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Official JTR speaker thread - Page 302

post #9031 of 18370
What about 3 Crown XLS 1000's for the LCR? 1100 watts bridged into 4 ohm. There is all you will ever need right?

http://www.amazon.com/Crown-XLS1000-Power-Amplifier/dp/B003HZPKSM/ref=sr_1_2?ie=UTF8&qid=1375332058&sr=8-2&keywords=crown+xls+2000

thats 131 db at 1 watt/1 meter if I did my math right

I don't see this Amazon seller on the authorized dealer list though
Edited by jlpowell84 - 7/31/13 at 9:54pm
post #9032 of 18370
The XLS1000's would cause more noise then the XLS1500 or higher model.
post #9033 of 18370
Quote:
Originally Posted by jbrown15 View Post

The XLS1000's would cause more noise then the XLS1500 or higher model.

How much noise are we talking here? Considerable? Is it the fan noise or humm?
post #9034 of 18370
Quote:
Originally Posted by jlpowell84 View Post

How much noise are we talking here? Considerable? Is it the fan noise or humm?

Humm/hiss from the speakers because of the amp. Andrew Jones did a review on the Crown XLS and talks about this, he mentions why he switched from the XLS1000 to a bigger XLS amp. I tried to find it to link it for you but couldn't find it.
Edited by jbrown15 - 7/31/13 at 10:31pm
post #9035 of 18370
Quote:
Originally Posted by jbrown15 View Post

Humm/hiss from the speakers because of the amp. Andrew Jones did a review on the Crown XLS and talks about this, he mentions why he switched from the XLS1000 to a bigger XLS amp. I tried to find it to link it for you but couldn't find it.

Oh, cool. Thanks for the info!
post #9036 of 18370
Quote:
Originally Posted by jbrown15 View Post

Quote:
Originally Posted by jlpowell84 View Post

How much noise are we talking here? Considerable? Is it the fan noise or humm?

Humm/hiss from the speakers because of the amp. Andrew Jones did a review on the Crown XLS and talks about this, he mentions why he switched from the XLS1000 to a bigger XLS amp. I tried to find it to link it for you but couldn't find it.

Hi jb, did you mean Andrew Robinson ?

Is this it? http://www.andrew-robinson-online.com/review-crown-xls-drivecore-series-amplifier/

Quote:
The amplifiers’ signal to noise ratio varies a little depending on which XLS Series amplifier you choose with the XLS 1000 offering up a 97dB rating where as the other three amplifiers dish out 103dB -this is critical to note for those contemplating using an XLS Series amplifier in their home cinema or private screening room which I’ll get to in a minute.

Quote:
What didn’t work for me was the XLS 1000′s heightened noise floor, which in my hybrid style setup consisting of consumer loudspeakers (albeit with pro drivers) and consumer grade source components, was simply too loud and noticeable for my tastes. Had I been using the XLS 1000s to power say a subwoofer or two the heightened noise floor would most likely have been less of an issue. However when mated to highly sensitive speakers like my Tekton Design Pendragons and in a space where the ambient room volume isn’t able to be registered on my SPL meter the noise floor was too noticeable. Thankfully, Guitar Center has a 30-day return policy.

I then got in contact with Crown and ordered three of their XLS 2000 amplifiers to see if the final results would be any different than with my findings with the 1000s -they were.
post #9037 of 18370
I'm sure a lot of you guys have done this before, but tonight was my first time watching a movie all the way through at reference. It was awesome!! Usually I just listen to music but tonight I got the urge to watch a movie. It was really cool, I didn't feel like it was too loud at all in fact it seemed perfect.

The movie was "9" and the sound effects were some of the best I've ever heard.

What's interesting to me is the last few times I've seen a movie in the theater I have had to put my earplugs in (ha, which I always have on my key chain) because the sound hurts my ears. That wasn't the case tonight. That leads me to believe that my local theater's speakers can't handle the volume they are trying to achieve and they are distorting causing them the speakers to sound really loud. Either that or the volume at the theater is actually above reference. That could be the case because I swear the theater speakers don't sound like they are distorting... it's just so friggin loud (with not near enough bass).

I finished the movie at 1:00 am without any worries of bothering the kids or wife. I don't get it, it's not like I have a big house I just got lucky with the layout of it I guess. I can never move... smile.gif
post #9038 of 18370
Quote:
Originally Posted by N8DOGG View Post

It's literally as easy as connecting 3 wires on each side, you don't need to hire anyone. If you hooked up your speakers then you can hook up a cord, it's literally that easy, just adding one extra ground wire.

I went looking for 20 A plug/socket today and couldn't find any... They said there aren't any plug/sockets above 15A.. i'll need to hook it up directly to the mains board... anyways, will ask my electrician...
post #9039 of 18370
Quote:
Originally Posted by jlpowell84 View Post

What about 3 Crown XLS 1000's for the LCR? 1100 watts bridged into 4 ohm. There is all you will ever need right?

http://www.amazon.com/Crown-XLS1000-Power-Amplifier/dp/B003HZPKSM/ref=sr_1_2?ie=UTF8&qid=1375332058&sr=8-2&keywords=crown+xls+2000

thats 131 db at 1 watt/1 meter if I did my math right

I don't see this Amazon seller on the authorized dealer list though

As was stated, the power supply and other components in the 1000 are inferior to the parts in the higher models. Forget the 1000, at least go to the 1500.

Quote:
Originally Posted by carp View Post

I'm sure a lot of you guys have done this before, but tonight was my first time watching a movie all the way through at reference. It was awesome!! Usually I just listen to music but tonight I got the urge to watch a movie. It was really cool, I didn't feel like it was too loud at all in fact it seemed perfect.

The movie was "9" and the sound effects were some of the best I've ever heard.

What's interesting to me is the last few times I've seen a movie in the theater I have had to put my earplugs in (ha, which I always have on my key chain) because the sound hurts my ears. That wasn't the case tonight. That leads me to believe that my local theater's speakers can't handle the volume they are trying to achieve and they are distorting causing them the speakers to sound really loud. Either that or the volume at the theater is actually above reference. That could be the case because I swear the theater speakers don't sound like they are distorting... it's just so friggin loud (with not near enough bass).

I finished the movie at 1:00 am without any worries of bothering the kids or wife. I don't get it, it's not like I have a big house I just got lucky with the layout of it I guess. I can never move... smile.gif

Yea, don't....I tried to watch Avengers a few weeks ago with some friends and the Fiance said the closet doors were banging two floors up!!! Haha. Oh well :/

Quote:
Originally Posted by coolgeek View Post

I went looking for 20 A plug/socket today and couldn't find any... They said there aren't any plug/sockets above 15A.. i'll need to hook it up directly to the mains board... anyways, will ask my electrician...

BS... http://www.smarthome.com/86634IV/Leviton-CR20-C0I-Cheetah-Duplex-20-Amp-Receptacle-Ivory/p.aspx
post #9040 of 18370
Quote:
Originally Posted by coolgeek View Post

I went looking for 20 A plug/socket today and couldn't find any... They said there aren't any plug/sockets above 15A.. i'll need to hook it up directly to the mains board... anyways, will ask my electrician...
What if we use a standard 15A 3-pin plug? I doubt the sub uses =>15A . Have you checked with Jeff?
I think it doesn't exist in Malaysia because 220-240v is the main power supply for household. Higher voltage with less current is the norm.
Edited by Skylinestar - 8/1/13 at 7:50am
post #9041 of 18370
Quote:
Originally Posted by Skylinestar View Post

What if we use a standard 15A 3-pin plug? I doubt the sub uses =>15A . Have you checked with Jeff?
I think it doesn't exist in Malaysia because 220-240v is the main power supply for household. Higher voltage with less current is the norm.

I agree and a 15amp rated grounded plug will be fine ...
post #9042 of 18370
Quote:
Originally Posted by Skylinestar View Post

What if we use a standard 15A 3-pin plug? I doubt the sub uses =>15A . Have you checked with Jeff?
I think it doesn't exist in Malaysia because 220-240v is the main power supply for household. Higher voltage with less current is the norm.

Sure, but not sure of the "code" in Malaysia, but one of those could easily be retro-fitted to work methinks.
post #9043 of 18370
Completed my payment today, so hope to hear from Jeff some time soon.

I would also like to get one of those JTR logo panels, but cant find where to get one.
Edited by staaled - 8/2/13 at 4:57am
post #9044 of 18370
I have decided to go with JTR and ordered 3X 212HT.

Are there any in-wall surround speakers that work well with 212HT? I have a slanted ceiling in my media room and it's not possible to use on-wall or floor standing surround speakers.
post #9045 of 18370
Quote:
Originally Posted by Skylinestar View Post

What if we use a standard 15A 3-pin plug? I doubt the sub uses =>15A . Have you checked with Jeff?
I think it doesn't exist in Malaysia because 220-240v is the main power supply for household. Higher voltage with less current is the norm.

Quote:
Originally Posted by RMK! View Post

I agree and a 15amp rated grounded plug will be fine ...

Quote:
Originally Posted by beastaudio View Post

Sure, but not sure of the "code" in Malaysia, but one of those could easily be retro-fitted to work methinks.

The OS amp is 4000 watts rms.. so, at 230V, you'll need 17.3 A to provide continuous power.... (if i am using my Sub at Max power)... plus, who knows what other wattage the sub itself uses... and it's also rated to burst to 8000 watts. I think in the US, you might need a 30A socket... but here in MY, maybe a 20A might be the minimum requirement.

But if I can fit power cables rated for 25A into the '15A rated ground plug', it might work...
post #9046 of 18370
Quote:
Originally Posted by xyz_123 View Post

I have decided to go with JTR and ordered 3X 212HT.

Are there any in-wall surround speakers that work well with 212HT? I have a slanted ceiling in my media room and it's not possible to use on-wall or floor standing surround speakers.



There are many ways to hang speakers on slanted ceilings, and no in walls that mate with jtr's . However any in wall speaker can be used. If there is a cavity behind the slanted ceiling you can DIY a pair of JTR singles so they are recessed into the cavity, hence in the wall/ceiling. If your handy you can do it .
post #9047 of 18370
Quote:
Originally Posted by coolgeek View Post



The OS amp is 4000 watts rms.. so, at 230V, you'll need 17.3 A to provide continuous power.... (if i am using my Sub at Max power)... plus, who knows what other wattage the sub itself uses... and it's also rated to burst to 8000 watts. I think in the US, you might need a 30A socket... but here in MY, maybe a 20A might be the minimum requirement.

But if I can fit power cables rated for 25A into the '15A rated ground plug', it might work...
If that is the case, you need really big power cable routed from the main circuit breaker of your house to the subwoofer alone if it's going to handle that much of current (which seems super high). eek.gif But you better confirm with Jeff regarding the current drawn.

It would be really sad if the subwoofer cannot be used in Malaysia's typical house. frown.gif
post #9048 of 18370
Let's not forget that just for example a standard 15a plug is rated at 15a because it can do that continuously. Just like amps, your circuit's electrical "burst" rating is more than likely 3-4 TIMES the actual rating on the plug. a typical 15a can supply double the amperage for close to 20 seconds, and quadruple the power in short bursts. Unless you plan on running high level sine waves, you are not going to run into an issue to begin with.
post #9049 of 18370
Hi,

I'm from Singapore and I used 13A for my S1 not sure they use the same amp or not. Btw we can get the power con socket in Singapore for around $10 only.
Let me know if you need any help.
Marcus
post #9050 of 18370
Quote:
Originally Posted by beastaudio View Post

Let's not forget that just for example a standard 15a plug is rated at 15a because it can do that continuously. Just like amps, your circuit's electrical "burst" rating is more than likely 3-4 TIMES the actual rating on the plug. a typical 15a can supply double the amperage for close to 20 seconds, and quadruple the power in short bursts. Unless you plan on running high level sine waves, you are not going to run into an issue to begin with.

This is the kind of posts I kept reading before I had my 2 dedicated 20 amp lines run. Unfortunately it is not enough, I've tripped the breaker once on almost every demo I've done. Granted the levels are insane but still... sucks that it can happen at all.

Don't get me wrong Brandon, smile.gif not saying it was your advice that steered me wrong in fact it was not one person, it was tons of post I read before having the lines run and I can't even name any of them. In fact I think it's my own fault, I didn't take into account how long the run would have to be and I think that is why I can sometimes trip the breaker.
post #9051 of 18370
Quote:
Originally Posted by carp View Post

This is the kind of posts I kept reading before I had my 2 dedicated 20 amp lines run. Unfortunately it is not enough, I've tripped the breaker once on almost every demo I've done. Granted the levels are insane but still... sucks that it can happen at all.

Don't get me wrong Brandon, smile.gif not saying it was your advice that steered me wrong in fact it was not one person, it was tons of post I read before having the lines run and I can't even name any of them. In fact I think it's my own fault, I didn't take into account how long the run would have to be and I think that is why I can sometimes trip the breaker.

But, as I'm sure you already know.... You are not a normal listener biggrin.gif I've got 8 x 20A lines and have never popped a breaker, although I don't generally listen 30dB's over reference LOL
post #9052 of 18370
Well All, tempting sub options to partner with Noesis. Seaton now has the traditional HP, F2 with the 4kw amp and a passive/slave option connected by a speakon connection. So 4-15's with the 4k speaker power amp in 2 enclosures for 4k before shipping
post #9053 of 18370
Quote:
Originally Posted by beastaudio View Post

Let's not forget that just for example a standard 15a plug is rated at 15a because it can do that continuously. Just like amps, your circuit's electrical "burst" rating is more than likely 3-4 TIMES the actual rating on the plug. a typical 15a can supply double the amperage for close to 20 seconds, and quadruple the power in short bursts. Unless you plan on running high level sine waves, you are not going to run into an issue to begin with.
I agree, I run two OS's off the same 20A line with both subs only two clicks back from full on and pretty flat eq and trim and tested extremely loud bass to test the circuit. never tripped yet, in fact the house may shake apart before the 20a (120volt) trips.
post #9054 of 18370
Quote:
Originally Posted by Marcus Gan View Post

Hi,

I'm from Singapore and I used 13A for my S1 not sure they use the same amp or not. Btw we can get the power con socket in Singapore for around $10 only.
Let me know if you need any help.
Marcus

Marcus, is the power con paired with both the 'plug' and the 'wall socket'? No use if it's just the plug, without the wall socket to go with.

Do you have photos? I am certainly interested.

Quote:
Originally Posted by carp View Post

This is the kind of posts I kept reading before I had my 2 dedicated 20 amp lines run. Unfortunately it is not enough, I've tripped the breaker once on almost every demo I've done. Granted the levels are insane but still... sucks that it can happen at all.

Don't get me wrong Brandon, smile.gif not saying it was your advice that steered me wrong in fact it was not one person, it was tons of post I read before having the lines run and I can't even name any of them. In fact I think it's my own fault, I didn't take into account how long the run would have to be and I think that is why I can sometimes trip the breaker.

Quote:
Originally Posted by lbrown105 View Post

I agree, I run two OS's off the same 20A line with both subs only two clicks back from full on and pretty flat eq and trim and tested extremely loud bass to test the circuit. never tripped yet, in fact the house may shake apart before the 20a (120volt) trips.

Lots of different opinions here... I think I'll rather err on the side of safety and not burn my house down.. haha... but I am sure 15A would work, but then, well, if I can, I'll definitely get some dedicated 20A lines connected. I just don't want the 'socket' to be the 'weak point'.. If I am getting 20A lines laid out, I might as well make sure the entire chain is rated 20A...

BTW: Anyone knows if the OS has it's own protection for voltage spikes? Because if i am to get a 5000 VA voltage stabilizer, it'll cost me a bomb....
post #9055 of 18370
Quote:
Originally Posted by N8DOGG View Post

But, as I'm sure you already know.... You are not a normal listener biggrin.gif I've got 8 x 20A lines and have never popped a breaker, although I don't generally listen 30dB's over reference LOL

Touché... biggrin.gif

Hey wait a minute... I'm willing to bet you have kicked my a$$ in the spl department in your room! smile.gif
post #9056 of 18370
Quote:
Originally Posted by staaled View Post

Completed my payment today, so hope to hear from Jeff some time soon.

I would also like to get one of those JTR logo panels, but cant find where to get one.

Got it, Santando81.
Edited by staaled - 8/2/13 at 4:59am
post #9057 of 18370
Quote:
Originally Posted by carp View Post

This is the kind of posts I kept reading before I had my 2 dedicated 20 amp lines run. Unfortunately it is not enough, I've tripped the breaker once on almost every demo I've done. Granted the levels are insane but still... sucks that it can happen at all.

Don't get me wrong Brandon, smile.gif not saying it was your advice that steered me wrong in fact it was not one person, it was tons of post I read before having the lines run and I can't even name any of them. In fact I think it's my own fault, I didn't take into account how long the run would have to be and I think that is why I can sometimes trip the breaker.

Perhaps that is it. I had my 20a plugs put on 10ga lines and a 30a breaker in the box, so technically, I am running two 30a lines, with just a 20a plug at the end which doesn't bottleneck the power on tap at all from what I can tell. Are you running the cv5k on one plug and everything else on the other?
post #9058 of 18370
Quote:
Originally Posted by coolgeek View Post

Marcus, is the power con paired with both the 'plug' and the 'wall socket'? No use if it's just the plug, without the wall socket to go with.

Do you have photos? I am certainly interested.

Lots of different opinions here... I think I'll rather err on the side of safety and not burn my house down.. haha... but I am sure 15A would work, but then, well, if I can, I'll definitely get some dedicated 20A lines connected. I just don't want the 'socket' to be the 'weak point'.. If I am getting 20A lines laid out, I might as well make sure the entire chain is rated 20A...

BTW: Anyone knows if the OS has it's own protection for voltage spikes? Because if i am to get a 5000 VA voltage stabilizer, it'll cost me a bomb....

Not sure I understand what you are asking but the Powercon connector only takes care of the OS end of the power cable. You will need to attach the appropriate connector to match your outlet to the other end.

The OS amp has a ceramic fuse that should protect the amp from power spikes.
post #9059 of 18370
Quote:
Originally Posted by carp View Post

This is the kind of posts I kept reading before I had my 2 dedicated 20 amp lines run. Unfortunately it is not enough, I've tripped the breaker once on almost every demo I've done. Granted the levels are insane but still... sucks that it can happen at all.
Was this with the amp in the SubM HPs which are Speakerpower amps or are you referring to the CV that you currently have . The reason I ask is the Speakerpower amps are extremely efficient and the CV is not. I have 2 SubM HPs plugged into a single 20 amp and Never tripped a breaker with the subs (knock on wood). When it comes to drawing power from the outlet and delivering it to the subwoofer Speakerpower amps are on a different level then almost all pro amps.
Chris
post #9060 of 18370
Quote:
Originally Posted by beastaudio View Post

Perhaps that is it. I had my 20a plugs put on 10ga lines and a 30a breaker in the box, so technically, I am running two 30a lines, with just a 20a plug at the end which doesn't bottleneck the power on tap at all from what I can tell. Are you running the cv5k on one plug and everything else on the other?

I'm no electrician, but i can't help but think that it is somewhat dangerous with the 30a breaker in the box, and 20a rated plugs and outlet?
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