I need a extension cord with

I have a dedicated 20 circuit. The problem is that it’s only a duplex box and since I went back to mono blocks, I need more outlets. 
Does someone sell a high ish end cord with a good duplex box or a good quad box on the end? It’s mostly going to be used for power amps, so I don’t need any conditioning.

Thanks all.




Look at the quad box from Parick Cullen. I had one, great quality box for the $.

Look at Panamax products

"Our power management products give your audio/video systems the pure, noise-free power they need for superlative performance, providing longevity to the components connected while protecting them from damage caused by power surges, dirty power, lightning and more."

Used Panamax items can be found on Ebay sometimes