acoustic system resonators

A Sound Level Meter can determine locations in the room for resonators with better accuracy in many cases than following general instructions or the old "move and listen" technique. YRMV.

A Sound Level Meter can determine locations in the room for resonators with better accuracy in many cases

I think only a Tricorder can help with this level of complexity;

I have found great interactions when using several of these devices at the same time. Presently, I can only use one pair of the Halographs, seven of the Shun Mooks, and the few Acoustic Revive Quartz Resonators on the speaker wall. My H-Cat P-12R line stage has a very effective Wave Timing Control that greatly affects the sound stage and realism of the image. I particular the Halographs, Mpingo Disks, and Brilliant Pebbles fight with the H-Cat's WTC

Shadorne, of course this has been over a 20 year period and usually with one device tried at a time. Once about a year ago, I removed every room resonance device and adjusted the H-Cat. Only then did I seek to reintroduce the resonance devices. If they helped, they stayed.

Tbg,

I figured it was a bit more sane that it sounded in what was a probably a quickly typed response...I just could not resist suggesting Spock take some Tricorder readings ;-)

When setting up a sub for the first time I often feel like calling Scottie and askiing him to beam me up new dilithium crystals....this hobby can be fascinating but it can be a challenge sometimes. Peace ...

Tbg,
The back wall is behind the speakers indeed.
The cups should be resonating freely, standing on their wooden bases, and the surface they are attached to doesn't matter. The position of the resonator in the room (in relation to speakers and listener) has far more influence.