Dual RL-P18 LLT for my 2000 cu ft HT soon - Page 10 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #91 of 183 Old 06-11-07, 06:06 PM Thread Starter
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Hi all,

I have almost completed (painting only still not applied) and performed some listening tests for my project... The initial results are very positive...Photos and FRs will follow most probably tomorrow

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post #92 of 183 Old 06-11-07, 07:41 PM
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Quote:
The initial results are very positive...Photos and FRs will follow most probably tomorrow
Way cool! I'll buy a bag of popcorn on the way home tomorrow in anticipation.
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post #93 of 183 Old 06-12-07, 04:14 PM Thread Starter
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Hi all,

I have now some time to post some pics and FR.

I ended with a 630 L approx tuned to 13.5 Hz pwered by ???? you'll see
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Dual RL-P18 LLT for my 2000 cu ft HT soon-dsc00173.jpg  

Dual RL-P18 LLT for my 2000 cu ft HT soon-dsc00177.jpg  

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post #94 of 183 Old 06-12-07, 04:24 PM Thread Starter
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Front baffle is dual 25mm thick, with driver flush mounted and port flared externally by 25mm.

1"*1" Braces were used on the walls each 30 cm, and two lateral braces were applied perpendicular to the largest wall 107cm * 70 cm.
Attached Thumbnails
Dual RL-P18 LLT for my 2000 cu ft HT soon-dsc00189.jpg  

Dual RL-P18 LLT for my 2000 cu ft HT soon-dsc00200.jpg  

Dual RL-P18 LLT for my 2000 cu ft HT soon-dsc00195.jpg  

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post #95 of 183 Old 06-12-07, 04:56 PM Thread Starter
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Here is the FR....Red is equalized,more info will come about the design and the T amp soon.
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Dual RL-P18 LLT for my 2000 cu ft HT soon-dual-rlp-18-fr.jpg  


Last edited by Blaser; 06-12-07 at 06:29 PM.
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post #96 of 183 Old 06-12-07, 05:16 PM Thread Starter
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Before I have any comments I would like to thank each and every one on this forum who has participated in this thread, as well as given precious advice to me. Thanks also to Steve Callas who's famous article was behind this upgrade project, as well as his help.

Special thanks to Ilkka who has help me and teached me how to design a sub. I have been in communication with him for months and he never let me feel anytime he was fed up or so....Thank you Ilkka.

Ilkka was also behind my choice of the T-amp 2400....rated 2000 W into 8 ohms bridged. The manufacturer doesn't tell the 4 ohm power but it was measured and it will be around 2200-2300W RMS at 4 ohs bridged with quite low distrotion.

I am using it bridged at 4 ohms

I have hit 126 db uncorrected in room on some music material today at listening pos...4 m away from subs.

This Amp is weighing 25 Kg net I got this delivered for less than the price of the Ep-2500...but that's in Egypt. This amp was used in the famous tests by Ilkka.

I will add another one, not because I need more bass, but because I see this amp is a steel for its specs.

More posts will come about my impressions....

Last edited by Blaser; 06-12-07 at 06:18 PM.
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post #97 of 183 Old 06-12-07, 05:34 PM Thread Starter
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Here is the FR with mains for music and movie configurations
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Dual RL-P18 LLT for my 2000 cu ft HT soon-fr-mains-music-movbie-configurations....music-isthe-hot-one.jpg  

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post #98 of 183 Old 06-12-07, 05:56 PM
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Looks good blaser.

Is the response you posted with both subs together?

Did you find any problems that were created or solved by having two?

I really think you should have sat inside one to get a picture.....

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post #99 of 183 Old 06-12-07, 05:56 PM Thread Starter
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Here are the mains, see the room effect...
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post #100 of 183 Old 06-12-07, 06:01 PM Thread Starter
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Re: Dual RL-P18 LLT for my 2000 cu ft HT soon

Quote:
brucek wrote: View Post
Looks good blaser.

Is the response you posted with both subs together?

Did you find any problems that were created or solved by having two?

I really think you should have sat inside one to get a picture.....

brucek
Yes, this is both subs running.

Problems solved? yes definitely! That weird difference of 6 db between my left and right at 45-60 Hz is now gone....See the photo and you will understand why I am now feeling what a wall of bass is!!!

I gain 6 db up to 80 Hz compared to a single sub....The sound is amazing so simple as that

Last edited by Blaser; 06-12-07 at 06:09 PM.
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