If it were me: It sounds like you dropped some cash with these people, and although they are terminated in way that makes them functional, you aren't happy. They should fix that. The connectors they used are perfectly legit- don't get me wrong, but perhaps a bit of a cost saving shortcut? What other "shortcuts" did they take? Who knows.. not exactly the point. If you're unhappy, perhaps you could discuss that with them? Just mention that you'd like a better cosmetic solution that what you ended up with. If you're cordial, they're likely to be understanding. If not, no worries- banana connectors are an easy DIY. Also- You have me a little concerned, not that we can't help here, but regarding the rest of your setup. Sounds like you have some expensive gear and maybe not sure how to set it up correctly??? Be sure to ask lots of questions if you're not sure and feel free to be specific. Even better if you can get a pro out there to help you.