A
addictaudio
Audioholic
Those are the ones, but the way that they did it, it looks horrible aesthetically. Those ruber boots just keep sliding back and forth, and are not attached to the actual boot, thus potentially letting moisture and dust in there. When they proposed to build these wires and run in-walls, I was under the impression that the end result was going to look like actual terminated cables, but they look much worse, and like they did a mickey mouse job. I will see if I can take and post a picture when I have time.They have to be stripped with all banana connectors.
IMO, you are talking about these:
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There's nothing wrong with those. They should work just fine. Basically, I would not change them out unless they are falling off or damaged.