No Rez retro fit

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pstrisik

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No Rez retro fit
« on: 10 Sep 2025, 03:27 pm »
Hi All,

I've decided to reline my Omega Super Alnico Monitors - HO and Rythmik 8" woofer cabs with No Rez.  Danny, thanks for help thus far in deciding to do it and in purchasing the material.

I was lucky since I found the padding layer was stapled in, not glued, which is what I feared.  I will, of course, remove the staples.

I am starting the project today and was hoping to complete, at least the monitors, all in one day so I don't have them out of commission tonight.  But, naturally, I run into questions.  I'm posting a couple of initial photos.  One with existing damping and one with that damping layer removed.  I discovered that there is a thin, but dense, layer of some kind of damping glued underneath (the black layer).  I'm thinking I will adhere the No Rez on top of that to save some difficult removal work.  Anyone see a problem with that?  It is quite thin, maybe 1/16".

I'll report progress and before and after sound impressions later.

Advanced thanks for the help!

.....Pete








tremrej65

Re: No Rez retro fit
« Reply #1 on: 10 Sep 2025, 03:44 pm »
Nice speakers.
If the adhesion of the No-Rez is good on that black layer I would leave it there.

pstrisik

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Re: No Rez retro fit
« Reply #2 on: 10 Sep 2025, 04:05 pm »
Thanks.  That thin black layer is adhered well, so NR adhesion should be good to it.

Tyson

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Re: No Rez retro fit
« Reply #3 on: 10 Sep 2025, 04:21 pm »
Man you are going to be shocked at how much cleaner your speakers sound once you get the norez in.

pstrisik

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Re: No Rez retro fit
« Reply #4 on: 10 Sep 2025, 04:57 pm »
I'm hoping!  They always had a bit of bloom in the upper bass.

goggle1824

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Re: No Rez retro fit
« Reply #5 on: 10 Sep 2025, 06:11 pm »
What type of wood is the veener? Looks pretty sharp! 👍🏼

pstrisik

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Re: No Rez retro fit
« Reply #6 on: 10 Sep 2025, 06:25 pm »
It's zebra wood (or zebrano).  Louis Conchos, the maker, was kind enough to make the cabinets for the 8" Rythmik powered woofers and grain matched them to the main cabs.  The monitors are basically full range single driver.  The lower driver has low pass at 200hz.  The main driver has no crossover in the path.  I've had them for about eight years.

pstrisik

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Re: No Rez retro fit
« Reply #7 on: 10 Sep 2025, 08:23 pm »
Ok, that's one down, one to go today.  I'll tackle the woofer cabinets tomorrow.  They will go much more quickly.

Very wide angle.  The speakers are not as narrow as they look.  I left the bottom, front baffle, and around the port opening alone as was done originally.

I read, in one of the threads, that Danny said the foam portion is transparent and doesn't make the cabinet smaller.  This No Rez is more than twice as thick as the original damping so I'm counting on that to be true!





JCarney

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Re: No Rez retro fit
« Reply #8 on: 10 Sep 2025, 09:19 pm »
Well done. Very neat and tidy. I am looking forward to your impression of the change.

JCarney

pstrisik

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Re: No Rez retro fit
« Reply #9 on: 10 Sep 2025, 10:51 pm »
Whew!  Both done.  Listening tonight!

YEEEEGZ

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Re: No Rez retro fit
« Reply #10 on: 11 Sep 2025, 02:58 am »
looks most excellent my dude

pstrisik

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Re: No Rez retro fit
« Reply #11 on: 12 Sep 2025, 01:12 pm »
Now I have finished the woofer cabinets.  These are much smaller.  Here are before and after.  The before photo has one side of the original layer removed.  There is a cut out at the bottom to make room for the plate amp:






Again, I've read that the No Rez foam layer does not affect the effective cabinet volume with regard to the sound.  I'm doing integration adjustments to settings but wonder if this is 100% true given that I started with 1 cubic foot.  The thick No Rez reduces the physical space dramatically.  So far, I'm reserving judgment regarding the improvement for the woofers.

However, with regard to the main monitors, there is no question that there is dramatic improvement.  Much more than I was expecting!  Bass is tighter, everything is clearer, imaging is sharper, dynamics/transients have greater impact.

Very happy about this result.  Now on to overall tweaking to get the woofers newly integrated.

....Pete

KTS

Re: No Rez retro fit
« Reply #12 on: 13 Sep 2025, 10:27 am »
I believe that No Rex will actually affect the space sonically different, I believe the drivers behave like there is equal too or a bit more space than without No Rez in the same enclosure, I could be mistaken, but that has been my experience.

pstrisik

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Re: No Rez retro fit
« Reply #13 on: 13 Sep 2025, 12:31 pm »
I believe that No Rex will actually affect the space sonically different, I believe the drivers behave like there is equal too or a bit more space than without No Rez in the same enclosure, I could be mistaken, but that has been my experience.

Do I understand you correctly that the No Rez does not reduce cabinet volume?  In fact, either doesn't change it or makes it seem bigger than the actual physical volume?

@Danny Richie, could I get your input on how this works?  Thx

Early B.

Re: No Rez retro fit
« Reply #14 on: 13 Sep 2025, 12:49 pm »
Do I understand you correctly that the No Rez does not reduce cabinet volume?  In fact, either doesn't change it or makes it seem bigger than the actual physical volume?

@Danny Richie, could I get your input on how this works?  Thx

Go to Danny's website and watch the first video. Beginning at the 5:24 minute mark, he answers your question: https://gr-research.com/product/norez-two/

goggle1824

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Re: No Rez retro fit
« Reply #15 on: 13 Sep 2025, 02:44 pm »
Your work installing the NoRes looks excellent, well done.

 I’m excited to hear your listening impressions!

KTS

Re: No Rez retro fit
« Reply #16 on: 13 Sep 2025, 03:47 pm »
Do I understand you correctly that the No Rez does not reduce cabinet volume?  In fact, either doesn't change it or makes it seem bigger than the actual physical volume?

@Danny Richie, could I get your input on how this works?  Thx


Yes that that has been my experience. Your speakers are absolutely stunning! Well done on the No Rez.

pstrisik

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Re: No Rez retro fit
« Reply #17 on: 13 Sep 2025, 03:59 pm »
Go to Danny's website and watch the first video. Beginning at the 5:24 minute mark, he answers your question: https://gr-research.com/product/norez-two/

Got it thanks! I knew I had heard it or read it somewhere but couldn't find it. So no worries for me about the cabinet size; it should be fine as is. The only question now is that he talked about measuring impedance on a ported speaker and my rhythmic woofers are sealed. Wondering if that matters. Particularly since the results on the monitors are stellar but I still am questioning the results on the woofers.

pstrisik

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Re: No Rez retro fit
« Reply #18 on: 13 Sep 2025, 04:24 pm »
One more question while I'm at it.  I have one sheet and a bunch of pieces left over.  Would these work on the wall behind my desktop speakers or no?  I currently have the cheap foam with pyramids on it.  Thx

Danny Richie

Re: No Rez retro fit
« Reply #19 on: 13 Sep 2025, 05:01 pm »
It looks like all is figured out here. The No Rez is not really needed on the braces, but it also didn't hurt.