- Room correction - DrChaos 08:31:47 02/28/25
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- In Reply to: RE: LRS as surround speakers? posted by dumpingground on February 25, 2025 at 11:11:53
> What has been your experience with DIRAC and Magnepan dipoles? Does the DIRAC algorithms handle the speaker dipole dispersion patterns ok?
I use Anthem ARC but I suspect the Dirac would be the same.
I had great results but only if limiting the max frequency of correction to 1000 Hz or below. Do more, and the Maggie Magic is snuffed, the immersive hyper-realistic soundfield somehow doesn't happen.
The Anthem manual recommends similarly when using Martin Logan ESL speakers (Anthem and ML are jointly owned) so they know this effect.
With the ARC the crossover to the subwoofer was fantastic and smooth, and taking out the low bass frequencies from the planar panel (there is a resonance between 40-55 Hz on all maggies I think) cleaned up the dynamics, and achieved the "snap" and some of the density of the best cone speakers while keeping the superior immersion and liquidity.
- RE: LRS as surround speakers? - MarcL 12:18:28 02/25/25
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- In Reply to: RE: LRS as surround speakers? posted by dumpingground on February 25, 2025 at 11:11:53
Dirac handles Magnepans just fine. I did my original calibrations in 2018 when I just had 3.7 and MMGC and other surrounds. I've also done calibrations for a friend who has 3.7i and also Minis. And I did the calibration for an Atmos room with all Maggies at Capital Audio Fest.
The twist in my current setup is I use the Rooze setup for the front 3.7 pair. That setup happens to work well in my room - doesn't work in all rooms. But, it puts the speakers 45 degrees pointed at the wall, and the rear wave goes across the back, and I had to do a lot of adjusting so that Dirac would see the primary reflection as the source rather than leaking front and back waves. I solved that.
For a normal setup with speakers pointed at the listening position Dirac has no issues, and it does an amazing job with phase, impulse and amplitude correction.
Also note my liberal use of diffusion. Here's my current drawing. The tan things at the edge of each 3.7 are oak baffles screwed to the edge.
Agilist, Musician, Photographer, Audiophile
7.1.4 Magneplanar: 3.7, CCR, LRS, MC1(4), DWM(2); Emotiva B1+; GR Research OB Dipole Subs (2x3); Emotiva XMC-2; Nord One NC500DM; Nord Three 1ET7040SA; VTV NC502MP; Crown XLi800;OPPO 205
- RE: LRS as surround speakers? - dumpingground 17:24:13 02/25/25
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- In Reply to: RE: LRS as surround speakers? posted by MarcL on February 25, 2025 at 12:18:28
I see your GIK Gridfuser diffusion products. What are the other diffusion products in your setup? It looks like you have several different products in your room.
- RE: LRS as surround speakers? - MarcL 17:42:15 02/25/25
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- In Reply to: RE: LRS as surround speakers? posted by dumpingground on February 25, 2025 at 17:24:13
30 Vicoustic Multifusers ... front wall and sides, overhead and slightly behind the couch, side walls left and right of the listening position. Some 3" 1D diffusers (can't remember the brand) on top of bass traps around the ceiling corners. A couple Gridfusers on the rear wall. And lots of DIY bass trap material in all four corners and behind the TV.
The way it happened was I had way too much absorption and I found the thinner diffusers first, then I found the Vicoustic ones and added them as I found them on sale or B-stock.
With the dimensions of the room I didn't want hard reflections so I felt that adding diffusion was the best way to keep the sound in the room without making it too dead.
Agilist, Musician, Photographer, Audiophile
7.1.4 Magneplanar: 3.7, CCR, LRS, MC1(4), DWM(2); Emotiva B1+; GR Research OB Dipole Subs (2x3); Emotiva XMC-2; Nord One NC500DM; Nord Three 1ET7040SA; VTV NC502MP; Crown XLi800;OPPO 205
- RE: LRS as surround speakers? - MarcL 17:42:15 02/25/25
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- RE: LRS as surround speakers? - dumpingground 17:24:13 02/25/25
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