Author Topic: Anyone using the new NAD AVRs? It has Dirac live!  (Read 3289 times)

Offline ronildoq

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Re: Anyone using the new NAD AVRs? It has Dirac live!
« Reply #45 on: April 16, 2019, 08:15 »
For the benefit of the NAD Dirac capable equipment Users , some queries I had on target curve, so sharing so everyone will benefit

When you get the room feel target curve, you could actually use the target curve to do many things

1. Altar the target curve to your preference . You can input these numbers onto the txt files and play around, here is one example of -8db target from 20-20khz. Do BECAREFUL when applying boost according to your sub capabilities






There is also something I wanted to highlight that there is actually a built in Digital High Pass / Low pass filter. See this



From the above , HPSLOPEON set to 1 will turn on the high pass filter. Next you can set at what frequency to high pass, example shows 40hz

You can then further set the slope, how steep the roll off, 2 means 6db octave, 4 = 12db octave, 8 = 18db octave and so on

For KK subs, you can go with a 12db octave slope, type 4 on HP order, you can also experiment with 24db octave slope

The same works for Low pass filter, set LPSLOPEON to 1 and it will turn on the Low pass digital filter. Set to 0 and no Low pass filter engaged

So here is what happens when HPSLOPEON set to 1, see how it cuts out the bass <40hz



See the green line, being cut off due to this simple tweak.

Enjoy !! Hope that helps all NAD users



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Offline ronildoq

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Re: Anyone using the new NAD AVRs? It has Dirac live!
« Reply #46 on: April 16, 2019, 08:32 »
Here is the link to download a sample of the target curve file for use with Dirac

The below target is a customise target , .txt file.

It’s a hard knee straight line curve, generally good if you are using it with 15” , 18” subs that has good extension down Low.

Ideally the smaller the room, the steeper the curve, this curve works well in my hall, 6m x 8m x 2.4m, you might wanna try a slightly steeper or less steep curve, down to preference


Target for mains

https://drive.google.com/file/d/1KNHE_woZRbk9a2l2QagQ8lqeAZGqdukm/view?usp=drivesdk

Target for subwoofer

https://drive.google.com/file/d/1X7vtka-3Z5XNVwsAPBIrfK6Hd5SCAL7d/view?usp=drivesdk



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Offline ralfale

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Re: Anyone using the new NAD AVRs? It has Dirac live!
« Reply #47 on: April 16, 2019, 10:50 »
Nice share again ! Especially on the digital filter which is not available from on screen menu.

NAD presents very good value for being the cheapest dirac avr on the market. Good for those wanting to try dirac without the hassle of 11 or 13 interconnects for linking up ddrc-88 (which can be quite costly on it's own).