So, I followed up on Craig's suggestion and have been playing around with placement of the 30.2s. I turned the sub off to fine-tune the position of the mains, and I'm using a laser "tape measure" to measure the position of the mic to each speaker.
This plot is from my "#2" listening position, which is along a diagonal; there is effectively no back wall in this config, as the speakers fire down a 30' long hallway. This is how I listened to my Dyns for many years for "critical listening". The speakers are 9 1/2 feet from the mic; the speakers are ~2 meters apart per Harbeth's guidance.
This plot is double the resolution of the previous plot, with a 1:6 smoothing and is the average of both the L and R channels. Target SPL is 75 dB, so the horizontal reference line is set to that in the plot.
I dunno, this seems to be lookin' pretty good....as Craig mentioned, it looks like I want the sub to bring up just the range under 80 Hz.
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components.
Last edited by Puma Cat; 08-29-2019 at 01:33 AM.
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