Tim,
My Kharma CE 2.2s weigh a 100-lbs each. The binding posts are 3.5 inches above the bottom edge of speakers and roughly 5-inches above the floor. They are on spikes, which rest on discs. I experience no problems in changing wires. I'm very surprised to hear that you actually have to tip the Avalons to change wires -- I'd say that's a design flaw and unacceptable.
My Kharma CE 2.2s weigh a 100-lbs each. The binding posts are 3.5 inches above the bottom edge of speakers and roughly 5-inches above the floor. They are on spikes, which rest on discs. I experience no problems in changing wires. I'm very surprised to hear that you actually have to tip the Avalons to change wires -- I'd say that's a design flaw and unacceptable.