All of your components should have a label on the rear panel indicating maximum current draw in Amps. A long as the total current draw from all the components that are plugged into that ’duplex’ outlet is less than 15/20 Amps you can safely use a power strip or a multi-adapter like the one shown in the link by yogiboy.
Unless your components are being ’starved’ of adequate voltage I don’t see how the "SOUND" will suffer.
How to identify wall outlet capacity:
http://www.irv2.com/forums/attachment.php?attachmentid=119564&stc=1&d=1456094434
Unless your components are being ’starved’ of adequate voltage I don’t see how the "SOUND" will suffer.
How to identify wall outlet capacity:
http://www.irv2.com/forums/attachment.php?attachmentid=119564&stc=1&d=1456094434