Official JTR speaker thread - Page 1081 - AVS Forum | Home Theater Discussions And Reviews
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Old 11-01-2015, 10:33 AM
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Got the amps hooked up last night and almost demolished my house. Smoke started coming out of the 212s I'm guessing it was burning sawdust becuase it only lasted a little while and the speakers sounded great. The lights were dimming in the theater.
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Old 11-01-2015, 10:58 AM
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Originally Posted by jaimectrs View Post
Got the amps hooked up last night and almost demolished my house. Smoke started coming out of the 212s I'm guessing it was burning sawdust becuase it only lasted a little while and the speakers sounded great. The lights were dimming in the theater.
That's not good.
You might want to check with Jeff to see if they need some sort of check (i.e. REW measurements).
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Old 11-01-2015, 11:13 AM
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Real smoke, or just a few puffs of dust?

It takes lots of abnormal people to make things easy for normal people.
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Old 11-01-2015, 11:23 AM
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Originally Posted by Freakquency View Post
Real smoke, or just a few puffs of dust?
real smoke. I've been running them with the Denon 4520 for weeks now with no problems, but they never came remotely close to the output from last night even with the Denon fully cranked.
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Old 11-01-2015, 11:24 AM
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Wow!

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Old 11-01-2015, 11:29 AM
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If it's all three speakers smoking, it can't be the speakers problem.

It takes lots of abnormal people to make things easy for normal people.
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Old 11-01-2015, 11:33 AM
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If it's all three speakers smoking, it can't be the speakers problem.
Yes, both front at about the same time, couldn't see the center it's behind the screen. That's what I figured, not too worried about it.
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Old 11-01-2015, 11:54 AM
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Originally Posted by jaimectrs View Post
Yes, both front at about the same time, couldn't see the center it's behind the screen. That's what I figured, not too worried about it.
That's not normal. I would check.
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Old 11-01-2015, 12:11 PM
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I believe there is some support in the CD for shipping that has to be removed prior to use. I recall this being reported before.

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Old 11-01-2015, 12:48 PM
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Originally Posted by jaimectrs View Post
That's what I figured, not too worried about it.
I would be if they were mine. You might want to run that by Jeff.

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Old 11-01-2015, 12:51 PM
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I'm going to take the woofer off and send him some pictures of the crossover.
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Old 11-01-2015, 02:29 PM
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Originally Posted by NWCgrad View Post
I believe there is some support in the CD for shipping that has to be removed prior to use. I recall this being reported before.
Yes there is a small piece of styrofoam in the CD to protect the phase plug during shipping or to keep anything from getting in there. Did you remove this?
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Old 11-01-2015, 03:39 PM
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Originally Posted by jaimectrs View Post
real smoke. I've been running them with the Denon 4520 for weeks now with no problems, but they never came remotely close to the output from last night even with the Denon fully cranked.
That's a first, good idea to remove the woofer and look at the Xover. What does the smoke smell like? Are you sure it's the speakers and not the amps?
I'll leave the Colorado smoke jokes out of this cause if the're smoking, it's serious.

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Old 11-01-2015, 04:29 PM
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so you guys were right (I think). It wasn't the foam on the compression drivers, those are off. I took off the woofer and I think the plastic on one of the capacitors may have got burnt by one of the ceramic looking inserts. I sent some pictures to Jeff and I'll wait to see what he thinks.
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Old 11-01-2015, 04:42 PM
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I have my triple 12's a few years now but I never removed anything from the speakers, was I supposed to?
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Old 11-01-2015, 04:46 PM
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Originally Posted by drpete12 View Post
I have my triple 12's a few years now but I never removed anything from the speakers, was I supposed to?
No, the new JTR speakers with the 2 way CD have a foam ring around the phase plug that needs to be removed. Nothing in any of the pre 2015 speakers to remove.
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Old 11-01-2015, 05:09 PM
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thanks
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Old 11-01-2015, 05:26 PM
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Do the Cherry amps have signal clip indicators?
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Old 11-01-2015, 08:44 PM
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I have used DIY Soundgroup volt8's with my 228's then 212's and now 210's and they are wonderful.

They come out to under $200 each if you can assemble/glue/paint a box. The crossovers are very easy to out together also. I think you can even buy assembled crossovers now.
Hi raynist,
since you already experienced the 3 line up,is there any significant improvement?from 212 to 210 is that called downgrade?Thanks
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Old 11-01-2015, 09:12 PM
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Hi raynist,
since you already experienced the 3 line up,is there any significant improvement?from 212 to 210 is that called downgrade?Thanks
The improvement from the 212 to the 210RT is that they are pretty much full range speakers for music. I do not need subs when listening to 2 channel music. I like the way the 210's sound over the 212 and my subs for music. I expect to find little difference for movies once my 3rd 210 arrives this week I can probably set the crossover point a bit lower since the 210 goes down to 38hz vs 60hz for the 212.
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Old 11-01-2015, 09:51 PM
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The improvement from the 212 to the 210RT is that they are pretty much full range speakers for music. I do not need subs when listening to 2 channel music. I like the way the 210's sound over the 212 and my subs for music. I expect to find little difference for movies once my 3rd 210 arrives this week I can probably set the crossover point a bit lower since the 210 goes down to 38hz vs 60hz for the 212.
thanks,so for 100% movies 212 will do just fine with subwoofer?which one better,212ht or 212htr?sorry for my noob questions..
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Old 11-01-2015, 10:10 PM
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thanks,so for 100% movies 212 will do just fine with subwoofer?which one better,212ht or 212htr?sorry for my noob questions..
The 212HTRs are better than the 212HTs. R = Reference.

The 212HTRs are exceptional for music and movies. They just aren't full range, and integrating speakers well with subs for music can be tricky. With a full range speaker, that integration is perfected at the factory, but they also have disadvantages (unless you use subs).
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Old 11-01-2015, 10:38 PM
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i'm a bit confuse,looking for lcr for my next upgrade,my budget is below 2k for each speaker,100% movies...room size 16' x 24' using at screen.
so my choice will be either 228htr,212ht or 210rm,can anyone give suggestion?thanks
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Old 11-01-2015, 10:54 PM
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Quote:
Originally Posted by man's View Post
i'm a bit confuse,looking for lcr for my next upgrade,my budget is below 2k for each speaker,100% movies...room size 16' x 24' using at screen.
so my choice will be either 228htr,212ht or 210rm,can anyone give suggestion?thanks
If it's strictly movies and running subs. Then 228htr's. What subs if so?
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Old 11-01-2015, 11:38 PM
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If it's strictly movies and running subs. Then 228htr's. What subs if so?
for now i'm using dual svs pb13u
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Old 11-02-2015, 12:05 AM
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for now i'm using dual svs pb13u

If you're 100% movies I would definitely suggest going with the 228HTR's.
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Old 11-02-2015, 06:09 AM
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Quote:
Originally Posted by man's View Post
i'm a bit confuse,looking for lcr for my next upgrade,my budget is below 2k for each speaker,100% movies...room size 16' x 24' using at screen.
so my choice will be either 228htr,212ht or 210rm,can anyone give suggestion?thanks
Any of those would work well.

I love the coax driver, so that eliminates the 212HT. The 212HTR has that for $2300, which is a bit over your budget.

Comparing the 210RM and 228HTR, the 228HTR is more efficient, but the 210RM is a sealed design, which can be easier to cross over with subs.
If you have a powerful amp, I think I would lean toward the 210RM, but if not, I think I would lean toward the 228HTR.
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Old 11-02-2015, 06:21 AM
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If you are planning to buy your surrounds as well, you will get a discount which will make the 212HTR very close to your budget.
Quote:
Originally Posted by man's View Post
i'm a bit confuse,looking for lcr for my next upgrade,my budget is below 2k for each speaker,100% movies...room size 16' x 24' using at screen.
so my choice will be either 228htr,212ht or 210rm,can anyone give suggestion?thanks

My home theater upgrade thread
Speakers: 3 JTR 212HTR (LCR), 2 Jtr Single 8LP (S), 2 JTR Triple 12LF (SB)) , 4 Volt 10LX (Atmos)
Subwoofers: 4 Rythmik FV15HP , 5 Crowson Shadow 8 transducers, 3 Buttkicker LFE
Receivers/Amps: Denon X5200W, Emotiva XPA-2 G1 (LR), 2 Emotiva XPA-5 G2 , 2 BK 1000A
Displays: Benq W7000 (3D only), Benq W6000 (2D only)
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Old 11-02-2015, 06:30 AM
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Yeah I get that multiples will accomplish that but at a cost and a level of complexity I will avoid. There are too many folks I respect giving Dirac a thumbs up to ignore so I believe it is a worthwhile addition. I will wait until there is a solution from a single processor that has 3D audio (11 channels) and Dirac. In the meantime, I don't feel I'm missing much but would love to hear a Dirac setup (hey Warren!).

We watched the 2003 Phantom of the Opera last night and frankly, I can't imagine a better sounding setup and I've heard a quite a few. We just saw the play in San Francisco (good seats too) and the difference in SQ was amazing ... To quote my lovely wife, "everything sounds better in the cave" (her name for the room).
Arcam's upcoming receivers have Dirac.
They will , knowing Arcam , sound great.
Especially with music.
My guess is a processor will follow next spring or so.

Bug plagued in the first gen of HDMI recievers AFAIK these problems have been solved.
Pricey though.
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Old 11-02-2015, 06:32 AM
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Do the Cherry amps have signal clip indicators?
No. Not too many consumer products have clip indicators. With the Maraschino's, you would need more than 8V of input (+20 dBu) to create clipping with most content due to the amp's input sensitivity and low gain. You can possibly clip if connected to a subwoofer and are only sending very low bass to it since this is high voltage with a low crest factor.
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