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What box for my application?Housewrecker/Death box (Read 18323 times)
HT-EXT
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Re: What box for my application?Housewrecker/Death box
Reply #30 - 12/30/09 at 11:46:37
 
All you need to do is use the LFE or sub out on the Denon. Run a single cable into the Y-splitter and then a cable into each amp. If you notice that amp has a high level in(Pro Audio) and a low level in(home audio). You will be using the low level input. Just pay attention to were you put the amps, I have heard they can interference with other audio equipment. Good Luck !!!


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Basshead
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Re: What box for my application?Housewrecker/Death box
Reply #31 - 12/30/09 at 12:20:48
 
Thanks again, now I have a question about cable length. I know the farther you need to go the smaller gage you use ok, I have like 150 feet -two rolls of 12 gages. What would be my better bet to use the long length of 12 gage wires or use a good RCA cable?

I was thinking since I have so much 12 gage that it would be better to us e longer lengths of 12 g to the sub and to use shorter RCA cable. I don’t want to lose any single.
Thank again  HT-EXT

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« Last Edit: 12/30/09 at 12:25:04 by Basshead »  
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HT-EXT
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Re: What box for my application?Housewrecker/Death box
Reply #32 - 12/30/09 at 14:09:42
 
A long RCA cable can often pick interference or even worse 60Hz hum. Only the higher grade RCA cables that are heavily shielded will prevent these problems. If you already have the speaker wire I would go head and use it for the long runs. You will not have the problems with the speaker wire that you will with RCA but some power loss is possible with low grade speaker wire. The power loss will be marginal at best so you should not worry, especially with the kind of power you are talking about running. Keep the question coming, I will do my best to answer them.



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« Last Edit: 12/30/09 at 14:10:20 by HT-EXT »  

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Re: What box for my application?Housewrecker/Death box
Reply #33 - 12/30/09 at 16:42:55
 
I found a cheaper deal online at audio-discounters.com so I called up musiciansfriend.com and they beat their deal by far so I ordered two Buttkickers. I only paid $245.00 each I saved a lot. But I didn’t get the 2 year coverage for $45.00. Should I? I could always call back today.

I read that some people leave it on 24/7 between 2 to 5 years and never have any problems.

But I plain on turning it off when I don’t use it unless I should leave it on? From what I understand if you turn equipment off/on it can make the equipment get hot/cold therefore the solder joints can crack. But that’s just my thought being the electronics business.

Well I hope I don’t have any problems but will see when I get them.

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« Last Edit: 12/30/09 at 16:50:03 by Basshead »  
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HT-EXT
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Re: What box for my application?Housewrecker/Death box
Reply #34 - 12/30/09 at 17:51:09
 
I have not heard of too many failures with the Buttkicker amp. Besides if one amp can run two Buttkickers it is gotta be tough amp. Buttkicker LFE pulls juice like nobody's business so I would think your OK without the warranty.

I always shut down my system when I leave home. To me, leaving them on all the time would prolly shorten the life span of the amp, but that is just my opinion.

Glad to hear you got the amps and that was a killer deal.



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Re: What box for my application?Housewrecker/Death box
Reply #35 - 01/07/10 at 04:41:04
 
I received the BK amps today and tried them out but, I could not get it to work when connected to the SW output. I don’t know why it’s not working? I even tried adjusting the settings +/- the gain. Any Ideas if I have any setting wrong?

I was able to get it to work using the Pre out Zone 2/3. However when you use those outputs you have no control (the sub) with the master volume combined. As you adjust the master volume up and down, the sub gain stays at the volume its set to, when the mater volume is completely down. I also have a Sony receiver that I tried and I was able to use the SW out put it worked.

I didn’t screw the side of the box or have the top of the lid that makes the wedge; all I can say is that amp has some BALLS! I didn’t even have the amp half way up and I was trying to hold the side of the box together but it just kept rattling. I just wanted to make sure I liked the way it sounded before I complete the box.  The sub was barley moving is sounded amazing I can’t imagine how 2 subs will sound. WOW!

I have come to a conclusion from when I had the crown amp since I have multiple subs that I was playing with, I may have had the sub wired wrong and that’s why the amp was not working correctly.

Comparing the BK verses the Crown I would say I lost 200 watts per sub with the BK, but you will not be able to even tell. It looks more impressive using the 2 amps and it’s probably less work on the amps compared to using the Crown. The only bad thing I could say about the BK amp is the warranty is not as good as the Crown. Another positive is I saved $95. But that’s just my thought.

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« Last Edit: 01/07/10 at 04:48:24 by Basshead »  
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HT-EXT
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Re: What box for my application?Housewrecker/Death box
Reply #36 - 01/07/10 at 11:25:48
 
Great to hear of your success. I have been battling port-fart with mine. The ports were too long to begin with so I shorten them. Better output and performance but high volumes still have some port noise. I am going to keep trying different set ups till I find one I like, besides thats half the fun, testing and tuning.

You should have an advantage using two amps over just one, even if the power is not the same. You should be able to tune each enclosure to work with whatever room placement is needed. Room placement will be key to good tuning (with two subs) and being able to adjust each one will be important. I think you are the right path and should have a devastating combination. Be sure to post some results, I have always wanted to try a high excursion sub like that with bunch of power to push it.



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« Last Edit: 01/07/10 at 11:27:25 by HT-EXT »  

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Re: What box for my application?Housewrecker/Death box
Reply #37 - 01/07/10 at 16:39:05
 
Have you looked into the12volt.com? There is a calculator with round/slot port lengths. It is very helpful; I used it multiple times with my enclosures. Did you flare out the ports or try different port sizes 2” to 6”? That can change the length of the ports and maybe get rid of your port noise.  

I have used ported boxes with almost all my enclosures for the past 13 years. I have always had good success.
Oh, did you use the same enclosure or built a new one? Just wondering a slot mite work better.

Good luck and if I can help you out in any way just let me know.

http://www.the12volt.com/caraudio/boxcalcs.asp#por

My question is why can’t I get the amp to work using the SW output on the receiver? But I was able to get it to work using the Pre out Zone 2/3.

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« Last Edit: 01/07/10 at 16:44:21 by Basshead »  
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HT-EXT
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Re: What box for my application?Housewrecker/Death box
Reply #38 - 01/07/10 at 17:52:28
 
I have used 12volt a couple of times and it is very helpful. Here are a couple more links.


http://www.reaudio.com/speaker_box/LPort_Box_Calc.html
http://www.mobileinformationlabs.com/HowTo-1Woofer-Box-CAL%20Port%20lenth%201.ht...
http://mobile.jlaudio.com/support_pages.php?page_id=165
http://www.lenardaudio.com/education/05_speakers.html
http://www.bcae1.com


I have built some slotted port enclosure and had great results. I was trying to use up some pvc (3" ID) I had laying around but pvc has often caused me trouble mostly in the port-fart area. I did flare the outside of the port but not the inside. I am sure that is the problem because the port tunig is almost ideal. If I stay with the port idea I will prolly go slotted port way.

As for the SW output not work I would check your settings. My receiver has different adjustments for the sub-out (NO, YES, PLUS). I'm not totally sure what could be the problem. If you can give me some more info on the receiver, I will try to find some info for you that might help.


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« Last Edit: 01/07/10 at 17:56:44 by HT-EXT »  

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Re: What box for my application?Housewrecker/Death box
Reply #39 - 01/07/10 at 18:18:12
 
Ok thank you, Those are some good sites. I have a Denon AVR 3808CI receiver. I have adjusted the +/- 12 DB up and down, also it shows the SW display is on when when using the  7.1 surround sound.

I do have a Mic that came with the receiver I was thinking that maybe I need to run the test with the amp connected to get the signal to the amp. So it can go through its cycle to each speaker that is connected.

Let me know if you need to know any other info thanks.
I have never used 3” ports maybe that could be the reason of the port noise. I always used 4” and flare both ends or slotted ports. Put that’s just my advice and experience.

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« Last Edit: 01/07/10 at 19:48:43 by Basshead »  
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HT-EXT
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Re: What box for my application?Housewrecker/Death box
Reply #40 - 01/07/10 at 19:54:52
 
I just want to clear up some things first so we are talking about the same hook-ups. You are using the SW (pre-out). There is also a SW (EXT-in) connection that will not work as an output. Here is some info from the manual.

                   
                     Subwoofer Mode

Select low range signal to be reproduced by subwoofer.
[Selectable items] LFE  /  LFE+Main

• This can be set when GUI menu “Speaker Configuration” –
“Subwoofer” is set to “Yes”.

• Play music or a movie source and select the mode offering the
strongest bass.

• Select “LFE+Main” if you want the bass signals to always be
produced from the subwoofer.



Hope this helps.



HT-EXT


Here is the stuff from the trouble shooting guide.

No sound is produced from subwoofer.


• Subwoofer’s power not turned
on.        • Turn on the subwoofer’s power.

• The “Subwoofer” setting at
“Speaker configuration” is set to
“No”.      • Set to “Yes”.       page 28


• The subwoofer is not properly
connected.       • Check the connections.     page 9


• The subwoofer’s volume is
turned off.       • Adjust the subwoofer’s volume
to an appropriate level      page 58





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« Last Edit: 01/07/10 at 20:14:59 by HT-EXT »  

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Re: What box for my application?Housewrecker/Death box
Reply #41 - 01/08/10 at 04:58:27
 
Yes, I am using the SW pre-out. When I was in the GUI menu I was not able to find the Subwoofer & set it to “YES”.  

So I set up the mic again I was thinking that when I set it the last time since I was not using a SW or amp that there was no signal that could be found . In the process of the test it did detect the subwoofer so least that told me it was working properly.  

Setting the SW to “yes”. It didn’t work but I did what you said I play strong bass and turned it up. Luckily the signal was detected.

Sometimes trying to understand the manuals is a pain especially with this receiver there are so many setting on there.  

Thank you for the help again I appreciate it.

I will keep you updated with my status on the build. I have added the other side of the box but I have not screwed in the piece that houses the sub yet since I was waiting for the amps, I wanted to see how it sounded.

I could only turn up the amp ¼ of the way due to it rattling like crazy. I plan on picking up some 3/4“birch to wrap and stain the box this Saturday and other supplies to go forward.  

Have you ever used Poly fill? I have been thinking about using it if needed.  I know if I use it that I would need to put a screen on the inside of the port so it doesn’t come out. But is there ever a chance the fill can get inside the back of the magnet into the voice coil?

Or the Acoustic foam? I have used it once before.

Basshead


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« Last Edit: 01/08/10 at 05:37:18 by Basshead »  
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Re: What box for my application?Housewrecker/Death box
Reply #42 - 01/08/10 at 11:17:11
 
Just trying to help. Your owner's manual is 106 pages and I could easily get lost. That is a very nice receiver you have and with all the hook-ups and settings it would hard not to get confused.

I use polyfill on about every build especially subwoofer builds. You can buy some of the flat batten(polyfill) to cover the inside of the port. My method is to pack the corners of the enclosure with poly, leaving a open space behind the subwoofer. Let me know if you would like more info.



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« Last Edit: 01/08/10 at 11:50:34 by HT-EXT »  

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Re: What box for my application?Housewrecker/Death box
Reply #43 - 01/14/10 at 05:37:44
 
I have added some more Pics.

It’s coming along. I have been going a lot of sanding and pre drilling for the screws, which is what, is taking most of my time. Plain is to:

1.      Sand the front of the box with the port it’s somewhat not flush.
2.      Paint the inside of the wedge using a glossy black finish or use textured paint. ( try a different look)
3.      Cut the ¾” Oak down to size, wrap the box, screw and stain.
4.      Complete the same steps with the second box.

http://s765.photobucket.com/albums/xx294/bass-head/?action=view&current=P1110204...

HT-EXT, How is porting that box going? Hope it’s turning out for you!

Basshead
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Re: What box for my application?Housewrecker/Death box
Reply #44 - 01/14/10 at 11:38:14
 
Again, excellent build. I have since went back to the original design and removed the pvc. I have never been able to run anything bigger than a 10" sub with pvc and not have port issues. That is just my luck but I am going to test the original and record the numbers. Next is to fill in the 3" holes and cut out an opening for a 4" flared port that I have just laying around. I would try slotted but I am running out of wood and don't have enough scrap wood to try it. I am sure when yours is up and running you will be most pleased.



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