Hi!

I have an Cambridge A500RC amplifier and I`m trying to connect a turntable to it,but all i get is low volume in my speakers.As i know i need preamp.I want to be able to connect the laptop and record player at the same time to A500 and to switch between them with a press of a button. Without need to change cables every time i want to switch between the laptop and record player.It is possible or it`s just my imagination?I have found this ART USB PhonoPlus V2 preamp,but i`m not sure if this is what i`m looking for.Can someone help me with this?

Thanks