I recently picked up 4 Aura Bass shakers (25watt version) and was wondering if anyone could offer their advice with hooking them up. You see, I have an old 140 watt Sony Pro Logic receiver with 5 channels each at 8 ohms. I don't think a single channel would be enough to power 2 shakers efficiently, so how would I go about hooking each shaker to a separate channel while having them run at 4 ohms? I do have an alternative method to hook up 2 of the shakers, however, there are problems that I don't know how to work around. Perhaps someone would know what to do ( link to thread )... Also, I hear that the effect is much greater if you have the shakers not only on the sub out/LFE channel, but also on all of your speaker channels... of course I don't have any first hand experience with this, so perhaps someone could try this out?