Sealed Stereo Integrity HT-18D2 [build thread] - Page 3 - AVS Forum
Forum Jump: 
 1Likes
Reply
 
Thread Tools
post #61 of 72 Old 01-24-2013, 07:52 AM - Thread Starter
AVS Special Member
 
baniels's Avatar
 
Join Date: Oct 2006
Location: 52556
Posts: 1,011
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 32 Post(s)
Liked: 44
No - I was able to sell that. I'm using an iNuke NU6000 + Mini DSP.
Quote:
Originally Posted by JohnDean View Post

What amp did you end up with, still using the Bash500?


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

baniels is online now  
Sponsored Links
Advertisement
 
post #62 of 72 Old 01-26-2013, 09:56 AM - Thread Starter
AVS Special Member
 
baniels's Avatar
 
Join Date: Oct 2006
Location: 52556
Posts: 1,011
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 32 Post(s)
Liked: 44
2nd driver arrived in good shape this morning. My helper was as excited as I was.


Boomassiv likes this.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

baniels is online now  
post #63 of 72 Old 02-01-2013, 07:10 AM - Thread Starter
AVS Special Member
 
baniels's Avatar
 
Join Date: Oct 2006
Location: 52556
Posts: 1,011
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 32 Post(s)
Liked: 44
Thought I'd share this. Comparison of 1 vs 2 subs. No EQ, no Audyssey, no crossover in place.



I'm going to remeasure this weekend. One of my mdat files with post-Audyssey measurements got corrupted somehow.

I posted this graph earlier - this is pre and post Audyssey when I had just the first sub. There is way too much <15hz boost in my opinion. Here's my question - if I apply an HPF before I run Audyssey to discourage it from boosting so aggressively in the ULF, would I potentially have phase issues if I disable the HP afterward? Second scenario being I start with a steep 4th order and change to 2nd order after Audyssey.

I've read that HPF's can influence phase in the passed region. If Audyssey does it's job right with my distances and whatever time-domain stuff it does, I could potentially throw it out of wack by disabling the HP. Is that a correct understanding? My Onkyo has MultEQ XT. My goal is not to kill all the LF stuff, but rather let the sealed boxes do their rolloff job to protect the drivers. Audyssey wants none of that and thinks I should be flat to 5hz or lower.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

baniels is online now  
post #64 of 72 Old 02-01-2013, 07:26 AM
AVS Special Member
 
NicksHitachi's Avatar
 
Join Date: Jul 2007
Location: Wilmington, NC
Posts: 3,633
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 95 Post(s)
Liked: 143
I always EQ over Audyssey as I find it gets close but I can do better.

Just apply a 1st order butterworth where you want it to start rolling off after the Audyssey does its thing. The "phase" issue introduced should be unimportant, especially since your interested in decreasing output.

You can see the phase implications by looking at the group delay plot. Anywhere you apply significant eq prob indroduces some GD.
NicksHitachi is online now  
post #65 of 72 Old 02-01-2013, 07:26 AM
AVS Special Member
 
brian6751's Avatar
 
Join Date: Mar 2006
Location: Canton, MI
Posts: 3,349
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Liked: 112
is that Post Audyssey sweep with Dynamic EQ on or off?

Xbox One Gamertag = The Barbeerian

PS4 PSNID = The-Barbeerian
brian6751 is offline  
post #66 of 72 Old 02-01-2013, 08:49 AM - Thread Starter
AVS Special Member
 
baniels's Avatar
 
Join Date: Oct 2006
Location: 52556
Posts: 1,011
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 32 Post(s)
Liked: 44
Off. My receiver doesn't have it. TX-SR805.
Quote:
Originally Posted by brian6751 View Post

is that Post Audyssey sweep with Dynamic EQ on or off?


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

baniels is online now  
post #67 of 72 Old 02-01-2013, 09:05 AM
AVS Special Member
 
zheka's Avatar
 
Join Date: Jan 2007
Location: Chicago burbs
Posts: 1,049
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 16
are you using inuke DSP to drive the subs? then just set the limiters to whatever you think is safe power level.


that curve looks rather mild to me. if anything you may want to make it steeper for the equal loudness contour match.
zheka is offline  
post #68 of 72 Old 02-01-2013, 09:47 AM - Thread Starter
AVS Special Member
 
baniels's Avatar
 
Join Date: Oct 2006
Location: 52556
Posts: 1,011
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 32 Post(s)
Liked: 44
I've got the non-DSP version. Already had a Mini DSP.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

baniels is online now  
post #69 of 72 Old 02-01-2013, 12:25 PM
AVS Special Member
 
zheka's Avatar
 
Join Date: Jan 2007
Location: Chicago burbs
Posts: 1,049
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 16
Quote:
Originally Posted by baniels View Post

I've got the non-DSP version. Already had a Mini DSP.

perhaps you can get the same result with gain controls. 2000W per driver may be a bit too hot even without any EQ boost.

i think for sealed boxes, a better way to protect drivers is to make the system power limited before the driver excursion limits are reached.

My understanding is that as a safety device HPF are mostly used for vented subs where drivers may unload with very modest power applied.
zheka is offline  
post #70 of 72 Old 02-11-2013, 07:42 AM - Thread Starter
AVS Special Member
 
baniels's Avatar
 
Join Date: Oct 2006
Location: 52556
Posts: 1,011
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 32 Post(s)
Liked: 44
Granite complete.





I had to go with a new placement. I had originally placed the speakers on the outside of the subs. There were some nasty dips between 50 and 90 hz from the mains as a result. Swapping the placement with the mains took care of it. The subs are now seeing a dip at around 65 hz, but it is narrower. I may experiment a little more with placement of the subs, but I don't have a lot of options. It sounds darn good though.

New placement


Mains inside the subs vs outside the subs.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

baniels is online now  
post #71 of 72 Old 02-11-2013, 10:55 AM
Senior Member
 
DIESEL758's Avatar
 
Join Date: Jul 2012
Posts: 201
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 10
What are the external measurements of the box??

DIESEL758 is offline  
post #72 of 72 Old 02-11-2013, 10:57 AM
Senior Member
 
DIESEL758's Avatar
 
Join Date: Jul 2012
Posts: 201
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 10
Never mind didn't see the link to the build. Thanks

DIESEL758 is offline  
Reply DIY Speakers and Subs

User Tag List

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


Forum Jump: 

Posting Rules  
You may not post new threads
You may not 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 code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off