minidsp in those areas. Of course it sounds really simple but it takes quite a few sweeps until I am satisfied with the graph. I also took out the filter that I previously put on the low end and that allowed the 5-8hz area to come up a little bit. If you run out of filters on the minidsp output you can use the input signal filters as well, but I try not to use too many filters on top of audyssey's applied filters. Also, I have dynamic EQ on and I always watch movies at a certain volume so I tuned my subs at that volume and to right before the amp starts to clip on the S2. So basically, the most I can get out of my subs safely. After all tuning, I test the movies that tax my subs the most. Even though Underworld Awakening only has 30hz scenes, it is my first movie that I test and demo on. The giant Lycan scene starts it off and then I move on to WWZ grenade scene and Tron and so on.

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post #213 of 400 Old 05-26-2014, 01:42 PM - Thread Starter
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Here is the new plan! I am going to purchase another amp and four subs to put behind each seat. I don't need anything crazy to go behind the seats so I am thinking 12" subs will be fine with an inuke 3000dsp. My goal will be to have all of this completed and tuned within two weeks.
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post #214 of 400 Old 06-01-2014, 06:06 AM
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What an awesome home theater.  Beautiful.

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post #215 of 400 Old 06-01-2014, 06:16 AM - Thread Starter
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What an awesome home theater.  Beautiful.

Thanks Taylor!

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post #216 of 400 Old 06-01-2014, 07:08 AM
 
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Quote:
Originally Posted by Pain Infliction View Post

Here is the new plan! I am going to purchase another amp and four subs to put behind each seat. I don't need anything crazy to go behind the seats so I am thinking 12" subs will be fine with an inuke 3000dsp. My goal will be to have all of this completed and tuned within two weeks.

Progress report ? smile.gif

What's subs are you using ?
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post #217 of 400 Old 06-01-2014, 07:15 AM
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I need to stop over and see what you're doing with your sound.
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post #218 of 400 Old 06-01-2014, 07:16 AM - Thread Starter
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Quote:
Originally Posted by Mfusick View Post

Progress report ? smile.gif

What's subs are you using ?

Yes........

I picked up four 1260W's and an inuke 3000dsp. Each seat in my theater will have their own sub behind it. I have two put together so far. I will have the other two put together by Monday and hopefully will have everything tuned before the weekend.

There is a mess of wires right now but they will be hidden.


Here is the amp. Again, excuse the wires.
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post #219 of 400 Old 06-01-2014, 07:42 AM
 
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Lol I was thinking 1260s and was going to recommend them. Nice value sub - total steal for $59. You going sealed ? I did both a sealed and ported box recently, the ported stomps hard any commercial sub I've heard under $500 easily. It's -3db at 17hz, and it cost me about $200 with plate amp. A total steal IMO. Those drivers have a lot for the price, and they go low and play flat so ideal for budget bass or as "filler" subs to even response at LP.
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post #220 of 400 Old 06-01-2014, 07:49 AM - Thread Starter
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Lol I was thinking 1260s and was going to recommend them. Nice value sub - total steal for $59. You going sealed ? I did both a sealed and ported box recently, the ported stomps hard any commercial sub I've heard under $500 easily. It's -3db at 17hz, and it cost me about $200 with plate amp. A total steal IMO. Those drivers have a lot for the price, and they go low and play flat so ideal for budget bass or as "filler" subs to even response at LP.

I agree. I wanted each seat to have their own bass shaker and why not do it while smoothing the bass response at the same time with subs. So far with just two running I am impressed even without eq.

They are sealed in 1.5 cubes, two per channel in parallel for a 2ohm load.
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post #221 of 400 Old 06-02-2014, 08:07 PM - Thread Starter
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I got the other two subs put together and started tuning this evening. I am at a good point right now and can pick up tomorrow and fine tune or even make some changes. It sounds great so far and a lot more impact for sure! There is no comparison between the four subs and the cap S2. That thing destroys them, but the four 12's are a nice compliment to each seat.





Look at this crazy chart! No way I am keeping the bass that hot! I was just playing around.
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post #222 of 400 Old 06-02-2014, 08:33 PM
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Originally Posted by Pain Infliction View Post

I got the other two subs put together and started tuning this evening. I am at a good point right now and can pick up tomorrow and fine tune or even make some changes. It sounds great so far and a lot more impact for sure! There is no comparison between the four subs and the cap S2. That thing destroys them, but the four 12's are a nice compliment to each seat.





Look at this crazy chart! No way I am keeping the bass that hot! I was just playing around.



Dude!! Nice frequency response from 200hz to 20khz holy sh*t man. Mine is very similar but has issues between 200 and 400hz using 1/12th smoothing on the omnimic.

Ha, love the hot bass too!! Fire up a couple classic scenes and I dare you not to grin from ear to ear with that curve!
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post #223 of 400 Old 06-02-2014, 09:07 PM
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^ how does it look off axis?

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post #224 of 400 Old 06-03-2014, 05:30 AM - Thread Starter
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Dude!! Nice frequency response from 200hz to 20khz holy sh*t man. Mine is very similar but has issues between 200 and 400hz using 1/12th smoothing on the omnimic.

Ha, love the hot bass too!! Fire up a couple classic scenes and I dare you not to grin from ear to ear with that curve!

Thanks carp! I am really happy that I got almost a flat response up to 20k hz. I have seen some really expensive speakers not able to get that high.

i did demo my favorite scenes last night and it was crazy! The inuke dsp doesn't let me tune below 20hz so that small dip between 10hz and 20hz will get fixed with the minidsp on the S2. I want my bass flat down to 5hz and maybe I will do a house curve. I am really liking the ultra low clean bass right now. I use to only get that from one side of the room and now it is evened out more.

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^ how does it look off axis?

These measurements are taken from the MLP. The subs are all on the back wall and the mic is at ear height. No matter how you turn the mic, some of the speakers will be off axis. Even with the mic facing the back wall and just measuring the subs, some of the subs will be 45 degrees off axis and a chair or multiple chairs in the way. The other speakers will be anywhere from 90 to 180 degrees off axis. I never tune at the speaker, only at the MLP because that's where it counts.
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post #225 of 400 Old 06-03-2014, 05:34 AM
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Okay, how the hell are you connecting 4 subs to a 2 channel amp with Speakon connectors? I know you said in parallel and I know a lot of people on here do it the way you are doing it, but how exactly is it being done?
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post #226 of 400 Old 06-03-2014, 05:40 AM - Thread Starter
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Okay, how the hell are you connecting 4 subs to a 2 channel amp with Speakon connectors? I know you said in parallel and I know a lot of people on here do it the way you are doing it, but how exactly is it being done?

I bought a 30ft speakon connector and cut it in half. I stripped back the wires to insert into the speaker terminals on the subs and then jumped + to + and - to - between two subs. Repeated for the other side. If you do it, just be sure to get the polarity right. I opened up the speakon connector to see what color wire was on what terminal.
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post #227 of 400 Old 06-03-2014, 06:50 AM
 
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You should exchange just a little bit of the low bass for a touch of 200hz smile.gif
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post #228 of 400 Old 06-03-2014, 07:52 AM - Thread Starter
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I am going to keep at it. This is just what I got done in a couple of hours last night. I will see what I can get tonight. My goal is to have it perfect by Thursday. Maybe even tonight!
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post #229 of 400 Old 06-03-2014, 07:54 AM
 
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Tonight. You are very close.
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post #230 of 400 Old 06-03-2014, 08:03 AM - Thread Starter
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Hopefully.



Here are some of the dsp settings I used. I had crazy peaks and nulls with each pair of 1260w's.

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post #231 of 400 Old 06-03-2014, 08:31 AM
 
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No doubt. It's a result of placement. Near the wall will always cause that.
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post #232 of 400 Old 06-03-2014, 11:17 AM
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Quote:
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I bought a 30ft speakon connector and cut it in half. I stripped back the wires to insert into the speaker terminals on the subs and then jumped + to + and - to - between two subs. Repeated for the other side. If you do it, just be sure to get the polarity right. I opened up the speakon connector to see what color wire was on what terminal.
Okay, so there is some actual effort involved. I saw what drivers you were using but I didn't see what kits you were using for the cabinets. Parts Express, DIY Soundgroup?
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post #233 of 400 Old 06-03-2014, 11:24 AM
 
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Those drivers are pretty flexible with cabinets. You could make your own, or buy premade. Even car audio boxes would work in a pinch. It don't matter if the box is a bit bigger or smaller, usually bigger is better.

Sealed boxes are also very easy to DIY. It took me 15 minutes to do my 17" sealed box, and in comparison my 24" ported took two weekends. Sealed is always easier.
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post #234 of 400 Old 06-03-2014, 11:55 AM - Thread Starter
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Those drivers are pretty flexible with cabinets. You could make your own, or buy premade. Even car audio boxes would work in a pinch. It don't matter if the box is a bit bigger or smaller, usually bigger is better.

Sealed boxes are also very easy to DIY. It took me 15 minutes to do my 17" sealed box, and in comparison my 24" ported took two weekends. Sealed is always easier.

Bingo!

JVoth is used car audio boxes. I could get two for the price of a flat pack and free shipping. I think I paid maybe 155 for all four and the were completely finished with nothing to do but wire it and drop a driver in.
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post #235 of 400 Old 06-03-2014, 03:30 PM
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Bingo!

JVoth is used car audio boxes. I could get two for the price of a flat pack and free shipping. I think I paid maybe 155 for all four and the were completely finished with nothing to do but wire it and drop a driver in.
I'll be damned. That does seem pretty simple. Got me thinking now.
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I'll be damned. That does seem pretty simple. Got me thinking now.

At $59 a pop you could also do a cool wall of them wink.gif 3, 5, 6, or 8 drivers could be nice biggrin.gif There was some cool design ideas in the DIY audio forum.
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post #237 of 400 Old 06-03-2014, 03:43 PM - Thread Starter
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^^^ yes, and to add to your comment, if these were my only subs, I would have a minimum of 8.

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post #238 of 400 Old 06-03-2014, 08:27 PM - Thread Starter
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This is what I got from using the minidsp on the cap s2 and the dsp on the inuke for the 1260w's. I tuned 2 subs for channel "A" and two for channel "B" on the inuke. I turned the gain up on one channel opposite side of the s2 for better balance.

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post #239 of 400 Old 06-14-2014, 08:29 AM - Thread Starter
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Guys, I have an addiction! Some of you have the same addiction as well, but I can't get enough of the ULF or bass in general. For this reason, I put together four more subs. All I have to say is........IT'S AMAZING! I have already tuned it and my bass response has finally got me to the point where I am super happy. Being though my theater is on the second floor in my house, the floor shakes like crazy to add to the effect.





I ran out of room in my rack so the two inukes have to go on top of the rack in the AV closet. Better that way anyways because the fans are loud.


Here is the chart after tuning. Looks a little bit better than before as far as being flat, but sounds way more intimidating! These are not max SPL charts, nor will I even attempt to do one. My house is already shaking like crazy and I don't really care how loud my setup will play because I only watch movies at -15 MLV.

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post #240 of 400 Old 06-14-2014, 10:25 AM
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Very cool!! Great job!

I'm inspired. Very soon, I will start my own 13.5 build thread as construction has begun, speakers ordered, and audio calibration expert is scheduled!!

Goodbye to a great audio and video genius and writer... JOHN GANNON. I enjoyed your friendship, wit and a nice long run we took around Indianapolis at CEDIA years back... and for buying my Runco 980 Ultra years back... you saved my ass! Rest in peace.
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