Official JTR Speakers Subwoofer Thread - Page 460 - AVS Forum | Home Theater Discussions And Reviews
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post #13771 of 13821 Old 11-26-2019, 01:49 PM
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Hey guys,

I use a pair of 118Ht's in my theater these days. I've noticed recently that during movies they will both switch on and off seemingly out of the blue. Has anyone seen this before? I typically set the power switch to Auto, and even tried it with just being On, and got the same result.

Thoughts?

JTR Speakers, RSL Atmos, Kaleidescape, Lumagen Radiance Pro, Marantz Processor, Emotiva Amps, JVC RS540
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post #13772 of 13821 Old 11-26-2019, 03:18 PM
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Quote:
Originally Posted by Naylorman32 View Post
Hey guys,

I use a pair of 118Ht's in my theater these days. I've noticed recently that during movies they will both switch on and off seemingly out of the blue. Has anyone seen this before? I typically set the power switch to Auto, and even tried it with just being On, and got the same result.

Thoughts?
I leave my 118HTs powered On all the time because I mostly listen to music and it bothers me when the subs turn on/off with the Auto setting when bass varies so much between recordings. Since leaving the subs On always, I've never had them turn off/on by themselves.

Seems odd that both of your subs are suddenly having the same problem. Could it be an issue with the electrical circuit?

Jack
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post #13773 of 13821 Old 11-26-2019, 04:23 PM
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Quote:
Originally Posted by Naylorman32 View Post
Hey guys,

I use a pair of 118Ht's in my theater these days. I've noticed recently that during movies they will both switch on and off seemingly out of the blue. Has anyone seen this before? I typically set the power switch to Auto, and even tried it with just being On, and got the same result.

Thoughts?


If they're both going on and off in tandem with the power switch on, it seems unlikely that the cause would be either a defect with the amps or low trim levels triggering the auto on circuit. If you have both subs running off of a single sub out with a splitter I'd try replacing the main RCA cable and maybe the splitter itself. If the subs are on separate sub outs, maybe an AVR issue, try a reset?? (obviously an AVR issue is possible in the first case also)
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post #13774 of 13821 Old 11-26-2019, 05:57 PM
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Also, it is possible the gain on the subs are set too low before calibration. And would result the signal send to the plate amp, for not having a strong enough signal.
Hopefully this will give a better explanation;
II-C: Where And How To Add Bass


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post #13775 of 13821 Old 11-26-2019, 08:15 PM
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I believe That is a issue that some were having with a certain run of JTR amps. I would pull the power cord from the Amps and see if they will reset.
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post #13776 of 13821 Old 11-26-2019, 09:03 PM
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Originally Posted by basshead81 View Post
I believe That is a issue that some were having with a certain run of JTR amps. I would pull the power cord from the Amps and see if they will reset.
I've tried this. I wonder if potentially replacing the power cord would make a difference. I will also try adjusting the settings on the back of the sub as referenced below.

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post #13777 of 13821 Old 11-27-2019, 08:58 AM
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Quote:
Originally Posted by Naylorman32 View Post
I've tried this. I wonder if potentially replacing the power cord would make a difference. I will also try adjusting the settings on the back of the sub as referenced below.
Try hooking your phone directly to one of the subs with a 3mm to RCA and play some music. If it goes away then you know it's a source/signal issue, if it still persists then it's likely a amp issue.
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post #13778 of 13821 Old 11-27-2019, 12:15 PM
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Originally Posted by chucky7 View Post
Wait a minute...

You are the guy that bought madhuski's JTR Noesis 228HTs 5 minutes after he listed them for sale?

https://www.avsforum.com/forum/209-a...l#post58767268

I hate you!

Just kidding!

Congratulations on receiving your JTR subs! Welcome to the family!
Oh, I didn't even know I replied after 5 min he posted. I was lucky haha.
I have ordered more JTR from Jeff to complete my room and now They sound phenomenal.
Only one thing for me to hesitate to get these bad boys was there no where to demo this brand.
Now I can tell It worth to blind shot for those who has same issue as I did.
I have never been happy like this during all other speaker purchase.
I may put these back for surround duty and get bigger one for LCR near future.

Thanks Jeff and all other who gave me a advise.
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post #13779 of 13821 Old 11-27-2019, 12:42 PM
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Originally Posted by umjs78 View Post
Oh, I didn't even know I replied after 5 min he posted. I was lucky haha.
I have ordered more JTR from Jeff to complete my room and now They sound phenomenal.
Only one thing for me to hesitate to get these bad boys was there no where to demo this brand.
Now I can tell It worth to blind shot for those who has same issue as I did.
I have never been happy like this during all other speaker purchase.
I may put these back for surround duty and get bigger one for LCR near future.

Thanks Jeff and all other who gave me a advise.
What do you have in your HT already?

Speakers: L/C/R: JTR Noesis 212HT. Surrounds: Jamo C103, KEF Q100, Polk Audio RTiA3.
Subwoofer: JTR Captivator 4000ULF.
AVR: Denon AVR-X4400H. TV: Samsung UN75NU8000FXZA.

FS: Jamo C103, KEF Q100 and Polk RTiA3
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post #13780 of 13821 Old 11-29-2019, 07:06 AM
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Originally Posted by chucky7 View Post
What do you have in your HT already?


228ht lcr w/ dual 1200xs, thinking to get (3) 212htr to replace them.

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post #13781 of 13821 Old 11-29-2019, 07:25 AM
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Originally Posted by umjs78 View Post
228ht lcr w/ dual 1200xs, thinking to get (3) 212htr to replace them.

Good job!

The Noesis 212HTRs as L/C/R with the 228HTs as surrounds is gonna be sick!

Speakers: L/C/R: JTR Noesis 212HT. Surrounds: Jamo C103, KEF Q100, Polk Audio RTiA3.
Subwoofer: JTR Captivator 4000ULF.
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post #13782 of 13821 Old 11-29-2019, 08:20 PM
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Was able to fire up REW and play around a little tonight. Results are pretty good and shows you can mix subs with different tuning points if placed right. Looks like I am +/-3db or so from 11-80hz.


I took a compression sweep as well and looks like I am reference capable down into the 12hz range. Above 20hz there is gobs of headroom left. Subs are barely working on these sweeps.
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post #13783 of 13821 Old 11-29-2019, 09:51 PM
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^^ Looking great BH81 . I bet it sounds pretty dang good. Do you happen to have graphs of the 1200SX only and xv15 only and perhaps Center and 4 subs?
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post #13784 of 13821 Old 11-29-2019, 10:35 PM
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Originally Posted by tvuong View Post
^^ Looking great BH81 . I bet it sounds pretty dang good. Do you happen to have graphs of the 1200SX only and xv15 only and perhaps Center and 4 subs?
Thanks. I did 1200xs solo(Far field) no eq, then the PSA's solo(near field)no eq, then combined with no eq, then combined with Audy. Didn't measure with the Center. I took the solo measurements -6db so they were not stacked on top of each other and a little easier to read.

Side note, the first graph I posted of base response was actually my last measurement. I tweaked the distance settings and flattened those peaks a little...hence why it looks smoother then the other graphs.
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Last edited by basshead81; 11-29-2019 at 10:38 PM.
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post #13785 of 13821 Old 11-30-2019, 12:52 AM
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^^ How do they connect to your Denon AVR? JTR on one sub out and the 3 psa’s on another sub out? When you said PSA’s near field, do you mean all 3 PSAs or 1 PSA? Want to make sure I understand your set up and graphs.
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post #13786 of 13821 Old 11-30-2019, 08:53 AM
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Originally Posted by tvuong View Post
^^ How do they connect to your Denon AVR? JTR on one sub out and the 3 psa’s on another sub out? When you said PSA’s near field, do you mean all 3 PSAs or 1 PSA? Want to make sure I understand your set up and graphs.
JTR is on 1 sub out, 3 PSA's on the other. The PSA's are nearfield equidistant from the MLP.
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post #13787 of 13821 Old 11-30-2019, 10:18 AM
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Originally Posted by basshead81 View Post
Thanks. I did 1200xs solo(Far field) no eq, ........

That combined graph looks good bh! I'm curious though, is that fall off @ 30 hz with the JTR due to it's position? Is that a spot you previously measured with one of your PSAs, or is it new? I know you probably mentioned it in one of your posts already. Thanks
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post #13788 of 13821 Old 11-30-2019, 02:13 PM
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I am not sure what you consider drop off but the JTR is pretty much flat 11-32hz. I have it placed in the 3rd location where I had one of my PSA subs. This spot Lacks mid bass but it provides good low end where the near field placement lacks.

Last edited by basshead81; 11-30-2019 at 02:26 PM.
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post #13789 of 13821 Old 11-30-2019, 10:37 PM
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Originally Posted by basshead81 View Post
I am not sure what you consider drop off but the JTR is pretty much flat 11-32hz. I have it placed in the 3rd location where I had one of my PSA subs. This spot Lacks mid bass but it provides good low end where the near field placement lacks.

That's what I meant, above 30 hz. It clearly doesn't fall off below.

OK, so it's the spot causing that. Thanks
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post #13790 of 13821 Old 12-01-2019, 08:44 AM
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Originally Posted by zeus33 View Post
That's what I meant, above 30 hz. It clearly doesn't fall off below.

OK, so it's the spot causing that. Thanks
Yep, Its the spot and as you can see my room needs multiple subs to get a good response without excessive EQ. The large opening mid wall on the left side of the room causes some response issues a single sub could never over come. Anyhow, I still plan on doing more testing when I get a chance. One will be comparing FR between PSA and JTR in same locations. However the main reason I bought the JTR was for the added low end in hopes that the spot I reserved for it would work out. As you can see, it's working well and gets quite a bit of room gain below 30hz. I have more then enough 30-80hz with the PSA's.

One thing to note, Those that have mentioned the low tune subs having a different sound signature were right! when I auditioned the v1801 in my room it didn't work well where my current JTR and 15v sub was placed. I had to move it opposite wall where you enter the room. Never liked the looks of it there. Also even though it got me reference level output ( down to 13-14hz according to REW), I didn't really notice the added depth. The JTR just adds weight to the low end that is noticeable.

I only wish there was more content to make use of it because I don't notice a big difference unless I am playing material that has <20hz content. That being said, My listening habits have shifted 40% TV/ 40% movies / 20% music these days, so this was another big factor in trying a low tuned offering paired with my current subs instead of jumping to NEO driver upgrades.
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post #13791 of 13821 Old 12-01-2019, 09:18 AM
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Quote:
Originally Posted by basshead81 View Post
Yep, Its the spot and as you can see my room needs multiple subs to get a good response without excessive EQ. The large opening mid wall on the left side of the room causes some response issues a single sub could never over come. Anyhow, I still plan on doing more testing when I get a chance. One will be comparing FR between PSA and JTR in same locations. However the main reason I bought the JTR was for the added low end in hopes that the spot I reserved for it would work out. As you can see, it's working well and gets quite a bit of room gain below 30hz. I have more then enough 30-80hz with the PSA's.



One thing to note, Those that have mentioned the low tune subs having a different sound signature were right! when I auditioned the v1801 in my room it didn't work well where my current JTR and 15v sub was placed. I had to move it opposite wall where you enter the room. Never liked the looks of it there. Also even though it got me reference level output ( down to 13-14hz according to REW), I didn't really notice the added depth. The JTR just adds weight to the low end that is noticeable.



I only wish there was more content to make use of it because I don't notice a big difference unless I am playing material that has <20hz content. That being said, My listening habits have shifted 40% TV/ 40% movies / 20% music these days, so this was another big factor in trying a low tuned offering paired with my current subs instead of jumping to NEO driver upgrades.


Look into BEQ to get all the low end you need.


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Subwoofers: Dual Rythmik FV18s Rev2 with Paper cone, BOSS Platform mini riser, 2 BK LFE
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post #13792 of 13821 Old 12-01-2019, 12:19 PM
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Originally Posted by imureh View Post
Look into BEQ to get all the low end you need.


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I second this!
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post #13793 of 13821 Old 12-01-2019, 01:04 PM
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I second this!
I third this! BEQ is a game changer for bringing out the low end in movies. It made a huge difference with “just” 2 S1’s.

Speakers: KEF R300 (R,L), KEF R600C (C), JBL 306p mkII (Surrounds), KEF Ci160QR (In-Ceiling) Subs: JTR Captivator S1 x2 Processor/Amps: Anthem AVM60, ATI AT4003, Rotel RB985 mkII Misc: ATV 4k, Sony PS4, Samsung K8500, MiniDSP 2x4HD Video: BenQ HT2050, 100” Screen Room: 2500 cu sq. ft. sealed on suspended floor

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post #13794 of 13821 Old 12-01-2019, 10:26 PM
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This may be a dumb question but I need to know the answer. I have recently added 2 RS1's to my 2 Rythmik F18s. Rythmik subs do not use a DSP so they don't have any delay whatsoever. The JTR's have a 7ms delay (measured through MiniDSP and audessey). How would I hook these up to my McIntosh C2600 preamp? This is a tube stereo preamp that does not have any way of adding distance to the speakers, so the subs sound horrible. 7ms delay in audio is an absolute eternity. I run the line out from one of the outputs on the C2600 to the minidsp and cross it over around 80hz. Running a hybrid music/movie setup is very easy with Rythmik, but impossible (thus far) with JTR. I am wondering if there is a quick fix I don't know of? It was very easy to hookup with Audessey and minidsp for movies, I just added 7ms delay to the rythmiks and they time aligned nicely. If there is no way, I may have to return them....I don't want to though.

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post #13795 of 13821 Old 12-01-2019, 11:33 PM
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Originally Posted by basshead81 View Post
Yep, Its the spot......

Thanks for the info bh. It sounds like the JTR is a good match for you. I'm glad it works well with your setup.

As others have mentioned, BEQ will utilize that extra bottom end.
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post #13796 of 13821 Old 12-02-2019, 08:01 AM
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Originally Posted by basshead81 View Post
JTR is on 1 sub out, 3 PSA's on the other. The PSA's are nearfield equidistant from the MLP.
May be trying to swap the 1200XS placement with one of the near field psa to see if they sound/feel better?
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post #13797 of 13821 Old 12-02-2019, 08:48 AM
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May be trying to swap the 1200XS placement with one of the near field psa to see if they sound/feel better?
Yea, I plan on moving the JTR to a near field location to compare differences but I can about bet it will not remain there because it will be defeating the entire purpose. There is little room gain in the near field locations below 20hz so I won't be utilizing the added JTR low end. Here is a response graph of my 3 PSA subs before the JTR. You can see how the 3rd sub mid wall makes a huge impact on the sub 30hz response. It's not really just the JTR, My PSA provides similar results, but down to 16hz instead of 11hz with the JTR.

Edit* Here is a graph of dual PSA vs tri's with no EQ for comparison.
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post #13798 of 13821 Old 12-03-2019, 11:19 AM
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btw, per my previous post last week... i figured out it was my power conditioner clicking! not the subs (major facepalm!)
They are right next to eachother and i never bothered to stick my ear up to both to hear exactly where it was coming from lol.
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post #13799 of 13821 Old 12-03-2019, 11:43 AM
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Originally Posted by muscles View Post
This may be a dumb question but I need to know the answer. I have recently added 2 RS1's to my 2 Rythmik F18s. Rythmik subs do not use a DSP so they don't have any delay whatsoever. The JTR's have a 7ms delay (measured through MiniDSP and audessey). How would I hook these up to my McIntosh C2600 preamp? This is a tube stereo preamp that does not have any way of adding distance to the speakers, so the subs sound horrible. 7ms delay in audio is an absolute eternity. I run the line out from one of the outputs on the C2600 to the minidsp and cross it over around 80hz. Running a hybrid music/movie setup is very easy with Rythmik, but impossible (thus far) with JTR. I am wondering if there is a quick fix I don't know of? It was very easy to hookup with Audessey and minidsp for movies, I just added 7ms delay to the rythmiks and they time aligned nicely. If there is no way, I may have to return them....I don't want to though.

Greg
You said the JTR has a built in 7 ms delay, and you added a 7 ms delay but the rhythmik sound good and the JTR not? Are they in different locations?

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post #13800 of 13821 Old 12-03-2019, 12:15 PM
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Quote:
Originally Posted by MKtheater View Post
You said the JTR has a built in 7 ms delay, and you added a 7 ms delay but the rhythmik sound good and the JTR not? Are they in different locations?
I think he meant he left JTR's alone and added 7ms to the rythmics to match them up, but he can't do this via his two channel rig that is also part of the setup. I was more confused about the rythmic not having DSP. It absolutely has DSP and they even say that on the website. The adjustments made via the plate amp all require DSP to be functional so there should still be some form of delay happening in both sub offerings.
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