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Old 05-01-2021, 02:06 AM
n_brio n_brio is offline
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Default bass trap and or someting more

I have now done some messurement.

with the phase 0 on the sub (purple only olympica 3)
https://www.bildtagg.se/file/225lv0y2dtfr7n77menfk7p

RT60 phase 0 on the sub
https://www.bildtagg.se/file/rne6omfkkv7w72sgva9y2zn

Waterfall phase 0 on the sub
https://www.bildtagg.se/file/9mcks6v9n1tpor6r3yudcbs

with the phase 180 on the sub (purple only olympica 3)
https://www.bildtagg.se/file/jxg35tcf7li3a9j4dnvkaq84

RT60 phase 180 on the sub
https://www.bildtagg.se/file/i1jzvrg6wcqeew30320i40qw

Waterfall phase 180 on the sub
https://www.bildtagg.se/file/6wu4sy384wenv3bh7okqn8p


would it help to add bass traps to take the edge of 40hz? And i where would i place them, in the sub corner or/and the oppisite?

what more tings do i need?
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Old 05-01-2021, 07:22 AM
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crwilli crwilli is offline
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Default

As mentioned before, absorbing sound at 40Hz is extremely difficult. This article brings that point home.

https://www.acousticfields.com/how-d...-a-small-room/

I would suggest the addition of an external active crossover. Then you could set the high pass filter above 40Hz on your main speakers and locate your sub(s) in the room to minimize their resonance at 49 Hz. I have used a McIntosh MEN220 to good effect in an old system and now use a JL Audio CR-1 in my current system.

As an aside - There is little point in setting REW to sweep below 20Hz. What ever data you are seeing there is useless.
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Main room - Sonus Faber Stradivari, 2 X JL Audio F113v2 & CR-1 Crossover, Bricasti M21 PreAmp & DAC, Bricasti M28 Mono Amplifiers, SilenZio v.2 Audio by -E- Media Server w/JCat NET Card XE & HD Plex 300 LPSU (running ROON), GigaFoil v4, Keces P3 with Ghent PC, 9 M Supra Cat 8+ and 0.65 M Revelation Audio ethernet cables, Shunyata Denali 6000/S v2.

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Old 05-01-2021, 07:42 AM
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crwilli crwilli is offline
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More fun reading.

http://www.moultonlabs.com/more/taming_the_big_wave/
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Main room - Sonus Faber Stradivari, 2 X JL Audio F113v2 & CR-1 Crossover, Bricasti M21 PreAmp & DAC, Bricasti M28 Mono Amplifiers, SilenZio v.2 Audio by -E- Media Server w/JCat NET Card XE & HD Plex 300 LPSU (running ROON), GigaFoil v4, Keces P3 with Ghent PC, 9 M Supra Cat 8+ and 0.65 M Revelation Audio ethernet cables, Shunyata Denali 6000/S v2.

Stillpoint Apertures, Minis and Ultra SS footers, GIK Bass Traps, Vicoustics Waveguide panels, WW Platinum Eclipse 8 SCs, Silver Electra 7 PCs, Silver Eclipse 7 ICs, Shunyata Sigma HC v2 PC, 2 X Alpha v2 NRs, Venom Defender, 3 X 20 Ampere Power lines, PS Audio Powerports and numerous Noise Harvesters. Furutech Flex 50, Cable risers, HRS dampeners
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