Greetings All,

After reading about Steve's findings about tilting back his larger ZF15M & L baffles 7 1/2 degrees I decided to experiment a bit.

Putting some standard rubber door stops underneath the front off Randy's baffles resulted in a taller soundstage but I did not like the loss of lower end energy. The balance was off and the sound was lean to my ears. Probably a 10-12 degree tilt.

Next I placed two Gingko Audio Arch 1 resonance devices under the front of the baffles. I have primarily used these arches underneath my Omega XRS SAHO speakers to tighten up bass response. They raise the front of the baffles about 5 degrees (1 1/2 inches).  Well bless my soul, the same frequency balance but a larger and deeper soundstage. These little babies worked some magic that was completely unexpected.

So I going to keep them in place!  BTW, my Modwright PH 9.0 phono preamplifier tubes and capacitors have settled in nicely after about 50 hours. I'll be posting a small review elsewhere on the forum.

Cheers,

HK

Geno,

Here's a link to info and pictures of the arch:
https://www.ginkgoaudio.com/archtech/

HK

I raised my Lii 15 baffles about 3/8 of an inch in the front using printing paper. It is not necessarily a permanent solution but in my room, the height  was the best compromise between a better sound stage and bass output. I do not sense a lack of bass at all at this angle.

Geno,

Two under the front of the speaker, oriented front to back. Easy, peasey.

HK

Geno

About 2.5" W & 3.25" L. Not very large. Heck if I know what materials they used to build them.

HK