Official JTR speaker thread - Page 919 - AVS | Home Theater Discussions And Reviews
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post #27541 of 28947 Old 02-08-2015, 05:23 PM
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Quote:
Originally Posted by Nabs17 View Post
Looks good Rob...want to ask a couple of questions:


1) Where are they placed in relation to your 2 rows? Meaning what angle did you use?
2) How much space is between the JBL's and your T8's you use for surround?


I had never considered mounting slanted speakers off to the sides into the seating area....makes sense.
The speakers are approx 4' in front of and behind the front row. That puts the back heights just in front of the back row and a bit out board of the outside seats and a little (few inches) behind the Triple 8 side surrounds. I wish I had more room on both sides of both rows as I would have moved them more outboard of the outside seats. Maybe next HT

Quote:
Originally Posted by asoofi1 View Post
If you mistakingly venture into the Atmos thread, a few ppl will shoot you with precise angles the overheads should be aimed at...I don't buy it. If the general dispersion is towards the seats, you're good IMO.

With the 8340a, the speaker is already built with a slant and it seems one could just install it flush with ceiling and still get good overhead effect results...plus, DTS:X will work with your current placements, so even less to worry about.

Rob can confirm if he angled it more than flush, but it seems from the pics they look good. I for one will be firing straight down with my bookshelf speakers when I do atmos....then angle if it's needed.
Yeah like that kind of precision placement and angles are mandated by the formats ... The JBL's are parallel with the ceiling about 2" off due to the massive mounts and I'm using the 20° angle to aim the sound just outside of the center LP. I'm actually close to the Dolby Atmos specification for 5.X.4 and people are using up-firing speakers to bounce sound off of the ceiling in many "approved" Atmos installs ...
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Last edited by RMK!; 02-08-2015 at 05:31 PM.
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post #27542 of 28947 Old 02-08-2015, 05:26 PM
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So is this a 7.1.4 setup?
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post #27543 of 28947 Old 02-08-2015, 05:31 PM
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Quote:
Originally Posted by rhed View Post
So is this a 7.1.4 setup?
It might be a 7.0.4 setup...RMK, do you even have any subs anymore?
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post #27544 of 28947 Old 02-08-2015, 05:35 PM
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Quote:
Originally Posted by rhed View Post
So is this a 7.1.4 setup?
Nope, technically it is a 5.0.4 setup (poor subless me ) . Nine speakers and it's kind of like headphones but better ... much better

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post #27545 of 28947 Old 02-08-2015, 05:42 PM
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Quote:
Originally Posted by RMK! View Post
Nope, technically it is a 5.0.4 setup (poor subless me ) . Nine speakers and it's kind of like headphones but better ... much better
Your theater looks great RMK! I bet is sounds awesome too. Do you plan on getting any subs?
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post #27546 of 28947 Old 02-08-2015, 05:43 PM
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Originally Posted by Brian Fineberg View Post
Jose look fantastic! Do you have a link to those speakers?
Muchas gracias but my name is Roberto ...

Her you go JBL Pro Cinema.

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post #27547 of 28947 Old 02-08-2015, 05:49 PM
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Originally Posted by Pain Infliction View Post
Your theater looks great RMK! I bet is sounds awesome too. Do you plan on getting any subs?
I have 6 15" woofers across the front and the bass is just right ... so no, no mas

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post #27548 of 28947 Old 02-08-2015, 05:53 PM
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Originally Posted by RMK! View Post
I think I am going to like this DSU/Atmos thing with the JBL's.
Help me understand DSU. So, does it take all 2 channel, 5 channel, or 7 channel signals and convert them to DSU using all the speakers including ceiling speakers?

This is what I'm most interested in since hardly any actual Atmos content exists.

thanks!
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post #27549 of 28947 Old 02-08-2015, 05:54 PM
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Yes, I know you have the 215's, but what are you doing about the LFE channel in movies? Just doing without it?
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post #27550 of 28947 Old 02-08-2015, 05:54 PM
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Originally Posted by Pain Infliction View Post
Yes, I know you have the 215's, but what are you doing about the LFE channel in movies? Just doing without it?
My avr (and many others I think) will route the LFE to the mains when you select NO for subwoofer.
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post #27551 of 28947 Old 02-08-2015, 05:57 PM
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Quote:
Originally Posted by carp View Post
My avr (and many others I think) will route the LFE to the mains when you select NO for subwoofer.
Oh ok. I have never not used subs before, so I never came across this situation. Makes sense.
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post #27552 of 28947 Old 02-08-2015, 06:00 PM
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Originally Posted by Pain Infliction View Post
Oh ok. I have never not used subs before, so I never came across this situation. Makes sense.
What my AVR won't do (and I think most avr's are like this) is send the LFE to both the subs and the mains.
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post #27553 of 28947 Old 02-08-2015, 06:03 PM
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So, I have these options:

Non-LFE bass in the mains can play:

In the mains only while LFE plays in the subs only (along with bass from other non 215 speakers)
In the mains and subs together while LFE plays in the subs only
In the subs only along with the LFE
In the mains only with 2 channel - no LFE

I like option 2 the best for movies and option 4 for music, even though I was recently told option 2 is all wrong.
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post #27554 of 28947 Old 02-08-2015, 06:05 PM
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Quote:
Originally Posted by carp View Post
What my AVR won't do (and I think most avr's are like this) is send the LFE to both the subs and the mains.
I know that Yamaha does because I do that in my living room. I don't think denon does.
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post #27555 of 28947 Old 02-08-2015, 06:06 PM
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Quote:
Originally Posted by carp View Post
Help me understand DSU. So, does it take all 2 channel, 5 channel, or 7 channel signals and convert them to DSU using all the speakers including ceiling speakers?

This is what I'm most interested in since hardly any actual Atmos content exists.

thanks!
Yes, it's Dolby Surround and it upmixes the Dolby tracks to take advantage of Atmos speakers but it also works great in conventional 5.1, 7.1 systems too. It was my really liking DSU surround sound that made this Atmos upgrade happen. Remember, I'm a movies first person.

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post #27556 of 28947 Old 02-08-2015, 06:09 PM
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Originally Posted by Pain Infliction View Post
Yes, I know you have the 215's, but what are you doing about the LFE channel in movies? Just doing without it?
The LFE is routed to my LCR's as I have no subs in a conventional sense.

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post #27557 of 28947 Old 02-08-2015, 06:10 PM
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Quote:
Originally Posted by RMK! View Post
Yes, it's Dolby Surround and it upmixes the Dolby tracks to take advantage of Atmos speakers but it also works great in conventional 5.1, 7.1 systems too. It was my really liking DSU surround sound that made this Atmos upgrade happen. Remember, I'm a movies first person.
So, DSU makes movies better than 5.1/7.1 even without ceiling speakers. With ceiling speakers it's even that much better?
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post #27558 of 28947 Old 02-08-2015, 06:13 PM
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Older Yamaha interface. This was my first 7 channel avr and has done me well over the years. My theater gets all the newest gear rightfully so.
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post #27559 of 28947 Old 02-08-2015, 06:13 PM
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Originally Posted by carp View Post
So, DSU makes movies better than 5.1/7.1 even without ceiling speakers. With ceiling speakers it's even that much better?
That's my take ... it replaced DTS (HDMA) as my goto M/C format. Now DTS-X might just be better, time will tell.

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post #27560 of 28947 Old 02-08-2015, 06:20 PM
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Those JBL'S look perfect for ATMOS. Can't wait to see how you like them once you get them dialed in and more material is released on blu ray.
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post #27561 of 28947 Old 02-08-2015, 06:25 PM
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Originally Posted by Pain Infliction View Post
Older Yamaha interface. This was my first 7 channel avr and has done me well over the years. My theater gets all the newest gear rightfully so.
Cool - didn't know there really were any AVR's that could do it.
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post #27562 of 28947 Old 02-08-2015, 06:28 PM
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So, If you cross your surrounds at say 80hz, will the sub 80hz bass go to the mains?
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post #27563 of 28947 Old 02-08-2015, 06:34 PM
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Originally Posted by Pain Infliction View Post
So, If you cross your surrounds at say 80hz, will the sub 80hz bass go to the mains?
Good question, I wondered that lately myself.
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post #27564 of 28947 Old 02-08-2015, 06:45 PM
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Originally Posted by dgage View Post
How does that center channel measure? Nice!
It measures 6.2 liters V8, hehe. I bought the 14 Raptor Thursday and figured they would like some JTR company on a Sunday afternoon.
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JTR Noesis 228 (LCR)
Polk Audio LSiM 703 (Surrounds)
Seaton SubMersive HP Plus and Minus (Subs)
Denon 3312 (Receiver)
Sherbourn PA 7-350 (Amp)
Oppo BDP-103 (BluRay Player)
Sharp 80" 3D
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post #27565 of 28947 Old 02-08-2015, 06:49 PM
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Ok, it has been a heck of a busy week and I am just now getting around to setting up my 212s.

I ran Audessey and it set my 212s LR to large. I changed them to small at an 80 crossover. Curious how this is gonna work out...

JTR Noesis 228 (LCR)
Polk Audio LSiM 703 (Surrounds)
Seaton SubMersive HP Plus and Minus (Subs)
Denon 3312 (Receiver)
Sherbourn PA 7-350 (Amp)
Oppo BDP-103 (BluRay Player)
Sharp 80" 3D

Last edited by rangers; 02-08-2015 at 07:01 PM.
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post #27566 of 28947 Old 02-08-2015, 07:13 PM
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Originally Posted by rangers View Post
Ok, it has been a heck of a busy week and I am just now getting around to setting up my 212s.

I ran Audessey and it set my 212s LR to large. I changed them to small at an 80 crossover. Curious how this is gonna work out...
"Small" is the correct answer.
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post #27567 of 28947 Old 02-08-2015, 07:19 PM
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Originally Posted by Pain Infliction View Post
So, If you cross your surrounds at say 80hz, will the sub 80hz bass go to the mains?
@carp

It depends on the bass mgmt implementation in the receiver. They can be inconsistent. Usually, you just need to find the right settings. If your mains are full range, your surrounds aren't, and you don't have subs, you certainly want it to do that. It should be easy to tell with REW or some test tones.

Another related issue is whether you want it to ditch LFE or send it to your mains. Usually with "full range" mains and no sub, you want it to ditch LFE. 215RTs might be a rare exception. Again, this varies between receivers, but there is probably a bass mgmt setting that will direct LFE to your mains. Even the terminology used in the settings is often inconsistent.

Edit: Oops...just read the rest of the posts and saw that this was already discussed.
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post #27568 of 28947 Old 02-08-2015, 07:23 PM
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Quote:
Originally Posted by carp View Post
What my AVR won't do (and I think most avr's are like this) is send the LFE to both the subs and the mains.
Carp.. I have a old Pioneer elite that's still governing the speaker setup in my system. And after research and postings in the MCACC thread. I've learned that if I select "Plus" instead of "Yes" and large for mains. It should be getting LFE routed to both subs and mains. I've been running it this way for a month now. And really liking it. Then again It could be a placebo effect.. Lol..
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post #27569 of 28947 Old 02-08-2015, 07:45 PM
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Originally Posted by Pain Infliction View Post
I know that Yamaha does because I do that in my living room. I don't think denon does.
Yes, I can confirm Yamaha does because I have a CX-A5000.

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post #27570 of 28947 Old 02-08-2015, 08:02 PM
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Originally Posted by rhed View Post
Carp.. I have a old Pioneer elite that's still governing the speaker setup in my system. And after research and postings in the MCACC thread. I've learned that if I select "Plus" instead of "Yes" and large for mains. It should be getting LFE routed to both subs and mains. I've been running it this way for a month now. And really liking it. Then again It could be a placebo effect.. Lol..
Back when I got the 215's I found a DD or DTS demo online - can't remember where I found it - that let you hear all the channels with test tones including the LFE channel. When I had my avr set to sub off I could hear the LFE tone in the mains.

However when I set the avr to "Plus" and then muted the subs using the minidsp you could no longer hear the LFE tone so I know my elite doesn't do it.
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