LMS-5400 buy-in - Page 10 - Home Theater Forum and Systems - HomeTheaterShack.com

 
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post #91 of 312 Old 09-06-07, 03:15 PM
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Re: LMS-5400 / RL-p18" buy-in

Quote:
WillyD wrote: View Post
Aww man, you got Ti cones for your TC-2000s! I just got the slightly better Alu when I got my new surround assembly.
Yes, it was a special deal they gave me. I doubt there are many TC2Ks with Ti cones.

Quote:
Oh well, I do look forward to you installing those (I love how easy it is to remove/install the top assemblies on these 2Ks) and testing them out as well. I suppose the last testing session you do this fall will be quite interesting (aren't they all?).
I like it too, but you should see the LMS...oh man. The whole top assembly is like a big nut that attaches to the motor. It's really cool.

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post #92 of 312 Old 09-06-07, 03:18 PM
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Re: LMS-5400 / RL-p18" buy-in

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Geoff St. Germain wrote: View Post
Cool stuff. So it's one LMS 5400 w/ two PRs and one sealed?
I will have to think about it. It depends whether I have enough time to make those boxes before the fall really sets in here in Finland.
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post #93 of 312 Old 09-06-07, 03:20 PM
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Re: LMS-5400 / RL-p18" buy-in

Come on Willy... Pun was intended in my post nothing bad, indeed your post was technically very correct

ASME AI
Yamaha RX-V2500, Wharfedale Diamond 9.6 Fronts, Wharfedale Diamond CM Center, Diamond DFS Surround and rear, Behringer FBQ 2496, Dual RL-P18s 625L LLTs, Dual TA-2400 Pro (2 * 2000 W Amp), Samsung HD870 DVD player, Carada BW 16:9 106" screen, Epson TW-2000, 60 Gb PS3
Important HT proverbs:
- "You can never have too much headroom" (talking about bass)
- "you can never have too big a screen" (talking about still pictures)


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post #94 of 312 Old 09-06-07, 06:39 PM
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Re: LMS-5400 / RL-p18" buy-in

I cant wait for these to be tested! I wonder if the black ti cone affects ts parameters for the 2000 vs the aluminum cone?
post #95 of 312 Old 09-06-07, 07:16 PM
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Re: LMS-5400 / RL-p18" buy-in

I took some quick FR measurements before I hit the pillow.

Here's the 18" LMS-5400, straight out of the box, near field frequency response. I have to say it's easily the flattest I've ever measured (among these high-excursion woofers). After some "break in", it may become even flatter. Also shows that the real world inductance is extremely low. For example the TC-2000 has smaller/similar Ls and Lp values, but measures considerably worse when it comes to FR linearity.

I may have a new favourite woofer.

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post #96 of 312 Old 09-06-07, 10:44 PM Thread Starter
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Re: LMS-5400 / RL-p18" buy-in

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I may have a new favourite woofer.
Yeah!.. it might only be a dream at this point with the way things are going with TC??

Looking really good Ilkka. Any chance of posting a pic of the LMS up front?
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post #97 of 312 Old 09-06-07, 11:14 PM
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Re: LMS-5400 / RL-p18" buy-in

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Ilkka wrote: View Post
Regarding those passive radiators. Mine have only single 10" spider; someone over at AVS posted pics of his PRs, and they have dual spiders? Maybe those are newer ones?

Also how many washers there should be? I have only 10 for each PR. That doesn't make more than ~1170g with the nut. Jai?
Hi Buddy,
I just got your email and sorry I have not been that active at avs or here since I have been so busy with work. So about the PRs, you do need more washers and TC did not send me enough and I had to request more. I stopped at our local Home Depot Store (a common store in the US) and they did not have washers that size.
I requested more from Kyle and he promptly shipped me more. I think you will need a lot more than 10, so bug TC to send you more. With the way things are going with them, I don't know how lucky you will be, but make a big noise as those folks should know better. What the while shipping overseas why not send out more washers. I hate it, when such things happen. In the meantime, can you come up with something creative about adding more weights? It doesn't have to be washers you see !
I looked at the FR and was not surprised at all. My ears don't lie . These are killer woofers and that is the very same reason I wanted to fund this measurement and I wanted to see the real deal in your scale. When I see good stuff, I know it and I pull the trigger and so I did at the apt time. WHat an awesome amazing sounding woofer. Please post more measurements soon. Oh, I also think you should keep these woofers and not give them away or sell them. They are one of a kind. JUst remember this lowly guy here, who motivated you on these woofers because of my first DIY subwoofer project.
How is the CE4000 performing?
I have this innate nature in me, where I am good at zeroing in on good stuff. Quality stuff. I have been wrong only very few times. So my gut says, you made a good choice with the CE4000 too.
Look forward for more results !!!
Kind regards,
-Jai
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post #98 of 312 Old 09-06-07, 11:18 PM
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Re: LMS-5400 / RL-p18" buy-in

Quote:
Ilkka wrote: View Post
Yes, it was a special deal they gave me. I doubt there are many TC2Ks with Ti cones.


I like it too, but you should see the LMS...oh man. The whole top assembly is like a big nut that attaches to the motor. It's really cool.

I used to lift heavy weights and turning that thing off the cone requires some serious torque.
How did you do it? It took me a few tries before I got the sucker off. I had to replace a cone and VC that I misaliged becuase of not using a HP filter.
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post #99 of 312 Old 09-06-07, 11:39 PM
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Re: LMS-5400 / RL-p18" buy-in

Ilkka,

"Regarding those passive radiators. Mine have only single 10" spider; someone over at AVS posted pics of his PRs, and they have dual spiders?"

IMO that's a good thing.

A little bit of cone rocking (which dual spiders are meant to prevent) won't hurt anything and the lower the suspension stiffness/Fs of a PR, the better.
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post #100 of 312 Old 09-07-07, 12:18 AM
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Re: LMS-5400 / RL-p18" buy-in

Quote:
Yes, it was a special deal they gave me. I doubt there are many TC2Ks with Ti cones.
Aye! Probably just yours. They teased me about it and I thought I was gonna get one, but nope. Oh well.

Quote:
like it too, but you should see the LMS...oh man. The whole top assembly is like a big nut that attaches to the motor. It's really cool.
What a monster!

Quote:
Here's the 18" LMS-5400, straight out of the box, near field frequency response. I have to say it's easily the flattest I've ever measured (among these high-excursion woofers). After some "break in", it may become even flatter. Also shows that the real world inductance is extremely low. For example the TC-2000 has smaller/similar Ls and Lp values, but measures considerably worse when it comes to FR linearity.
Good god! That is beautiful!

38mm xmax, good bl, AND a really low real world inductance? Unbelievable. Man, the tests of these badboys are going to be kickass.


Quote:
steve nn wrote: View Post
Yeah!.. it might only be a dream at this point with the way things are going with TC??

Looking really good Ilkka. Any chance of posting a pic of the LMS up front?
There is always audiopulse!

Quote:
I requested more from Kyle and he promptly shipped me more. I think you will need a lot more than 10, so bug TC to send you more. With the way things are going with them, I don't know how lucky you will be, but make a big noise as those folks should know better. What the while shipping overseas why not send out more washers. I hate it, when such things happen. In the meantime, can you come up with something creative about adding more weights? It doesn't have to be washers you see !
He could just use some local washers, eh?
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