Now, there’s a way to splice speaker wires, and then there’s a better way. You could twist speaker wires together and use electrical tape. But tape wears out over time, and the smallest tug on the wires can easily separate that type (usually a Y) of connection. Spool of speaker wire (matching gauge of existing wire)Click to see full answer. Likewise, how do you solder two speaker wires together? By Mike Allen The most secure and durable way to splice two wires together is to solder them. 1) Strip the wires of about 1/2 in. 2) Heat the joint with a soldering iron or pencil from underneath. 3) Heat the shrink tube to make it shrink down around the wire. 4) Use more shrink tube to bundle multiple connections. Subsequently, question is, can you run two speakers one output? Summary of Connecting 2 speakers. There are only really two ways to connect 2 speakers to one amplifier – either in parallel or series. If each speaker has an impedance of 8 ohms or more, then you can generally connect them in parallel. Subsequently, question is, can you splice speaker wire to RCA? When connecting speaker wires to RCA Plugs, remove the cover from one of your RCA plugs and insert the speaker wire inside. Connect the positive wire to the plug coming from the rear. Do this by soldering them together. As for the negative wire, connect it to the tab and solder it there as well.Should I wire my speakers in series or parallel?Series – When you wire (hook-up) speakers in Series, the speakers resistance (as measured in ohms) is additive – i.e. putting two 8 ohm speakers in Series results in a 16-ohm load. Parallel – When wiring in parallel, the resistance of the speakers decreases.