So, this is where I'll be heading with my "experiments" with the Harbeths...a Design of Experiments (aka DOE) to fine-tune the in-room response.
Some of you may remember this study from back 2011 when I did it for optimizing my Dynaudio Contour S3.4s (oops, can I say that in a Harbeth forum?  ).
Below is the ANOVA table and Leverage plots in JMP 10 for the 20 Hz response based on the DOE.
The prediction profiler telling me where to set the Sub's controls for maximal response at the room mode peaks and nulls.
And, of course. the surface plot for correcting a 155 Hz mode... 
For the 'Beths, I'll probably be also looking at subwoofer position relative to the corner walls its sitting in. I'll use distance from the two walls as the continuous data variable.
I'll be using JMP 14 and a Custom Design so that I can add quadratics to the model to examine curvature in the functional responses.
When I showed this DOE to Stirling Trayle, he was all over it...
"The power of DOE compels you!"
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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.
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