My 15" Q LLT - Home Theater Forum and Systems - HomeTheaterShack.com

 
Thread Tools
post #1 of 9 Old 09-24-07, 04:43 PM Thread Starter
Senior Shackster
Steve
 
Join Date: Jan 2007
Location: Shoreview Minnesota
Posts: 306
My 15" Q LLT

I built this like ~3 months ago, it is finally settling into its new place in my house. It is a FI Q 15" Dual1 in a ~11.5 cuft box, tuned to ~12hz (ended up being a bit lower then i wanted but I'm not complaining). It is powered by a EP2500 and a modded Art Cleanbox, yes that is a ground loop isolator I hate using it but for the life of me I couldn't get rid of the loop.

www.ccdoggy.net/room/shrunk

It sounds phenomenal in room and it has a super flat response. Everyone i show it to are dumbfounded on the sheer size and output it has.

Yes I know there are problems with my setup, I'm still in college and did what I could with the money I have at my disposal for audio. And yes the edge does need to be cleaned up between the silver and the black border, that was a mistake. And as everyone knows the camera tends to pickup more finger prints and dirt then anyone would ever see.

I really hope to be using more of you're drivers in the future, especially since I have an extra channel on the EP2500 to still fill. Thanks for making such a great driver at such a great price!


Last edited by ccdoggy; 09-24-07 at 05:55 PM.
ccdoggy is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 09-24-07, 05:20 PM
Elite Shackster
 
Sonnie's Avatar
 
Join Date: Apr 2006
Location: L.A. (Lower Alabama)
Posts: 22,577
My System
Re: My 15" Q LLT

Hey Steve... those images are deathly slow to load on my super fast broadband connection here at the office. I can only imagine how slow it is for the majority of our users. The images are so large, I didn't take the time to download more than one of them. You might think about uploading those to our Image Gallery and making them smaller.
Sonnie is offline  
post #3 of 9 Old 09-24-07, 05:44 PM Thread Starter
Senior Shackster
Steve
 
Join Date: Jan 2007
Location: Shoreview Minnesota
Posts: 306
Re: My 15" Q LLT

shrunk and new link and posted in the gallery.

Thanks!

Last edited by ccdoggy; 09-24-07 at 05:56 PM.
ccdoggy is offline  
 
post #4 of 9 Old 09-24-07, 06:47 PM
Elite Shackster
 
Sonnie's Avatar
 
Join Date: Apr 2006
Location: L.A. (Lower Alabama)
Posts: 22,577
My System
Re: My 15" Q LLT

Congrats on the build... I do agree that you need to tidy up things a bit, but then again I remember those days when I was college age myself.

Have you taken any measurements with REW? How did you test your tuning frequency?
Sonnie is offline  
post #5 of 9 Old 09-24-07, 10:46 PM Thread Starter
Senior Shackster
Steve
 
Join Date: Jan 2007
Location: Shoreview Minnesota
Posts: 306
Re: My 15" Q LLT

Well i found my tuned freq by a very scientific method. I played different tones generated by my computer and found where the most air was moving out of my port. I did take some measurments with rew and it came out pretty nice (rs meter), and i really like how it sounds.

Ill see if i can get it re measured tomorrow and post a graph or two.
ccdoggy is offline  
post #6 of 9 Old 09-24-07, 11:39 PM
Senior Shackster
Will
 
Join Date: Sep 2006
Location: Matthews, NC
Posts: 521
Send a message via AIM to WillyD Send a message via Skype™ to WillyD
Re: My 15" Q LLT

Quote:
Well i found my tuned freq by a very scientific method. I played different tones generated by my computer and found where the most air was moving out of my port.
Well that would actually be a few Hz below your real tuning frequency, so you are probably around 15Hz.

Nice build, btw. The way you did the port looks cool. I really like these fi-car drivers being utilized.
WillyD is offline  
post #7 of 9 Old 09-24-07, 11:44 PM Thread Starter
Senior Shackster
Steve
 
Join Date: Jan 2007
Location: Shoreview Minnesota
Posts: 306
Re: My 15" Q LLT

really, huh good info thanks!

wow did i actually swear in that other post? i dident think i did at all. thats weird...
ccdoggy is offline  
post #8 of 9 Old 09-24-07, 11:57 PM
Senior Shackster
Will
 
Join Date: Sep 2006
Location: Matthews, NC
Posts: 521
Send a message via AIM to WillyD Send a message via Skype™ to WillyD
Re: My 15" Q LLT

Quote:
ccdoggy wrote: View Post
really, huh good info thanks!

wow did i actually swear in that other post? i dident think i did at all. thats weird...
Yeah. You had the right idea with test tone method, but for future reference you're supposed to find the frequency at which the driver is moving using the least amount of excursion.
WillyD is offline  
post #9 of 9 Old 09-25-07, 07:30 PM Thread Starter
Senior Shackster
Steve
 
Join Date: Jan 2007
Location: Shoreview Minnesota
Posts: 306
Re: My 15" Q LLT

ahh that makes even more sense.

the excursion of this driver at 12hz and only 1000 watts is just amazing.
ccdoggy is offline  
Reply

Bookmarks

Tags
llt , my 15

Quick Reply
Message:
Options

Register Now




PLEASE COMPLETE ALL REQUIRED FIELDS BELOW... THANKS!

REQUIRED FIELDS ON THIS PAGE
YOU MUST COMPLETE ALL OF THESE

Username
Password
Confirm Password
Email Address
Confirm Email Address
Random Question
Random Question #2




User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
PLEASE READ BELOW PRIOR TO ENTERING AN EMAIL ADDRESS!

ATTENTION!

YOU MUST ACTIVATE YOUR ACCOUNT!

Activation requires you reply to an email we will send you after you register... if you do not reply to this email, you will not be able to view certain areas of the forum or certain images... nor will you be able download software.

AN INVALID EMAIL ADDRESS WILL CAUSE YOUR ACCOUNT TO BE DELETED!

See our banned email list here: Banned Email List

We DO NOT respond to spamcop, boxtrapper and spamblocker emails... please add @hometheatershack DOT com to your whitelist prior to registering or you will get nowhere on your registration.


Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML is not allowed!
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


For the best viewing experience please update your browser to Google Chrome