I purchased a Studio Acoustics @@-2006 six-way stereo speaker selector for use with a Philips MC-M570 Micro System. When I connect to the speaker selector, things work ok for a few seconds and then the right channel cuts out. The Philips Micro System works fine when not connected to the speaker selector. I though maybe something was wrong with the speaker selector so I exchanged it for another unit. The new unit does exactly the same thing! Please help. Thanks