unless one of you are tech-savy then no. Cost of repair probably be about new or used price of a mixer. Though I’m not familiar with which Numark is better. I would look at what they got now and see which feature/price point best suits you. I’ve seen people use Numark and hold up. If you’re considering other brands, Stanton makes good mixers as well. After that, its stepping up to Vestax, Ecler, Pioneer and beyond.