HT Subwoofer project - Page 3 - AVS Forum
Forum Jump: 
Reply
 
Thread Tools
post #61 of 78 Old 11-15-2013, 12:34 PM
AVS Special Member
 
chalugadp's Avatar
 
Join Date: Jan 2013
Location: Vancouver, BC, Canada
Posts: 3,578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 258 Post(s)
Liked: 691
Mine took a few hours and some minor placement moves to shine.
chalugadp is online now  
Sponsored Links
Advertisement
 
post #62 of 78 Old 11-15-2013, 01:01 PM
AVS Addicted Member
 
LTD02's Avatar
 
Join Date: Oct 2003
Posts: 15,840
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 809
Quote:
Originally Posted by Atredeis View Post

MartySubs are done and online.

:-)

...

"First listening impression... be careful with the gain knob. Made my eyes cross with some EDM....."

:-)

...

bpm

:-)

Listen. It's All Good.
LTD02 is offline  
post #63 of 78 Old 11-15-2013, 01:28 PM
AVS Addicted Member
 
LTD02's Avatar
 
Join Date: Oct 2003
Posts: 15,840
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 809
and...in the 'one cut' version the port is slightly shorter, so it doesn't need to be quite as long. 32" should bring it in right around 17hz.

Listen. It's All Good.
LTD02 is offline  
post #64 of 78 Old 11-15-2013, 02:25 PM - Thread Starter
Member
 
Atredeis's Avatar
 
Join Date: Sep 2012
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 19
Oh and that's a 55lb aussie/collie mix standing next to the MartySub. These things are big. Ridiculous as my friend likes to put it.

Denon 1713 AVR
HTD Level 2 Bookshelf Surrounds and L/R
HTD Level 2 Center
Two MartySubs powered by iNuke3000DSP

Sharp Aquos LC-70LE632U

HTD Level 3 Subwoofer (for sale, currently unused)
Atredeis is offline  
post #65 of 78 Old 11-15-2013, 11:01 PM
AVS Addicted Member
 
LTD02's Avatar
 
Join Date: Oct 2003
Posts: 15,840
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 809
anything that you would do different next time? or tips for the martysub! build post?

Listen. It's All Good.
LTD02 is offline  
post #66 of 78 Old 11-16-2013, 02:32 AM - Thread Starter
Member
 
Atredeis's Avatar
 
Join Date: Sep 2012
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 19
A couple things which helped alot were:

The various 20Hz HPF Workaround suggestions:
I used a 20Hz HPF and a +2dB PEQ at 20Hz

I used titebond everywhere I could see the joint (for easy cleanup) and PL for closing the box (because it expands)

Duratex is amazing stuff. It nicely hid ALOT of blemishes. I prbably didn't need to play with the second round of Bondo.

The Tie-Wrap trick to manhandle the 40lb woofers.

Do the final assembly in place (or as close to). Putting a 40lb woofer in and not having to move it helps. I'd hate to wrestle one of these up a flight of stairs alone.

All of those threads about fan mods on the inuke? They're not kidding, while not deafening, it is distracting. Will be swapping it out shortly.

Be sure you speak to the person who will be cutting your lumber, not just the office manager. The shop guy didn't read the BOM on the cutlist (in a hurry or whatever), so instead of making 4 2' x 4' panels, he doubled everything else! Thankfully they were a good shop and made everything right without asking for more $$. (On another note, I got the wood from them as well as paying what they asked without negotiating in case something like this happened)

Grill covers add a nice, finished appearance. They increased the WAF dramatically.

I should' have Duratexed the slots during assembly. Spray paint was used for convenience, but it shows and needs retouching. This will be difficult now that its assembled and in place.

Routers are fun. At one point, I could have passed for Sawdust Man.... (sorry, no pictures but I was covered and had to vacuum myself)

That's what I can think of now. Here's another picture...

blah450 likes this.

Denon 1713 AVR
HTD Level 2 Bookshelf Surrounds and L/R
HTD Level 2 Center
Two MartySubs powered by iNuke3000DSP

Sharp Aquos LC-70LE632U

HTD Level 3 Subwoofer (for sale, currently unused)
Atredeis is offline  
post #67 of 78 Old 11-16-2013, 03:06 AM
Advanced Member
 
blah450's Avatar
 
Join Date: Jan 2010
Posts: 887
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
Liked: 119
blah450 is offline  
post #68 of 78 Old 11-16-2013, 01:01 PM
FOH
AVS Special Member
 
FOH's Avatar
 
Join Date: Apr 2010
Location: Midwest
Posts: 4,737
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 206
Great outcome! Thanks for sharing the details and the images. You should be proud cool.gif

------------------------------------
Flat, Deep, Clean, Linear, and Loud
------------------------------------
Active 16.8kw, 7.3 system
(3)Seaton Cat12C up front, (4)QSC K8 sides/rears
(2)Seaton SubM-HP, (4)18" IB
FOH is offline  
post #69 of 78 Old 11-16-2013, 04:54 PM
AVS Special Member
 
steve nn's Avatar
 
Join Date: Aug 2003
Posts: 6,207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 425
VERY NICE INDEED!

Klipsch RB-75
Klipsch C-7
Klipsch RB-35
On-going SW management class
Denon
PS3
steve nn is offline  
post #70 of 78 Old 11-19-2013, 07:19 AM - Thread Starter
Member
 
Atredeis's Avatar
 
Join Date: Sep 2012
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 19
I have a question about turning the inuke on and off. Currently, I push the button to turn it on then again to turn it off when done. This should be easy to automate using a PowerSwitch Tail. (http://www.powerswitchtail.com/Pages/default.aspx) However, my Denon AVR-1713 does not have a +12v trigger output like the higher end models.

I'd like it to power on and off with the AVR, but am unsure where to get a signal from. Attached is a pic of the back of the AVR, but I don't think that will help. Any ideas on what to do would be greatly appreciated.

Thanks!
-Paul


Denon 1713 AVR
HTD Level 2 Bookshelf Surrounds and L/R
HTD Level 2 Center
Two MartySubs powered by iNuke3000DSP

Sharp Aquos LC-70LE632U

HTD Level 3 Subwoofer (for sale, currently unused)
Atredeis is offline  
post #71 of 78 Old 11-19-2013, 08:54 AM
AVS Addicted Member
 
LTD02's Avatar
 
Join Date: Oct 2003
Posts: 15,840
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 809
you might be better off with something like this:

http://www.apc.com/resource/include/techspec_index.cfm?base_sku=P7GT-CN

plug your receiver into the "master" receptacle.

when you turn on the device that is plugged into the "master" receptacle, it switches on power to the devices that are plugged into the "slave" or "controlled by master" receptacles (e.g., your power amp).

there are several of them around these days. search on switched outlet or power saving outlet.

Listen. It's All Good.
LTD02 is offline  
post #72 of 78 Old 11-19-2013, 08:56 AM
AVS Addicted Member
 
LTD02's Avatar
 
Join Date: Oct 2003
Posts: 15,840
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 809
i'm actually curious if such devices preserve "soft start" or if they cause "popping". anybody?

Listen. It's All Good.
LTD02 is offline  
post #73 of 78 Old 11-19-2013, 10:48 AM - Thread Starter
Member
 
Atredeis's Avatar
 
Join Date: Sep 2012
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 19
I'll give the US version a try. It's cheaper than the PowerSwitch Tail and hopefully simpler.

I don't get any noise or pops when powering up the amp normally, so hopefully this won't induce any.

Denon 1713 AVR
HTD Level 2 Bookshelf Surrounds and L/R
HTD Level 2 Center
Two MartySubs powered by iNuke3000DSP

Sharp Aquos LC-70LE632U

HTD Level 3 Subwoofer (for sale, currently unused)
Atredeis is offline  
post #74 of 78 Old 11-26-2013, 03:08 AM - Thread Starter
Member
 
Atredeis's Avatar
 
Join Date: Sep 2012
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 19
A couple of minor updates, basically everything working as expected.... Note that I found these things by asking here and combing other threads for this useful information.

The switched surge protector has no problems turning the inuke 3000dsp on and off.

http://www.amazon.com/gp/product/B002K8VUCC/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1&tag=s601000020-20

As reported elsewhere, the following fan swap on the inuke quieted it down. If I were to do again, I might go for more CFM as my room doesn't require it to be this quiet and I personally prefer more thermal protection. However, this is a major improvement over the stock fan/noise.

http://www.amazon.com/gp/product/B000S95RWE/ref=oh_details_o04_s01_i01?ie=UTF8&psc=1&tag=s601000020-20

As reported here an on the monoprice reviews,the monoprice RCA to XLR cable eliminated the hum caused by the amazon RCA to TRS cable.
http://www.monoprice.com/Product?c_id=115&cp_id=11509&cs_id=1150902&p_id=4777&seq=1&format=2

In the next day or so, I hope to measure the in room response as well as estimating the tuning frequency and fine tuning the HPF. I already have the UMIK and REW. Just need to get some earplugs... smile.gif

-Paul

Denon 1713 AVR
HTD Level 2 Bookshelf Surrounds and L/R
HTD Level 2 Center
Two MartySubs powered by iNuke3000DSP

Sharp Aquos LC-70LE632U

HTD Level 3 Subwoofer (for sale, currently unused)
Atredeis is offline  
post #75 of 78 Old 11-26-2013, 06:37 AM - Thread Starter
Member
 
Atredeis's Avatar
 
Join Date: Sep 2012
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 19
Just getting started with REW, but these look promising...



Brown is with the Denon in Direct mode (Without Audyssey?) and the green is Movie mode. The LFE crossover is set at 120Hz.

I'll do more measuring tomorrow and see what can be learned.

Denon 1713 AVR
HTD Level 2 Bookshelf Surrounds and L/R
HTD Level 2 Center
Two MartySubs powered by iNuke3000DSP

Sharp Aquos LC-70LE632U

HTD Level 3 Subwoofer (for sale, currently unused)
Atredeis is offline  
post #76 of 78 Old 11-26-2013, 11:37 AM
AVS Special Member
 
jpmst3's Avatar
 
Join Date: Dec 2005
Location: Davidsville, PA
Posts: 8,115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 186
Cool! Congrats on a great build! Enjoy!

jpmst3 is offline  
post #77 of 78 Old 12-04-2013, 05:41 PM - Thread Starter
Member
 
Atredeis's Avatar
 
Join Date: Sep 2012
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 19
I had a colleague visit for a subwoofer demo tonight. We watched the light cycle scene from Tron Legacy. My wife, who was outside playing with the dogs, saw the hardward on the outside of the windows shaking and rattling. biggrin.gif

Here's another pic. I don't think doggie knows what's coming....



Still learning REW and will post some more graphs once I can get repeatable measurements....

Denon 1713 AVR
HTD Level 2 Bookshelf Surrounds and L/R
HTD Level 2 Center
Two MartySubs powered by iNuke3000DSP

Sharp Aquos LC-70LE632U

HTD Level 3 Subwoofer (for sale, currently unused)
Atredeis is offline  
post #78 of 78 Old 12-04-2013, 08:14 PM
AVS Special Member
 
chalugadp's Avatar
 
Join Date: Jan 2013
Location: Vancouver, BC, Canada
Posts: 3,578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 258 Post(s)
Liked: 691
It sure is fun biggrin.gif
chalugadp is online now  
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