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post #121 of 251 Old 11-26-2013, 09:38 PM
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Originally Posted by atabea View Post

I just finished gluing up the last piece of the box and expect to start duratexing tomorrow.

Awesome work, Rick.

One tip I discovered while Duratexing is to keep a spray bottle of water handy. If you find that the texture is firming up too quickly and making for a rougher texture than desired, just spritz the surface with water and you can extend your working time while you cover and blend those large surfaces.

When you are done, spritz some water onto the Duratex in the pail and seal up the pail. This will prevent a film from forming between jobs.

Mike
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post #122 of 251 Old 11-27-2013, 07:23 AM - Thread Starter
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Originally Posted by mhutchins View Post

Awesome work, Rick.

One tip I discovered while Duratexing is to keep a spray bottle of water handy. If you find that the texture is firming up too quickly and making for a rougher texture than desired, just spritz the surface with water and you can extend your working time while you cover and blend those large surfaces.

When you are done, spritz some water onto the Duratex in the pail and seal up the pail. This will prevent a film from forming between jobs.

Mike

Thanks, Mike, I will definitely keep that in mind when I am painting. Wish I knew these tips as I now have a film on my duratex--which I had stored for a few months after using some of it for my tempests.

Rick
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post #123 of 251 Old 11-27-2013, 07:27 AM - Thread Starter
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Originally Posted by chalugadp View Post

I can answer a few...

Set the hp filter as crossover at 20hz, but 6 on display for type , plus 3 db with gain.

Turn gains all the way up for inuke .

I have one martysub in the front right and one hsu vtf15 in the front left. Turn on test tones and calibrate them so there 75 db for both subs individually . Then they will be equal at certain hz. Down low your Marty will dominate . Ideally i would have two Marty's but the hsu does a good job of evening out the room.

Set the lp crossover on your avr or preamp.

As for other settings , I used the peq of the inuke at 70,80, and 90 because I wanted a little more midbass . Play around with some eq settings to see what you like. After that do a frequency sweep to even things out. Have fun

Thanks Chaluga, I think I understand what you are saying. But I was wondering about that HPF set so high at 20 hz. Is that ok? Would that not filter out everythig under 20 hz? Whe you say peq at 70, 80 and 90 hz, do you mean that you boosted those frequencies? Sorry if these questions are elementary, I am just so green at these things.
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post #124 of 251 Old 11-27-2013, 07:57 AM
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Setting the hpf at 20 with such a shallow slope of 6 means that the actual cutoff point is lower then 20. Someone else in another thread explained it much better. I don't know all the technical info but I am getting strong bass down to 16hz.

Peq is just eq bumps at the frequency you want. I like to feel the mid bass so I bumped it up a couple of dbs. You can leave it flat or bump it up or down to make your room flat. It's all personal preference.
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post #125 of 251 Old 11-27-2013, 05:26 PM - Thread Starter
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Quote:
Originally Posted by chalugadp View Post

Setting the hpf at 20 with such a shallow slope of 6 means that the actual cutoff point is lower then 20. Someone else in another thread explained it much better. I don't know all the technical info but I am getting strong bass down to 16hz.

Peq is just eq bumps at the frequency you want. I like to feel the mid bass so I bumped it up a couple of dbs. You can leave it flat or bump it up or down to make your room flat. It's all personal preference.

Ok, thank you Chaluga, I will try to implement those settings. Just hope I can get it right so I don't damage anything. Seems like a complicated process.
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post #126 of 251 Old 11-27-2013, 06:56 PM
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i would suggest a 2nd order 16hz high pass filter with this sub. other options may work, but this one would make me comfortable.

inuke can't set filters below 20hz, but that is no problem. we just start with one at 20, then add a little shelf to push it down to 16.

here is exactly what to put into the inuke dsp.

step 1: on the filter tab, 2nd order highpass filter at 20hz (butterworth, 12db / octave)



step 2: on the parametric eq tab, filter 1, gain -4db, frequency 20hz, type: HS12



then use filters 2, 3, 4, etc. for any other EQ that you wish to add.


---


additional step.


this additional step is only necessary in some instances depending on how much drive voltage the avr/pre-amp produces.


since the high pass with negative gain lowered the overall level by 4db in this case, that can be raised back up by adding the same amount of gain on the filter/crossover tab. so go back to that tab and increase the gain as shown with the red arrow.


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Last edited by LTD02; 08-20-2014 at 12:17 PM.
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post #127 of 251 Old 11-28-2013, 02:58 AM - Thread Starter
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Quote:
Originally Posted by LTD02 View Post

i would suggest a 2nd order 16hz high pass filter with this sub. other options may work, but this one would make me comfortable.

inuke can't set filters below 20hz, but that is no problem. we just start with one at 20, then add a little shelf to push it down to 16.

here is exactly what to put into the inuke dsp.

step 1: on the filter tab, 2nd order highpass filter at 20hz (butterworth, 12db / octave)



step 2: on the parametric eq tab, filter 1, gain -4db, frequency 20hz, type: HS12



then use filters 2, 3, 4, etc. for any other EQ that you wish to add.

That's great, thanks LTD. Being more of a visual learner, this will make make things a lot simpler for me. I can't wait to get my driver (hopefully by Sunday) and get things connected.

Rick
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post #128 of 251 Old 11-28-2013, 07:29 PM - Thread Starter
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All primed and ready for Duratex. I think I am on schedule for a Sunday finish with driver installed.






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post #129 of 251 Old 11-28-2013, 07:37 PM
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Very nice! Looks great ata.

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post #130 of 251 Old 11-28-2013, 09:13 PM
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snap, crackle, POP! that looks great!

Listen. It's All Good.
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post #131 of 251 Old 11-30-2013, 05:25 PM
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That really looks nice! Excellent build !!
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post #132 of 251 Old 11-30-2013, 05:50 PM
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Let us know how it sounds wink.gif
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post #133 of 251 Old 11-30-2013, 07:57 PM - Thread Starter
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Thanks guys, Just finished putting on the first coat of duratex and will do a second coat tomorrow morning. Not totally satisfied with the outcome though. I think I used the wrong type of roller as the finish is not as smooth/even as when I finished my Tempests. Next time I do this I am definitely buying the same roller that came with the duratex. My friend was was going to Buffalo for Thanksgiving and he will be bringing my driver tomorrow. If he shows up early enough, I will definitely try to install and give get a quick listen. For some reason, a couple of the pictures came out a lot lighter than the others.







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post #134 of 251 Old 12-02-2013, 07:20 PM - Thread Starter
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I just finished installing the driver and, of course, I had to give it a quick listen (just a couple of familiar songs). One point: this thing is freakin scary!!. It easily overpowers my two PSAs combined. I ran it without any EQ so I can't wait to run ARC (Anthem) tomorrow and see just what this beast can do. I will report back after I run ARC and conduct some further listening with some movie clips as well.



I also have to black out those vents for a more uniform appearance.
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post #135 of 251 Old 12-02-2013, 07:30 PM
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^^^ COOL! Uhhhh, you do know you have to get a SW license to run that thing don’t you? just warnin smile.gif

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post #136 of 251 Old 12-02-2013, 07:30 PM
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Don't forget, with these tall, stiff surrounds and spiders, break-in is a real phenomena. It will sound even better, and louder, after 10-20 hours of use!

Nice looking sub, by the way!!! wink.gif
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post #137 of 251 Old 12-02-2013, 07:34 PM - Thread Starter
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Quote:
Originally Posted by steve nn View Post

^^^ COOL! Uhhhh, you do know you have to get a SW license to run that thing don’t you? just warnin smile.gif

LOL. I kinda believe that. The wife had already given me the go-ahead to build four but after hearing this one she is now worried about the foundation. Think am gonna have to be extra nice to her at Christmas.
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post #138 of 251 Old 12-02-2013, 07:36 PM - Thread Starter
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Originally Posted by mhutchins View Post

Don't forget, with these tall, stiff surrounds and spiders, break-in is a real phenomena. It will sound even better, and louder, after 10-20 hours of use!

Nice looking sub, by the way!!! wink.gif

Hey, Mhutch, that is both interesting and good to know.
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post #139 of 251 Old 12-02-2013, 08:40 PM
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Quote:
Originally Posted by atabea View Post

Quote:
Originally Posted by steve nn View Post

^^^ COOL! Uhhhh, you do know you have to get a SW license to run that thing don’t you? just warnin smile.gif

LOL. I kinda believe that. The wife had already given me the go-ahead to build four but after hearing this one she is now worried about the foundation. Think am gonna have to be extra nice to her at Christmas.

Four Marty subs... crazy .biggrin.gif
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post #140 of 251 Old 12-02-2013, 11:21 PM
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"this thing is freakin scary!!"

:-)

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post #141 of 251 Old 12-03-2013, 04:16 AM
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Quote:
Originally Posted by mhutchins View Post

Don't forget, with these tall, stiff surrounds and spiders, break-in is a real phenomena.  It will sound even better, and louder, after 10-20 hours of use!

Nice looking sub, by the way!!!  wink.gif

The SI18 was design to have a very compliant surround and spider, more so that most of the market from what I understand.  Josh mentioned this in his official test of the SI18 on D-B here

I get the point you are trying to make though and I'm sure it applies in most (if not all) scenarios to some degree.
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post #142 of 251 Old 12-03-2013, 01:23 PM - Thread Starter
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Need help! I was just trying to run (Anthem) ARC but I am getting some strange readings with the Sub. Measurements tell me that the sub is operating at too high a frequency ---in the 2khz range--and that there is a greater than 10db difference between listening positions. When ARC runs the test tones, I can tell that the sub is reproducing higher frequencies as it sounds a lot like my LCR mains. I tried it with my PSA subs and those are operating in the correct frequencies --under 500 hz. My guess is that it has something to do with the crossover setting in the 3000 DSP. Is there a way to correct this?
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post #143 of 251 Old 12-03-2013, 02:38 PM
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Quote:
Originally Posted by atabea View Post

Need help! I was just trying to run (Anthem) ARC but I am getting some strange readings with the Sub. Measurements tell me that the sub is operating at too high a frequency ---in the 2khz range--and that there is a greater than 10db difference between listening positions. When ARC runs the test tones, I can tell that the sub is reproducing higher frequencies as it sounds a lot like my LCR mains. I tried it with my PSA subs and those are operating in the correct frequencies --under 500 hz. My guess is that it has something to do with the crossover setting in the 3000 DSP. Is there a way to correct this?

If you have the iNuke 3000dsp connected to the LFE output of your receiver then it should be impossible to have any high frequencies coming into the amp, or sub.
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post #144 of 251 Old 12-03-2013, 03:01 PM
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Quote:
Originally Posted by atabea View Post

Need help! I was just trying to run (Anthem) ARC but I am getting some strange readings with the Sub. Measurements tell me that the sub is operating at too high a frequency ---in the 2khz range--and that there is a greater than 10db difference between listening positions. When ARC runs the test tones, I can tell that the sub is reproducing higher frequencies as it sounds a lot like my LCR mains. I tried it with my PSA subs and those are operating in the correct frequencies --under 500 hz. My guess is that it has something to do with the crossover setting in the 3000 DSP. Is there a way to correct this?

Unless you have the low pass filter on the inuke set to 2k I don't know how this could happen. Just make sure the lpf is off on the inuke and the anthem should filter to the receivers settings .
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post #145 of 251 Old 12-03-2013, 03:08 PM
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strange. in your avr, be sure the subwoofer xover is set to around 80hz and that the sub is connected to the pre-out for the lfe/subwoofer output. with just one sub, lots of seat to seat variation is normal.

Listen. It's All Good.
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post #146 of 251 Old 12-03-2013, 03:32 PM - Thread Starter
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"If you have the iNuke 3000dsp connected to the LFE output of your receiver then it should be impossible to have any high frequencies coming into the amp, or sub."

I do have the inuke connected to the Sub out of the receiver. So that is really strange. Anthem shows that the sub is operating well over 2khz.

"Unless you have the low pass filter on the inuke set to 2k I don't know how this could happen. Just make sure the lpf is off on the inuke and the anthem should filter to the receivers settings ."

I am not sure what the low pass filter is set to on the inuke. I am not even sure how to set/change it. I will try to find it and turn off.


"strange. in your avr, be sure the subwoofer xover is set to around 80hz and that the sub is connected to the pre-out for the lfe/subwoofer output. with just one sub, lots of seat to seat variation is normal."

The Anthem Receivers are odd in that you cannot set the crossover manually when you run ARC. In fact, you can't even "see" where the crossover is set. Only information you can see are the trims. It's so odd to hear the sub reproduce high frequencies when ARC plays the test tones (Anthem test tones start with low frequencies and go all the way up high---the sub just should not be reproducing them). when I play the same test tones through my PSA there is no problem. That's why I am convinced it's the inuke since that is in the only different component in the signal chain just before the marty/manhattan sub.
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post #147 of 251 Old 12-03-2013, 03:44 PM
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If you can post screen shots of your settings-tabs in the Inuke, it might be possible to spot it if something is not right.
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post #148 of 251 Old 12-03-2013, 04:18 PM - Thread Starter
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Here are snapshots of each tab in the inuke:







Here are the graphs for the Marty and the PSA for comparison:




On another note, it seems my settings are not being saved in the inuke after I switch off the unit. How can I ensure the settings are retained after shutoff?
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post #149 of 251 Old 12-03-2013, 04:47 PM
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I don't know about saving the settings/presets. Read manual?

In the Configuration tab you have phase as 180 degree. Is that on purpose?

In the Dynamic Eq tab it looks like you have engaged the dynamic Eq from -30db. However gain is set to zero so it should not do anything. The manual is close to useless, but maybe you you could set it to off?

In the filter tab you have the low pass (LP) set to off as is suggested. I have a suspicion that the MRX might expect a response from the sub that is rolled off in the midrange. Maybe in an effort to save novices that hook up power amps to the wrong channel (main speaker to sub out). You can try to set a low pass at 500Hz and see if it accepts it.
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post #150 of 251 Old 12-03-2013, 05:09 PM - Thread Starter
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Quote:
Originally Posted by splotten View Post

I don't know about saving the settings/presets. Read manual?

In the Configuration tab you have phase as 180 degree. Is that on purpose?

In the Dynamic Eq tab it looks like you have engaged the dynamic Eq from -30db. However gain is set to zero so it should not do anything. The manual is close to useless, but maybe you you could set it to off?

In the filter tab you have the low pass (LP) set to off as is suggested. I have a suspicion that the MRX might expect a response from the sub that is rolled off in the midrange. Maybe in an effort to save novices that hook up power amps to the wrong channel (main speaker to sub out). You can try to set a low pass at 500Hz and see if it accepts it.

Thanks splotten, The phase was set deliberately as bass was very localized when I tested it. When I switched phase, it was no longer localized. According to what I have read, the inuke is supposed to automatically save settings after two minutes. I will have to check that again to see if I misunderstood it. I only opened the dynamic eq tab so I can take a snapshot. Those settings would have been the default but I am willing to try anything so solve this. What you said about the MRX expecting a sub that is rolled off is quite interesting. LTD showed me how to set the HPF and I don't know how to set a low pass. It's certainly worth a try though. Anyone know how to set a low pass in the inuke?

thanks
Rick
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