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Discussion Starter #41

Why 2 iNukes?

Should have been more clear. The iNuke 3000 is 50 dollars less than the iNuke 3000 DSP model. So the DSP in the amp adds 50 to the cost, whereas the miniDSP costs 125 not including the cost of the additional cables and plug in.

No to the adapter to split your single LFE output; it is not necessary. The single LFE output from the AVR is fed to a single miniDSP input. That single input is then duplicated internally using the miniDSP plug-in to two mono outputs. Those two mono outputs are then manipulated/EQ'd the using the plug-in. Those two miniDSP outputs then serve as the inputs for the amp's L & R channels to drive each sub individually.
True, but if I dont get the miniDSP then I need to double my LFE outputs since I would be going straight to the iNuke.

FYI: Most AVRs do not have two unique LFE (.2) outputs. Higher-end AVRs sometimes do, but they likely already have Audyssey SubEQ functionality (independent EQ of two subs), so there is less to be gained by using a miniDSP in the first place.
Depends on what manufacture you go with. There is YPAO (Yamaha), MCACC (Pioneer), Audyssey (Denon, Marantz, Onkyo, Integra), ARC (Anthem), Sherwood (Trinnov), and Harman Kardon has their own as well that I forget. Depending on the EQ you may or may not get individual or summed response.

Next year I have the go ahead to consolidating my AVR & Amps to a Pioneer SC model, and they use MCACC which doesnt EQ below 63 hz (as of now, rumor is this years model will). And MANY Audyssey XT models are still lacking SubEQ IIRC.
 

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Discussion Starter #43
That would be done with a RCA Y adapter.


I know. Ive got a couple of those already.

I am moving next year to a Pioneer Elite which will have 2 sub outputs.

But those models while they do have decent Auto Calibration, dont EQ the sub, hence my looking at trying to get that done now. Plus my existing EQ (2EQ) doesnt do ANYTHING with the sub besides set level and distance.
 

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Discussion Starter #44
Can someone model the D4 in the Martycube and show excursion? I want to make sure I am not going over XMas.

I dont think I am but want someone with more skill than I do to verify.
 

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Discussion Starter #46
It can handle 1000 watts with a HPF at 18 hz, the estimated SPL is in post #10.
So you mean the drivers wont exceed xmas until above 1000 watts correct? Also the graph in post 10 was for duals correct?
 

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So you mean the drivers wont exceed xmas until above 1000 watts correct?


As long as you have a HPF at 18 hz or higher.

Also the graph in post 10 was for duals correct?
No, it a single 15" in 5 cu.ft. tuned to 20 hz which is the net volume and tuning frequency of the Marty sub.

 

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Discussion Starter #48

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Discussion Starter #50 (Edited)
And since they are D4's they need to be wired together for a 4 ohm load which is easier on the amp.
Are you saying I need to daisy chain these together like this amp --> sub 1 --> sub 2?

I thought they were a 4 ohm load by default?

**nm** see they are dual 4 ohm DOH....

Can't I just run them a 2 ohm and then limit the iNuke to only give em 990 watts or would that NOT be suggested?

If I run them both off the same channel then I have to EQ them summed rather than independent... or am I missing something?
 

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Have you considered going sealed? The dsp on the inuke3000dsp has a great ls12 filter that can lift the bottom end and when bridged can output 2075w ish at 4ohm's. I have it set to 25hz at +3db and along with my house curve is impressive. Im new to all this and just finished doing dual 15's sealed with the 3000dsp and am shocked at the output. I think if you want to go really low sealed is the way since a box tuned to 18hz would sharply drop below 18hz right? My 2 newb cents.

Pete
 

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Discussion Starter #53
You can try them at 2 ohms per channel. Hopefully the amp won't kick out on thermal overload. It will depend how hard you drive the subs.
Yeah, I dont want to mess with that probability.

My main issue is that I need to be able to EQ them independently which I cant when they are daisy chained.

So I either need a amp with a LOT of 8 ohm power (expensive) or 4 ohm subs.

Wondering how the Dayton UM12's or UM15's would do instead.
 

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That closet under the stairs there Ender would make an excellent built in AV rack and IB subwoofer enclosure... Just brace it up a little, add some acoustic damping and viola.
 

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Discussion Starter #56
That closet under the stairs there Ender would make an excellent built in AV rack and IB subwoofer enclosure... Just brace it up a little, add some acoustic damping and viola.
Thats where we hide all the kido's stuff..... and trust me there is no room as it is lol..

Plus the entertainment center we just got in (not in the pics) is VERY VERY nice.

I will try to take some pics later tonight....
 

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Discussion Starter #57
Got some better pics of my setup just so you get an idea of what it actually looks like setup (phone pics cause I didnt have time for the "good" camera.)

This is from the actual main listening position


These are just some other general pictures of the room.



 

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Discussion Starter #58
Just got some good news (I think).

A buddy of mine just told me he is running the 18" D4's wired @ 2 ohms off a iNuke 3000 DSP model. He's modded the fan and has no issues with thermal shutdown on the amp.

Which makes me think I can probably get by with the 15" D4's wired to 2 ohms on the iNuke. Which makes me happy as its the cheaper option :T

He's bought his setup off a guy that custom made them in a sealed Sonotube (pics/thread here) and drives em hard with no issues.
 

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Discussion Starter #60
Ok. So I have found a couple SI D2 drivers. They are priced very decently. I am not wondering if I should go for 2 ported subs (each with a single driver) or if I should go with 4 sealed subs, one in each corner. I could also go with 2 dual opposed sealed subs.

I was hoping someone here might be able to graph out how a sealed 15" D2 v Ported v. Sealed dual opposed would look on paper.
 
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