I need an advice for the my stereo setup.
I am using a 7.2.4 system that is used for HC and music in a dedicated room. Rough dimensions : 540 cm x 330 cm. Ceiling 260 cm.
The stereo path of my system :
DAC: Denafrips ARES 12TH
Pre/Pro: Emotiva XMC-2
Power: Emotiva XPA-2
Speakers : KEF R3
Subwoofers : 2 x SVS SB-2000 Pro combined with MiniDSP 2x4HD
HTPC with local lossless collection streamed to the DAC exclusively through JRiver with USB connection.
PC with Jriver -> usb to DAC -> balanced to XMC-2 as a pre Amp with bass management -> bass goes to miniDSP with mono single unbalanced connection (both subwoofers connected to miniDSP) - stereo balanced to XPA-2 amp with R3 connected.
Since XMC-2 has several slots for speakers setup, this way I manage the easiest transition between music and HC when needed with a push of a button. Considering every setup is configured properly.
In the past I was using the automatic room correction for both the music and the HC with some tweaks here and there. Audyssey (Denon), ARC (Anthem) and Dirac since Emotiva XMC-1.
I have some knowledge and experience with REW over the years and the calibrated Umik-1 mic I have purchased in the past from the Cross Spectrum. So now I would like to try the manual path for the stereo path.
The MLP for the music is a static single position ( focused ).
The subs are located in opposite side of the room. One is in front of the MLP on the plane of the mains - front short wall - about 1/4 room width, and the second is about middle back wall. Considering the room response this gives the best result on the MLP area.
The subs are aligned between each other in order to maximize the MLP frequency response with 16ms delay for the back wall sub in the miniDSP as simulated inside the REW with the alignment tool.
For a couple of days now I am, trying to align the combined subwoofers response with the mains - but can't figure out what is it exactly I am aiming for and how to address the time domain properly. I got used that Dirac manages the phase issues and now after about 20 hours of reading the theoretical papers, posts on different boards, watching youtube, then trying and getting lost again again and again I was thinking to forget about the manual path, to kick in Dirac live and get back to the music enjoyment I am missing... Nevertheless I am enjoying the learning curve and maybe with some help I'll progress sooner.
I understand that the IR is not the tool for the bass alignment. Phase alignment is the way to go. But how exactly ?
I saw many suggestions from simply using the REW time alignment tool to more complex ones but nothing I tried brought the result to the the aligned step/phase/ir. Focusing on one taking the result far from another and vice versa. Remeasuring with the delays applied after the REW simulation brings wrong results in the time domain. Maybe this does not work for my case because I have aligned 2 subs with a quite big delay between each other and now trying to align 1 virtual sub makes all the calculation predictions to collapse. But on the other hand what is the difference in terms of the response and the time domain ? The phase is the phase is the phase. Maybe I am mistaken...
What are the preferred tool(s?), order, goal, verification method... As far as my knowledge goes it should be approximately:
...
My toolbox is full, but I feel empty handed...
Please advice.
I am using a 7.2.4 system that is used for HC and music in a dedicated room. Rough dimensions : 540 cm x 330 cm. Ceiling 260 cm.
The stereo path of my system :
DAC: Denafrips ARES 12TH
Pre/Pro: Emotiva XMC-2
Power: Emotiva XPA-2
Speakers : KEF R3
Subwoofers : 2 x SVS SB-2000 Pro combined with MiniDSP 2x4HD
HTPC with local lossless collection streamed to the DAC exclusively through JRiver with USB connection.
PC with Jriver -> usb to DAC -> balanced to XMC-2 as a pre Amp with bass management -> bass goes to miniDSP with mono single unbalanced connection (both subwoofers connected to miniDSP) - stereo balanced to XPA-2 amp with R3 connected.
Since XMC-2 has several slots for speakers setup, this way I manage the easiest transition between music and HC when needed with a push of a button. Considering every setup is configured properly.
In the past I was using the automatic room correction for both the music and the HC with some tweaks here and there. Audyssey (Denon), ARC (Anthem) and Dirac since Emotiva XMC-1.
I have some knowledge and experience with REW over the years and the calibrated Umik-1 mic I have purchased in the past from the Cross Spectrum. So now I would like to try the manual path for the stereo path.
The MLP for the music is a static single position ( focused ).
The subs are located in opposite side of the room. One is in front of the MLP on the plane of the mains - front short wall - about 1/4 room width, and the second is about middle back wall. Considering the room response this gives the best result on the MLP area.
The subs are aligned between each other in order to maximize the MLP frequency response with 16ms delay for the back wall sub in the miniDSP as simulated inside the REW with the alignment tool.
For a couple of days now I am, trying to align the combined subwoofers response with the mains - but can't figure out what is it exactly I am aiming for and how to address the time domain properly. I got used that Dirac manages the phase issues and now after about 20 hours of reading the theoretical papers, posts on different boards, watching youtube, then trying and getting lost again again and again I was thinking to forget about the manual path, to kick in Dirac live and get back to the music enjoyment I am missing... Nevertheless I am enjoying the learning curve and maybe with some help I'll progress sooner.
I understand that the IR is not the tool for the bass alignment. Phase alignment is the way to go. But how exactly ?
I saw many suggestions from simply using the REW time alignment tool to more complex ones but nothing I tried brought the result to the the aligned step/phase/ir. Focusing on one taking the result far from another and vice versa. Remeasuring with the delays applied after the REW simulation brings wrong results in the time domain. Maybe this does not work for my case because I have aligned 2 subs with a quite big delay between each other and now trying to align 1 virtual sub makes all the calculation predictions to collapse. But on the other hand what is the difference in terms of the response and the time domain ? The phase is the phase is the phase. Maybe I am mistaken...
What are the preferred tool(s?), order, goal, verification method... As far as my knowledge goes it should be approximately:
- Measure 1, 2, 3...
- Calculate 1, 2, 3...
- Apply x' delay
...
My toolbox is full, but I feel empty handed...
Please advice.
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