Make The Audio Connections
We feel like it's best to connect everything up before you do the final assembly as it's easier to turn things around while the turntable is not fully assembled and everything should still be protected at this point.
The A1 comes with a nice interconnect cable already attached. For most people, you will plug the other end into an aux input on their receiver or integrated amp. Or if you have a set of powered speakers you will be using, connect them to the RCA audio inputs.
The A1 comes with a very good built-in phono preamp that is turned on when you get the turntable. If your powered speakers have a little switch to engage a phono preamp, be sure and set that to off.
For this type of connection, you can ignore the ground wire on the cable.
If you do want to use your own phono preamp, there is a little switch under the platter that will turn off the built-in phono preamp. If you bypass the internal phono preamp you’ll need to connect it to a phono input for a moving magnet cartridge and connect the ground wire.