Official JTR speaker thread - Page 1197 - AVS Forum | Home Theater Discussions And Reviews
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post #35881 of 35905 Old 09-20-2016, 05:07 PM
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Are there any places that do detailed 3rd party testing of amps?
The numbers on the speaker power site don't really appear to be apples to apples or are labeled poorly. (Some are at 50hz, some not labeled, etc)
They also don't state what their numbers are higher up the spectrum, which would be interesting to see.

At least those numbers are still high enough to drive the 215's to reference in my room at the MLP (but just barely), but it would be nice to see an explanation from Dennis on this for clarity.
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post #35882 of 35905 Old 09-20-2016, 05:13 PM
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Quote:
Originally Posted by theblackangus View Post
Are there any places that do detailed 3rd party testing of amps?
The numbers on the speaker power site don't really appear to be apples to apples or are labeled poorly. (Some are at 50hz, some not labeled, etc)
They also don't state what their numbers are higher up the spectrum, which would be interesting to see.

At least those numbers are still high enough to drive the 215's to reference in my room at the MLP (but just barely), but it would be nice to see an explanation from Dennis on this for clarity.
A few guys on the forum do it.

Lukeandam (probably spelled that wrong) has posted links tonamos he has tested (including speaker power) and notnyt also has tested amps.
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post #35883 of 35905 Old 09-21-2016, 07:49 AM
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Quote:
Originally Posted by theblackangus View Post
Are there any places that do detailed 3rd party testing of amps?
The numbers on the speaker power site don't really appear to be apples to apples or are labeled poorly. (Some are at 50hz, some not labeled, etc)
They also don't state what their numbers are higher up the spectrum, which would be interesting to see.

At least those numbers are still high enough to drive the 215's to reference in my room at the MLP (but just barely), but it would be nice to see an explanation from Dennis on this for clarity.
Very close @raynist It's @lukeamdman and his amp testing thread is right here at DB: http://data-bass.ipbhost.com/index.p...plifier-tests/
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post #35884 of 35905 Old 09-21-2016, 03:45 PM
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Only two weeks until RMAF and lots to do.
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post #35885 of 35905 Old 09-21-2016, 04:19 PM
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Only two weeks until RMAF and lots to do.
I really wanted to go and I still may. See what happens. I just wish just once one of these shows were in NY Ctiy or even Florida. I could get 5 thousand flights to Florida for nothing.
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post #35886 of 35905 Old 09-21-2016, 05:38 PM
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Quote:
Originally Posted by beastaudio View Post
Very close @raynist It's @lukeamdman and his amp testing thread is right here at DB: http://data-bass.ipbhost.com/index.p...plifier-tests/
Thanks Beast!
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post #35887 of 35905 Old 09-21-2016, 06:29 PM
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I really wanted to go and I still may. See what happens. I just wish just once one of these shows were in NY Ctiy or even Florida. I could get 5 thousand flights to Florida for nothing.
I don't know how big it will be but there is a show in NYC in November.

https://www.chestergroup.org/newyorkaudioshow/2016
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post #35888 of 35905 Old 09-23-2016, 07:54 AM
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Originally Posted by desertdome View Post
Note that the QSC PL380 long term does 980 watts @ 2 ohms, 1050 w @ 4 ohms, and 1100 w @ 8 ohms. This is consistent with an amp that is current limited - usually by the power supply. It takes a lot more current at low impedance for long term output. Bridging, which is done with most Class D amps, increases the voltage for more long term power at high impedance at the expense of having less long term power available for lower impedance.

Regarding the time, I thought they were self explanatory. All the amps tested show a time frame for short and medium term power. The final column is how much power they produce between the medium term power and thermal overload. Brian Oppeguard (SpeakerPower) helps explain it here:



Edit: Per Tommy with Digital Amp Company, the Cherry Ultra Monoblocks I own are rated at 400 watts @ 8 ohm, 750 watts at 4 ohm, but only 250 watts at 2 ohm. This is because they are current limited by design.
Interesting info Michael, I am anxious to see how the Motu with a 16Hz HP filter affects the ability to run the 215RT's up to and beyond reference without having woofer distress. I've been watching some movies at my usual -7 to -10db ref levels with no negative impact (in fact, it sounds great) but I can really hear/feel the speakers trying to play the ULF's without an HP filter. I'll be crossing the LCR's at 120Hz and the Motu will mix the LFE into the LCR's output.

Playing those frequencies is not my goal so I welcome more head room in general at the expense of anything below 16hz.

Opinions are not facts.

Last edited by RMK!; 09-23-2016 at 08:33 AM.
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post #35889 of 35905 Old 09-23-2016, 10:36 AM
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I don't know how big it will be but there is a show in NYC in November.

https://www.chestergroup.org/newyorkaudioshow/2016
Yeah there are shows, but not like the big ones like CES or Cedia etc..I would love to goto Cedia in NYC for a weekend. NYC is a blast if you have the time. Anything you want is right there! I just hate $17 dollar Bacaradi and Cokes! Thanks for the link though.

Not that it indeed applies to this thread, but I just test drove a 2016 Lincoln MKX as we are ordering one and the Revel Stereo is excellent and the vehicle is not to shabby either. I was very impressed with it. While I was sitting fooling with all the controls I was wondering when is Jeff going to get in touch with Lincoln and add a full 14.2 JTR set up??

Last edited by Reefdvr27; 09-23-2016 at 10:43 AM.
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post #35890 of 35905 Old 09-24-2016, 07:45 AM
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Price drop on the 215's I'm selling. I'm getting new carpet in my house including the basement so I've completely cleared the HT room. Since it feels like I'm "starting over" I'm really wanting to have speakers that can fit behind the screen. I'll probably sell the 212 too so I can have a matching 3 LCR.

Check link below to the sale thread on the classifieds if interested.
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post #35891 of 35905 Old 09-24-2016, 08:06 AM
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Quote:
Originally Posted by desertdome View Post

You also need to add a High Pass Filter at 20 Hz and a Shelf Filter on the inputs at 20 Hz and 6 dB. This will extend the High Pass Filter to around 15-16 Hz. Here you can see with and without the Shelf Filter.


Question DD,
You said the motu can high pass down to 12.5hz.
Why apply the high pass at 20hz, then use a shelf to bump it to 16hz vs just using the high pass at 16?
Is it in order to run the bass hot at 20hz ish or something else?
Thanks!
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post #35892 of 35905 Old 09-24-2016, 10:16 AM
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Jeff,

Could you do a custom 210RT with a center horn? For laying flat for a center channel application.
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post #35893 of 35905 Old 09-24-2016, 12:46 PM
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I'm about to start building my above-garage home theater (29x22). I'm planning on JTR all around, except for atmos in the ceiling. Two questions...

1) I'll be using the standard DD + GG. Can I mount the 8HT-LP's directly to the DD or should I put a layer of OSB in the spots where I'll be mounting the speakers?

2) Any recommendations for Atmos ceiling speakers other than Volts (I'm not a DIY guy)? The JBL 226C looks like a fairly efficient, compression driver speaker for ceiling mount. Any other recommendations?

Thanks!
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post #35894 of 35905 Old 09-24-2016, 09:11 PM
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Originally Posted by obleo View Post
I'm about to start building my above-garage home theater (29x22). I'm planning on JTR all around, except for atmos in the ceiling. Two questions...

1) I'll be using the standard DD + GG. Can I mount the 8HT-LP's directly to the DD or should I put a layer of OSB in the spots where I'll be mounting the speakers?

2) Any recommendations for Atmos ceiling speakers other than Volts (I'm not a DIY guy)? The JBL 226C looks like a fairly efficient, compression driver speaker for ceiling mount. Any other recommendations?

Thanks!
Aside from more JTRs, DIYSG also has Concentric 8s, which require much less assembly.
http://www.diysoundgroup.com/alpha-k...centric-8.html

I think JTR may have some kind of discount when you buy enough speakers, so that might make JTRs for Atmos a bit easier to swallow.

I do think sticking with high efficiency coaxes for Atmos speakers is a good direction.
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post #35895 of 35905 Old 09-25-2016, 07:06 AM
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Quote:
Originally Posted by obleo View Post
I'm about to start building my above-garage home theater (29x22). I'm planning on JTR all around, except for atmos in the ceiling. Two questions...

1) I'll be using the standard DD + GG. Can I mount the 8HT-LP's directly to the DD or should I put a layer of OSB in the spots where I'll be mounting the speakers?

2) Any recommendations for Atmos ceiling speakers other than Volts (I'm not a DIY guy)? The JBL 226C looks like a fairly efficient, compression driver speaker for ceiling mount. Any other recommendations?

Thanks!
Those slanted 8-lp might be an option. I'm trying to decide what I'm going to use for Atmos as well. It may be these or a custom S8 in ceiling mount that I've discussed with Jeff.
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post #35896 of 35905 Old 09-25-2016, 09:06 AM
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Those slanted 8-lp might be an option. I'm trying to decide what I'm going to use for Atmos as well. It may be these or a custom S8 in ceiling mount that I've discussed with Jeff.
Same thing here. I am thinking of changing my 7.2 to a 7.4.2. My plan is, I am going to leave my heights in place. I don't think my heights sound that well as surrounds, I would prefer them to be at ear level. So my plan is to leave the heights in place and turn them over to Atmos heights and then get 4 new single 8's and put two on the side at ear level and then two up front for front heights. My Atmos speakers will not be over head and I will loose my rear speakers, but IMO the rear speakers are two close to my seats and don't feel I get the proper sound anyway. Or I could just go to a 9.2.2 and leave the rear heights and add the sides at ear level and front heights for 9 channels and leave the current side heights as my Atmos overheads. Personally I think the 7.4.2 would give me the best sound for what I have to work with.

I will also add that I picked up Now you see me 2 and I have to say that it was one of the best sound tracks I ever heard. The surround work was incredible, I imagine the Atmos was even better.
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post #35897 of 35905 Old 09-26-2016, 02:45 AM
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Quote:
Originally Posted by Reefdvr27 View Post
Same thing here. I am thinking of changing my 7.2 to a 7.4.2. My plan is, I am going to leave my heights in place. I don't think my heights sound that well as surrounds, I would prefer them to be at ear level. So my plan is to leave the heights in place and turn them over to Atmos heights and then get 4 new single 8's and put two on the side at ear level and then two up front for front heights. My Atmos speakers will not be over head and I will loose my rear speakers, but IMO the rear speakers are two close to my seats and don't feel I get the proper sound anyway. Or I could just go to a 9.2.2 and leave the rear heights and add the sides at ear level and front heights for 9 channels and leave the current side heights as my Atmos overheads. Personally I think the 7.4.2 would give me the best sound for what I have to work with.

I will also add that I picked up Now you see me 2 and I have to say that it was one of the best sound tracks I ever heard. The surround work was incredible, I imagine the Atmos was even better.
"Now You See Me 2" Definitely a incredible sound track in ATMOS and overall fun.. Oh, and ATMOS track in The Conjuring 2? Um, good ATMOS track too. But, careful with this one if you need your beauty rest..LOL.. btw reef, you'd definitely should go 7.4.4.. its like no escaping a dome of terror, or action.. lol
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post #35898 of 35905 Old 09-26-2016, 06:58 AM
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I finally got my new setup running.
Reference levels are such a breeze now. Totally effortless.

The Powersofts are graceful and very calm until Max hits the starter. Then ...just wow.

Very, very happy with the changes I have made.
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post #35899 of 35905 Old 09-27-2016, 08:51 AM
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Originally Posted by carp View Post
Price drop on the 215's I'm selling. I'm getting new carpet in my house including the basement so I've completely cleared the HT room. Since it feels like I'm "starting over" I'm really wanting to have speakers that can fit behind the screen. I'll probably sell the 212 too so I can have a matching 3 LCR.

Check link below to the sale thread on the classifieds if interested.
This is funny, you want speakers that "fit behind your screen". Mine are behind the screen and I would love to have the wide mains placement you have for 2 channel listening.
I guess the grass is always greener. .

For those who like to switch out gear every couple of years these 215lb, 6' tall, zero WAF speakers are a measure twice, cut once type of purchase.

Opinions are not facts.
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post #35900 of 35905 Old 09-27-2016, 01:16 PM
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Originally Posted by Reefdvr27 View Post
Jeff,

Could you do a custom 210RT with a center horn? For laying flat for a center channel application.
Why not use the 210RM?

Opinions are not facts.
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post #35901 of 35905 Old 09-29-2016, 07:41 PM
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Finishing up the Noesis 210RT for Rocky Mountain Audiofest:
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post #35902 of 35905 Old 09-29-2016, 07:53 PM
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Finishing up the Noesis 210RT for Rocky Mountain Audiofest:
Jeff, those are just sexy.

Congratulations on a great looking, and I'm sure sounding, speaker. I'm looking forward to hearing and seeing them at RMAF.
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post #35903 of 35905 Old Yesterday, 09:49 AM
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Finishing up the Noesis 210RT for Rocky Mountain Audiofest:
That does look really good.
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post #35904 of 35905 Old Today, 06:22 AM
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Who is going to Rocky Mountain Audiofest this year?
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post #35905 of 35905 Old Today, 11:12 AM
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Who is going to Rocky Mountain Audiofest this year?
I will be there for Saturday and Sunday. Looking forward to hearing those 210RT's of yours!
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