Pair of 2 Channel Interfaces for 4 Turntables

If you’re trying to get started on a budget, mixing “in the box” (i.e. using internal mixing mode) is probably the cheapest way to do things, which would allow you to use your laptop / computer’s internal sound card or a single external soundcard.

Do you already have other kit that you want to use (turntables, CD decks, mixer etc)?