Attaching RTi-A1 on pivoting wall mounts.

My system is in the corner and I am using the RTi-A1's as height speakers. They need to mounting to swiveling mounts so I can aim them to the listening positions. They would be mounted about 7' high angled inward about 30 degrees from the mounting wall behind and also angled downward about 15 degrees.. The single keyhole on the back wont keep the speaker very well attached on its own.

Have you done this and if so how did you mount them? What mounts did you purchase?
Thanks for any insights.

Comments