I’ll tell you why I think moving the outlet to behind the system is a better strategy -
- it allows you to retain your current power conditioner and the cord feeding it
- it gives you an opportunity to use a much better, high quality power cord on the amplifier and plug it directly into the wall. Shorter power cords will be less expensive than the longer length versions.
- you will not have the panel flush with the wall unless there’s nothing plugged into that outlet. The right angle plugs won’t cure your issue
- And finally, the cost of having an electrician run the outlet behind your equipment rack will most likely be cheaper than farting around with new angled plugs, cords and strips (not to mention potential sound quality degradation due to use of lower grade plugs, adapters, etc).
Commercial grade outlets are fine if that’s what you think is good enough. Leviton plugs are not for audio. Hospital grade outlets aren’t either. The design goals there are to create a death grip connection that makes accidentally pulling the plug less possible. None of these connectors or outlets offer any benefit as far as improving sound quality. The hospital grade outlets will strip the plating off the plugs on power cords. Unless you are using all stock cords and have no plans to upgrade them, you’re fine. Other than that, look elsewhere.