Dual Ultimax 12" - First time builder - AVS Forum
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Old 06-10-2014, 08:58 PM - Thread Starter
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I'm going to build my first set of speakers, a pair of Dayton Ultimax 12" with Parts Express knockdown cabinets for my living room. I'm going to power the pair with a inuke 3000 dsp amp. I'm building my shopping list right now and have a few questions.

 

 

1) I have a Denon AVR that will feed the amp via RCA. How do I hook up the amp? (RCA ---> XLR) or (RCA ----> Y-splitter ----> two XLR's)

 

2) When connecting the amp to the subs, do I just connect them with a speakon cable? Do I need the 2 pole or 4 pole connectors?

 

 

Thanks, I'm sure I'll have more questions as the project progresses.


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Old 06-10-2014, 09:24 PM
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I'm not real familiar with the inuke but I think it has a biamp mode where you can input with one signal and output two so you wouldn't need a splitter. If you're doing stereo subs then 2 pole is fine. 4 pole is needed when you bridge the amp.

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Old 06-12-2014, 09:49 AM - Thread Starter
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Thanks, searching for inuke biamp connections turned up a picture that was much more helpful than reading the manual.

http://www.hometheatershack.com/foru...nnections.html

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Old 06-20-2014, 05:25 PM - Thread Starter
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Most of my stuff has came in. I started gluing the flatpacks together with Titebond 2 and clamps. Do I need to seal the cabinets? If so, with what?


Thanks

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Old 06-20-2014, 06:15 PM
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If you properly glued the cabinet, there won't be any leaks.
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Old 06-21-2014, 03:02 AM
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missed your post the first time through.


the inuke needs a splitter before the amp.


in other words, you must have a separate input for each channel going into the amp if running one sub off of each channel.
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Old 06-21-2014, 08:28 AM - Thread Starter
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Thanks LTD. Any benefit form spitting the RCA or the XLR? Or just get what's cheapest?


Code:
RCA ---> RCA ---> XLR ---> AMP
     \--> RCA ---> XLR ---> AMP


      OR

RCA ---> XLR ---> XLR ---> AMP
             \--- XLR ----> AMP



This represents a splitter:
--->
\-->

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Last edited by bombertodd; 06-21-2014 at 08:32 AM.
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Old 06-21-2014, 10:33 AM
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Can you use the inuke itself as a splitter, taking channel A input and run it mono to both A/B outputs?
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Old 06-21-2014, 10:58 AM - Thread Starter
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Anthony, I've been trying to figure this out. I've read yes and no on the forums and the instruction manual is not clear (to me).


I'm still a little green when it comes to terminology. I've been reading until my eyes bleed but somethings are still muddy in my head.


EDIT:

Here's the manual if anyone wants to take a peek:
http://www.behringer.com/assets/NU60...00DSP_M_EN.pdf

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Last edited by bombertodd; 06-21-2014 at 11:08 AM.
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Old 06-22-2014, 10:30 AM - Thread Starter
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Here are some pictures so far. The cabinets are very easy to build. I have very little wood work experience and these were fun to build. I still have to install the front piece and attach the baffle. I also decided on the green faux leather for the cabinet with a black painted from.

EDIT:


I need to get the real camera out, these cell phone pics kinda stink.... sorry!
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Old 06-22-2014, 10:59 AM
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"Can you use the inuke itself as a splitter, taking channel A input and run it mono to both A/B outputs?"


not in the way that most folks want to use it.


a splitter is required to send an input into each channel.

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Old 06-22-2014, 02:37 PM - Thread Starter
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I stuffed both boxes with a pound of Polyfill each. I'm going to add a screen to keep it out of the driver. Probably the only thing I'll get done this weekend... Stupid homework... Hopefully tomorrow I can cut and router the countersink holes for the speakon connectors.
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Old 06-22-2014, 02:46 PM
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I would line the walls with thick insulation or polyfill if you can. The driver has a high qtc in that size enclosure according to winisd so a heavy fill can bring that down a bit.
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Old 06-22-2014, 10:56 PM - Thread Starter
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I added another half pound to each box, so total of 1.5 pounds per box.




I'm going to make a RCA to XLR splitter cable. I heard I should use microphone cable (whatever that is). Can I use 12 gauge speaker wire instead? Also how should I wire it up? I'm new to XLR plugs but I can solder like a champ.

Is diagram 1 possible without the shield? If not I think I'll try to make them like diagram 3 if possible. I was going to order these:
http://www.monoprice.com/Product?c_i...seq=1&format=2
http://www.monoprice.com/Product?c_i...seq=1&format=2


EDIT:

I got this RCA to XLR madness straighten out!
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Last edited by bombertodd; 06-26-2014 at 05:00 PM.
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Old 06-26-2014, 05:03 PM - Thread Starter
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I got the faux gator leather on one box. Used Loctite 200 spray adhesive and staple gunned the bottom. I also installed some little black plastic feet I picked up at Home Depot for $2.50. I bought some rustoleum bed liner for the front baffle (that's primer on there now).


I purchased the gator material at Big Z fabric for those that are interested.
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Old 06-26-2014, 05:10 PM
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Can you take a pic at a lower angle and a bit closer ? It looks good and want to see better. My wife might like this.
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Old 06-26-2014, 05:39 PM - Thread Starter
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Quote:
Originally Posted by chalugadp View Post
Can you take a pic at a lower angle and a bit closer ? It looks good and want to see better. My wife might like this.
OK, I went and stole my wife's Cannon. No laughing at my messy garage either please....
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Old 06-26-2014, 05:50 PM
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Thanks , maybe I will do a leather finish too
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Old 06-26-2014, 07:17 PM
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that's some nice work there. uncommon and creative and a little...eerie.

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Old 06-27-2014, 02:24 PM - Thread Starter
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Baffles are almost done being painted.


I have a question about installing the driver. How or what is the best way to drop in the driver into the cabinet without scratching the baffle?

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Old 06-27-2014, 04:55 PM
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Loop a few zip ties in the driver mounting holes for some handles. Kite string would probably work too.
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Old 06-27-2014, 06:07 PM - Thread Starter
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Good idea. I didn't even think about looping something through, dropping the driver in and cutting the loop so it can be removed. The joys of doing something for the first time and all the strange questions that arise.

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