12" JBL speaker $29 on black friday at Bestbuy - Page 62 - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 923Likes
Reply
 
Thread Tools
post #1831 of 2494 Old 03-28-2019, 09:39 AM
Member
 
Join Date: Apr 2018
Posts: 111
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 50 Post(s)
Liked: 19
Audysssey results with 4 single sub sealed boxes

Here are the results from my 4 subs, the Audyssey results were verified by REW and are indeed that flat from about 23hz to 120hz in my room. I am using a Behringer NX3000D and applying a fair amount of correction to get these results. I do seem to have a bit of drone at certain frequencies but I haven't looked at the REW results to see what frequency is causing this.
Attached Thumbnails
Click image for larger version

Name:	IMG_1108.PNG
Views:	61
Size:	231.2 KB
ID:	2545408  
OJ Bartley likes this.
Bottlemech2 is offline  
Sponsored Links
Advertisement
 
post #1832 of 2494 Old 03-28-2019, 12:21 PM
AVS Forum Special Member
 
DavidK442's Avatar
 
Join Date: Apr 2010
Location: British Columbia, Canada
Posts: 1,671
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
Quoted: 876 Post(s)
Liked: 733
Quote:
Originally Posted by Bottlemech2 View Post
Here are the results from my 4 subs, the Audyssey results were verified by REW and are indeed that flat from about 23hz to 120hz in my room. I am using a Behringer NX3000D and applying a fair amount of correction to get these results. I do seem to have a bit of drone at certain frequencies but I haven't looked at the REW results to see what frequency is causing this.
If you have truly applied enough EQ to flatten a 10db room cancellation at 70hz I would start looking there for your source of drone.
DavidK442 is online now  
post #1833 of 2494 Old 03-28-2019, 03:08 PM
Senior Member
 
Chris Popovich's Avatar
 
Join Date: Dec 2005
Location: Phoenix AZ
Posts: 365
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 179 Post(s)
Liked: 158
Room correction is an awesome thing but it's not perfect.

One thing that I've found is that if you have a big null, it's ok to make it go away by changing different sub position/phase settings, within reason, but it's a terrible idea to make it go away by filling in the hole, even if you have enough power and eq to do so. The room eq is not always smart enough to know this, particularly with some of these high output systems.

The fix, so far for me, has been to get a decent average freq response and make the target curve somewhat follow if there are nulls. I.e. I have a 70hz suckout on one of my systems and enough horsepower to fill it, but it sounds absolutely terrible if I do, as it's an enormous eq peak and the whole room outside that listening position has some serious reverb issues... sounds much better to just jog down on target response 5dB or so right in the area of the null. This is harder to do with Audyssey but you can always do after with a minidsp, the room modes aren't going to change.
OJ Bartley likes this.
Chris Popovich is offline  
Sponsored Links
Advertisement
 
post #1834 of 2494 Old 03-28-2019, 05:33 PM
Member
 
Join Date: Feb 2019
Posts: 58
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Liked: 24
Wondering about what limiters I should set on my inuke 1000dsp?

@EndersShadow told me about the 22hz high pass (1 jbl, 4 cu ft. tuned to 22hz, 2 4" ports).

I am wondering what the suggest wattage limiter should be. At 500 watts the driver seems to be at maximum excursion at about 35hz. I'd like to set a limiter where I'd be safe at any volume and gain.

I read somewhere that the limiter can be too conservative however and really hold back the performance.

Also, in the same vein, is it better to run it bridged (with a limiter) or a single channel wide open (which would keep it naturally below 500 watts). I heard that driving only a single channel can be detrimental to the amp.
CheapSpeakerGuy is offline  
post #1835 of 2494 Old 03-28-2019, 05:35 PM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
Quote:
Originally Posted by CheapSpeakerGuy View Post
I heard that driving only a single channel can be detrimental to the amp.
I asked the same question (on AVS) and was told (in no uncertain terms) that it is not a problem.
Michael

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786
LastButNotLeast is offline  
post #1836 of 2494 Old 03-29-2019, 10:50 AM
AVS Forum Special Member
 
jcmccorm's Avatar
 
Join Date: Mar 2001
Location: Madison, AL, USA
Posts: 4,519
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 607 Post(s)
Liked: 458
Dual DWS12

Has anyone looked at these for BOSS duty? The price is right. I can't find any specs on them though besides what's posted at WallyWorld.

They are 4ohm, 250Wrms, 28Hz-125Hz, 2" coil, 88db sensitivity.

If they're just used for a BOSS platform, might not be bad. Anyone have any specs besides what's here?

https://www.walmart.com/ip/Dual-Elec...ower/135496328
jcmccorm is offline  
post #1837 of 2494 Old 03-29-2019, 11:22 AM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
Here's a little more:
http://www.dualav.com/mobileaudio/dls12.php
Michael

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786
LastButNotLeast is offline  
post #1838 of 2494 Old 03-29-2019, 12:38 PM
AVS Forum Special Member
 
DavidK442's Avatar
 
Join Date: Apr 2010
Location: British Columbia, Canada
Posts: 1,671
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
Quoted: 876 Post(s)
Liked: 733
Quote:
Originally Posted by jcmccorm View Post
Dual DWS12

Has anyone looked at these for BOSS duty? The price is right. I can't find any specs on them though besides what's posted at WallyWorld.

They are 4ohm, 250Wrms, 28Hz-125Hz, 2" coil, 88db sensitivity.

If they're just used for a BOSS platform, might not be bad. Anyone have any specs besides what's here?

https://www.walmart.com/ip/Dual-Elec...ower/135496328
With a resonance frequency of 24 hz they should rumble nice and low in the open baffle platform.
One key spec they do not provide however is the maximum excursion, which coupled with cone area (or in the case of the tactile platform, cone mass) dictates output. Cheap enough to just add more if you can fit them under/around the seating.
DavidK442 is online now  
post #1839 of 2494 Old 03-29-2019, 12:50 PM
AVS Forum Special Member
 
jcmccorm's Avatar
 
Join Date: Mar 2001
Location: Madison, AL, USA
Posts: 4,519
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 607 Post(s)
Liked: 458
Quote:
Originally Posted by DavidK442 View Post
With a resonance frequency of 24 hz they should rumble nice and low in the open baffle platform.
One key spec they do not provide however is the maximum excursion, which coupled with cone area (or in the case of the tactile platform, cone mass) dictates output. Cheap enough to just add more if you can fit them under/around the seating.
Thanks Michael for the link! That's for the DLS12 vs the DWS12 but I have no idea if they are different or the same. They sure look the same.

That's what I was thinking David. No xmax gives me some hesitation. Slightly lower Fs though compared to the JBLs. It might be worth $23ea to try it.

I guess I could be the guinea pig. Dang you guys. I can't find my way out of this rabbit hole....
jcmccorm is offline  
post #1840 of 2494 Old 03-29-2019, 03:12 PM
Senior Member
 
Chris Popovich's Avatar
 
Join Date: Dec 2005
Location: Phoenix AZ
Posts: 365
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 179 Post(s)
Liked: 158
There are some pretty entertaining youtube vids about the Dual subs. I'm game for budget setups but I'll go ahead and hard pass on that one.


Chris Popovich is offline  
post #1841 of 2494 Old 03-29-2019, 05:37 PM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
Quote:
Originally Posted by Chris Popovich View Post
I'm game for budget setups but I'll go ahead and hard pass on that one.
The attraction of the JBL is that it's a good sub at a real discount price. Discontinued, but good nonetheless.
Michael

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786
LastButNotLeast is offline  
post #1842 of 2494 Old 03-29-2019, 05:44 PM
Senior Member
 
Chris Popovich's Avatar
 
Join Date: Dec 2005
Location: Phoenix AZ
Posts: 365
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 179 Post(s)
Liked: 158
I'm not sure why you're stating that to me. I have a couple dozen of them. For me the attraction was sound quality and displacement capability within a reasonable budget when used in huge quantities. It's a pretty decent little sub, and only a big company like Harmon could stamp these suckers out for that sort of coin.

BTW the CS1214 is "discontinued" which means they got tired of the dustcap. CX1200 and GX1200 are the same thing. The driver we love is alive and well brother, you don't have to go slumming just yet. lol

Last edited by Chris Popovich; 03-29-2019 at 06:02 PM.
Chris Popovich is offline  
post #1843 of 2494 Old 03-29-2019, 05:53 PM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
Not slumming, just not willing to pay $65 for it when I know it was/will probably be $30. In the meantime, since Harman couldn't replace my DOA recert (giving me a refund and a shipping label, though), I ordered it from Walmart Tuesday night. They have a shipping label for it as of Thursday night, but as of now (Friday night), UPS hasn't picked it up. Very frustrating, since I have eight in the box and would really like to finish things up. Scheduled to arrive Wednesday. I've gotten stuff from China faster than that.

Michael

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786
LastButNotLeast is offline  
post #1844 of 2494 Old 03-29-2019, 06:01 PM
Senior Member
 
Chris Popovich's Avatar
 
Join Date: Dec 2005
Location: Phoenix AZ
Posts: 365
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 179 Post(s)
Liked: 158
Ah. Gotcha. I don't have any "spares" meaning I will find a use for all I have, but I do have plenty just waiting for my projects to come to fruition, I could have loaned you one (you send me your new one once it comes in).

Yeah sometimes things just take a long time for no good reason.
Chris Popovich is offline  
post #1845 of 2494 Old 03-29-2019, 08:26 PM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
I appreciate the offer. If only Harman had been as helpful.
It is what it is.

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786
LastButNotLeast is offline  
post #1846 of 2494 Old 03-30-2019, 03:10 AM
Senior Member
 
dTorC4's Avatar
 
Join Date: Nov 2009
Posts: 206
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 86 Post(s)
Liked: 146
Quote:
Originally Posted by Chris Popovich View Post
There are some pretty entertaining youtube vids about the Dual subs. I'm game for budget setups but I'll go ahead and hard pass on that one.
I is more stupider now for watching that video.
Chris Popovich likes this.
dTorC4 is offline  
post #1847 of 2494 Old 03-30-2019, 05:26 AM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
There is justice

On sale NOW:
https://www.bestbuy.com/site/jbl-gx-series-12-single-voice-coil-4-ohm-subwoofer-black/6283643.p?skuId=6283643
Will pick up two later today from my local store. Walmart can keep there f*ing label (no, still not shipped).

Michael
dTorC4 and bubbrik like this.

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786

Last edited by LastButNotLeast; 03-30-2019 at 05:30 AM.
LastButNotLeast is offline  
post #1848 of 2494 Old 03-30-2019, 06:25 AM
AVS Forum Special Member
 
jcmccorm's Avatar
 
Join Date: Mar 2001
Location: Madison, AL, USA
Posts: 4,519
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 607 Post(s)
Liked: 458
Quote:
Originally Posted by LastButNotLeast View Post
On sale NOW:
https://www.bestbuy.com/site/jbl-gx-series-12-single-voice-coil-4-ohm-subwoofer-black/6283643.p?skuId=6283643
Will pick up two later today from my local store. Walmart can keep there f*ing label (no, still not shipped).

Michael
Thank you Michael! I was waiting for these to go on sale again. You saved me from paying $42ea or trying the DWS's. (I probably would've just paid the $42).

Anyway, I just ordered 4 more. As if I need more of these
jcmccorm is offline  
post #1849 of 2494 Old 03-30-2019, 07:51 AM
AVS Forum Special Member
 
OJ Bartley's Avatar
 
Join Date: Apr 2009
Location: Toronto, ON
Posts: 1,162
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 480 Post(s)
Liked: 573
So random! I didn't expect them to go on so soon again.

Unfortunately the Dayton amp I was looking at to power a pair of these (a page or so ago) is now discontinued in favour of an upgraded model with Bluetooth. Not a feature I need or want, nor did I want to pay extra for. Any other decent cheap 50w x 2 recommendations?

Sent from my SM-A520W using Tapatalk
OJ Bartley is offline  
post #1850 of 2494 Old 03-30-2019, 12:47 PM
Senior Member
 
Chris Popovich's Avatar
 
Join Date: Dec 2005
Location: Phoenix AZ
Posts: 365
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 179 Post(s)
Liked: 158
Picked up 4 more.... lol

That gives me 22 unused, and 16 used in the house. muhahahahaha
OJ Bartley and EndersShadow like this.
Chris Popovich is offline  
post #1851 of 2494 Old 03-30-2019, 01:41 PM
Senior Member
 
dTorC4's Avatar
 
Join Date: Nov 2009
Posts: 206
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 86 Post(s)
Liked: 146
I picked up one more for a total of 9. This gives me flexibility to run them all on a single channel at 4 ohms.
dTorC4 is offline  
post #1852 of 2494 Old 03-30-2019, 02:06 PM
AVS Forum Special Member
 
EndersShadow's Avatar
 
Join Date: Apr 2009
Location: Indianapolis
Posts: 6,135
Mentioned: 71 Post(s)
Tagged: 0 Thread(s)
Quoted: 1233 Post(s)
Liked: 1513
12" JBL speaker $29 on black friday at Bestbuy

Quote:
Originally Posted by Chris Popovich View Post
Picked up 4 more.... lol



That gives me 22 unused, and 16 used in the house. muhahahahaha


I think your now the record holder for most subs lol....

Other than @Erich H who has a warehouse full


Sent from my iPhone using Tapatalk

My Setup | Custom MiniDSP Build | FS: If its For Sale, find it all (here)
Quote: There exists, for everyone, a sentence - a series of words - that has the power to destroy you. Another sentence exists, another series of words, that could heal you. If you're lucky you will get the 2nd, but you can be certain of getting the 1st. - Philip K. Dick
EndersShadow is offline  
post #1853 of 2494 Old 03-30-2019, 02:38 PM
Advanced Member
 
Join Date: May 2016
Location: Chicago, IL
Posts: 741
Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Quoted: 348 Post(s)
Liked: 488
I would like opinions about where exactly your nearfield sub should be pointing if you could position it however you want.

What part of the body is the ideal target?

I have seen the chart of what frequencies hit what part of the body but not much about exactly where the cone should be focused ideally.
RoboAVS is offline  
post #1854 of 2494 Old 03-30-2019, 04:15 PM
AVS Forum Special Member
 
SteveCallas's Avatar
 
Join Date: Jun 2004
Posts: 8,149
Mentioned: 38 Post(s)
Tagged: 0 Thread(s)
Quoted: 810 Post(s)
Liked: 735
Picked up 2, one needs to go right back, it makes a pretty loud scratching noise when i move the cone, like the coil is rubbing the leads.
SteveCallas is online now  
post #1855 of 2494 Old 03-30-2019, 08:49 PM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
That's why you need 16.

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786
LastButNotLeast is offline  
post #1856 of 2494 Old 03-31-2019, 09:29 AM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
Coming soon:




Michael
4fit?, OJ Bartley, Nalleh and 1 others like this.

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786
LastButNotLeast is offline  
post #1857 of 2494 Old 03-31-2019, 10:03 AM
AVS Forum Special Member
 
EndersShadow's Avatar
 
Join Date: Apr 2009
Location: Indianapolis
Posts: 6,135
Mentioned: 71 Post(s)
Tagged: 0 Thread(s)
Quoted: 1233 Post(s)
Liked: 1513
Quote:
Originally Posted by LastButNotLeast View Post
Coming soon:




Michael


Loooks good! Now one for all 4 walls hehe


Sent from my iPhone using Tapatalk

My Setup | Custom MiniDSP Build | FS: If its For Sale, find it all (here)
Quote: There exists, for everyone, a sentence - a series of words - that has the power to destroy you. Another sentence exists, another series of words, that could heal you. If you're lucky you will get the 2nd, but you can be certain of getting the 1st. - Philip K. Dick
EndersShadow is offline  
post #1858 of 2494 Old 03-31-2019, 10:13 AM
AVS Forum Special Member
 
jcmccorm's Avatar
 
Join Date: Mar 2001
Location: Madison, AL, USA
Posts: 4,519
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 607 Post(s)
Liked: 458
Awesome! Where will they go? Nearfield or far?
jcmccorm is offline  
post #1859 of 2494 Old 03-31-2019, 01:00 PM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
Very nearfield.
I was aiming for the corner, but m'lady didn't want the window (or fireplace ) covered.
Pretty inconspicuous, until it plays.
MLP is to the near/left side, with room behind the seat for the next project with the remaining driver.








REW measurements to follow.
Michael
Marc Alexander and OJ Bartley like this.

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786
LastButNotLeast is offline  
post #1860 of 2494 Old 03-31-2019, 01:02 PM
AVS Forum Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 9,921
Mentioned: 70 Post(s)
Tagged: 1 Thread(s)
Quoted: 2480 Post(s)
Liked: 2109
Quote:
Originally Posted by EndersShadow View Post
Looks good! Now one for all 4 walls hehe
For multiple subs, two 2x2 would work really well.
Michael

Did you really need to quote that entire post in your reply?
Welcome to AVS - Get out while you still can!
Don't guess, measure: https://www.avsforum.com/forum/91-au...l#post22789786
LastButNotLeast is offline  
Sponsored Links
Advertisement
 
Reply DIY Speakers and Subs

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