changing dedicated line feeding 1 outlet 2 sockets to 4?

Hi,

I have a bedroom system that now needs 4 outlet sockets rather than 2.  The existing outlet sockets are a dedicated line.  I am not looking to put another dedicated line in the bedroom.  I am not interested in yet another power condition or trying a power strip.  The question is really what is the impact of something changing to a 2 gang box 4 outlet outlet sockets from what I have.  As a temporary fix I am using a GE 3plug so that both of my digital sources can share an outlet socket.  The integrated amp has the the other outlet by itself.  I should add that this setup sounds way better than when I had a single digital source into its own outlet (so the effect of the 3plug cannot be so bad (the additional digital source btw is a dac controlling the transport rather than using the transports own inferior dac).

thanks in advance