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post #3721 of 3742 Old 08-18-2015, 05:16 PM
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Time for an update, new card calc'd attached.....I'm gettin' there.
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post #3722 of 3742 Old 08-18-2015, 06:19 PM
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Quote:
Originally Posted by lovinthehd View Post
Time for an update, new card calc'd attached.....I'm gettin' there.
You are in a large room like I am. I like the addition of the Clarks, it will save you the headaces of a gazillion sub, lol.
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post #3723 of 3742 Old 08-22-2015, 08:22 AM - Thread Starter
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Quote:
Originally Posted by lovinthehd View Post
Time for an update, new card calc'd attached.....I'm gettin' there.
I think you fat fingered the ULF calculator somewhere...

Here's what I calculated your ULF Card to be:

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post #3724 of 3742 Old 08-22-2015, 08:25 AM - Thread Starter
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I don't believe we have many (if any) RA Home Theaters or new Captivator 1400 theaters on the ULF charts yet...

Come join and post your ULF cards!
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post #3725 of 3742 Old 08-22-2015, 10:33 AM
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Any data on the Mini Marty which is just a tad bit smaller than the full Marty? I will finished the second Mini Marty this week.
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post #3726 of 3742 Old 08-22-2015, 01:19 PM - Thread Starter
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Quote:
Originally Posted by derrickdj1 View Post
Any data on the Mini Marty which is just a tad bit smaller than the full Marty? I will finished the second Mini Marty this week.
No, but would like to get the Marty's on here.

If anyone can run a sim comparing to the SI in a sealed 4cf box (same enclosure size as data-bass), I can estimate.
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post #3727 of 3742 Old 08-25-2015, 11:17 AM
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Why a seal SI box since the Marty and Mini Marty are ported? I will download WinDis and see how far I get trying to do a sim.
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post #3728 of 3742 Old 08-25-2015, 06:14 PM
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Quote:
Originally Posted by derrickdj1 View Post
Why a seal SI box since the Marty and Mini Marty are ported? I will download WinDis and see how far I get trying to do a sim.
The ULF score card is based on the SI HT18D2 in a sealed box. See first post here.
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post #3729 of 3742 Old 08-25-2015, 07:10 PM - Thread Starter
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Quote:
Originally Posted by derrickdj1 View Post
Why a seal SI box since the Marty and Mini Marty are ported? I will download WinDis and see how far I get trying to do a sim.
Quote:
Originally Posted by coolrda View Post
The ULF score card is based on the SI HT18D2 in a sealed box. See first post here.
As coolrda said...

If you run both the si sealed at the marty, I'll take the difference between sims to estimate what the marty would be relative to josh's testing of the si.
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post #3730 of 3742 Old 08-25-2015, 08:11 PM
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Using the SI 18HT you gain 9 dB at 20hz, 12 dB at 16hz, and anything lower will be distortion as the x-max is off the charts so I did not take notice at the 12.5hz and 10hz. When I did all those sims it was based on the SI being able to reproduce 5hz at x-max sealed so if you HP the low stuff you will gain 3 dB on the sealed with double the power.
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post #3731 of 3742 Old 08-25-2015, 09:40 PM
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Here's what I came up with using WinISD on WindowsXP. Red is MiniMarty, Blue is MartyCube and Yellow is Ref Sealed. The two Marty boxes were using data and subs listing on the Martysub FAQ.

Max SPL@1M Frequency 10/12.5/16/20/25/31.5/40/50

MiniMarty 89.3/99.4/112.4/115.5/116.6/117.4/117.9/118.3

MartyCube 87.6/97.1/104.5/109.1/112.7/115.4/117.1/117.9

Ref Sealed 94.5/98.2/102.3/105.8/109.1/112.2/114.7/116.3

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post #3732 of 3742 Old Yesterday, 08:55 AM
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Thanks for the explanation guys. The main thing I was trying to accomplish was to increase the 15 Hz and up spl since I am still dealing with a large room. I am using the UM 18 in the Mini and full Marty subs. The full Marty will be around 20 ft. from the MLP.

My system does not incorporate nearfield and is a distributed bass system due to the room layout. One guy put some Infinity 12's behind his last role of seating. I will see how this performs before considering that option to take advantage of the PV from nearfield subs.

I will run the Mini and full Marty with port 1/4 port plugs in the slots at the bottom which is how I run the 2 other large vented UM 18 subs. This should give me just a wee bit of extension

Here are a couple of pic's of the full Marty that I just finished painting this AM and the Mini Marty next to my old Chase SS 18.1 box. The Mini is alinged on the right with the chase sub. It looks like I could almost put two of the Chase boxes in the Mini, lol.

I will run the Mini and full Marty with 1/4 of the port blocked at the bottom for a wee bit of extension. I have did this with the other large vented UM 18 subs.
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post #3733 of 3742 Old Yesterday, 05:31 PM - Thread Starter
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Quote:
Originally Posted by coolrda View Post
Here's what I came up with using WinISD on WindowsXP. Red is MiniMarty, Blue is MartyCube and Yellow is Ref Sealed. The two Marty boxes were using data and subs listing on the Martysub FAQ.

Max SPL@1M Frequency 10/12.5/16/20/25/31.5/40/50

MiniMarty 89.3/99.4/112.4/115.5/116.6/117.4/117.9/118.3

MartyCube 87.6/97.1/104.5/109.1/112.7/115.4/117.1/117.9

Ref Sealed 94.5/98.2/102.3/105.8/109.1/112.2/114.7/116.3

Thanks @coolrda !

What is the tune of the MiniMarty? How about the Marty Cube, or is that a sealed design?

Also, is the driver the SI in the Marty's or the UM18?
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post #3734 of 3742 Old Yesterday, 05:33 PM - Thread Starter
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Quote:
Originally Posted by derrickdj1 View Post
Thanks for the explanation guys. The main thing I was trying to accomplish was to increase the 15 Hz and up spl since I am still dealing with a large room. I am using the UM 18 in the Mini and full Marty subs. The full Marty will be around 20 ft. from the MLP.

My system does not incorporate nearfield and is a distributed bass system due to the room layout. One guy put some Infinity 12's behind his last role of seating. I will see how this performs before considering that option to take advantage of the PV from nearfield subs.

I will run the Mini and full Marty with port 1/4 port plugs in the slots at the bottom which is how I run the 2 other large vented UM 18 subs. This should give me just a wee bit of extension

Here are a couple of pic's of the full Marty that I just finished painting this AM and the Mini Marty next to my old Chase SS 18.1 box. The Mini is alinged on the right with the chase sub. It looks like I could almost put two of the Chase boxes in the Mini, lol.

I will run the Mini and full Marty with 1/4 of the port blocked at the bottom for a wee bit of extension. I have did this with the other large vented UM 18 subs.
You've definitely got the disease sir... Well done!
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post #3735 of 3742 Old Yesterday, 05:50 PM
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Quote:
Originally Posted by dominguez1 View Post
Thanks @coolrda !

What is the tune of the MiniMarty? How about the Marty Cube, or is that a sealed design?

Also, is the driver the SI in the Marty's or the UM18?
Copied from @chalugadp 's post

Martycube
volume = 4.75 c.f. , tuning=20hz SI HT18

Minimarty
volume = 9.0 c.f. , tuning=18hz Ultimax 18
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post #3736 of 3742 Old Yesterday, 07:28 PM
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I can't believe its been two and a half weeks. Healing up nicely and I got a ton of stuff done including some stuff I didn't plan on fixing. So tomorrow starts phase two which is cool because it includes theater work. Anyway I got in some playtime today. Lots of VSensor testing and more importantly the sub relocate as 4x15's will be placed under the screen. The front subs were relocated to their permanent home at the rear.



And EoT before .......



and after, a few db down.

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post #3737 of 3742 Old Yesterday, 08:28 PM
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Heres a few more before and afters.









Looking at the LogPSD we see gains of 7/13/4/7/2 units(db) respectively at 10/15/20/25/30hz. Apparently the front rear arrays were interacting causing the 15hz null. So the huge gain at 15hz is a combination of null removal and near field placement, not one or the other. The other frequencies fall in line with what you would figure on if you co locate subs and double the numbers.

How does this feel? Like a physical assault on the body. It feels like 3x the TR or more. Approaching 1g@10hz combined with the pressure I'm feeling is lunacy. Make no mistake, I'm not giving it back, but, its more that anyone could stand for more than 10 mins. Jupiter Ascending was brutal. Course theres always the I wonder what that would feel like. This is the first time I can say my system sounds balanced regarding TR and SPL quantity. Spl and pressure has always dominated. But no longer. More to come.

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post #3738 of 3742 Unread Today, 03:59 AM
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some data from @markymiles who has just dropped in a pair of 1260w (in ~2.5-3ft3 sealed I think) behind his sofa while he waits for his UXL-18 to arrive, no other subs in the room at all. I think that shows about +/- 0.5g peak which is pretty nice going.

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post #3739 of 3742 Unread Today, 09:04 AM
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some data from @markymiles who has just dropped in a pair of 1260w (in ~2.5-3ft3 sealed I think) behind his sofa while he waits for his UXL-18 to arrive, no other subs in the room at all. I think that shows about +/- 0.5g peak which is pretty nice going.

The new data is greatly welcomed. Thanks @markymiles . Great performance out of a popular sub around here. It makes you wonder wants the point of placing subs anywhere but nearfield.

I mentioned this before but might add that if your making a test run with EoT clip, pause the clip @20Seconds . Set VS to this.



Then start the VS and then the clip when delay zeros. This will give you 3 sec bookends on the 14 sec clip. This helps with the limited display of our devices used.
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post #3740 of 3742 Unread Today, 09:13 AM
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Yeah understood re the measuring. I didn't even know about this thread which is why matt posted it here. Wish I had known as it was mostly guesswork on the app.


Is this better? Played it a touch louder, I think it's getting near the limit.
















Last edited by markymiles; Today at 09:39 AM.
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post #3741 of 3742 Unread Today, 09:59 AM
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Quote:
Originally Posted by markymiles View Post
Yeah understood re the measuring. I didn't even know about this thread which is why matt posted it here. Wish I had known as it was mostly guesswork on the app.


Is this better? Played it a touch louder, I think it's getting near the limit.















Much better, nicely done. I'll add it to the database. What phone/PED are you using?
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post #3742 of 3742 Unread Today, 10:14 AM
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Motorola Moto G. Don't know why they have ended up so extreme close up .
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