I plug my RCA to mini-adaptor into the headphone jack on my MacBook Pro, that's how I watch movies. Then to improve the sound I move one Synergistic ECT and stick it on the laptop. Finally I place one of the amazing eCards on it. These improve both image and sound. It works really well and my standards are fairly high. https://systems.audiogon.com/systems/8367
Yes you can do even better with a DAC. A DAC that will also sound even better with an aftermarket power cord. And sitting on Cones. On a good Shelf. With a better interconnect. Before you know it you've spent as much as the laptop, which ultimately is what you still have, a movie off a laptop. Which can be quite good, and very cost effective. But only as long as you let it be cost effective.
Yes you can do even better with a DAC. A DAC that will also sound even better with an aftermarket power cord. And sitting on Cones. On a good Shelf. With a better interconnect. Before you know it you've spent as much as the laptop, which ultimately is what you still have, a movie off a laptop. Which can be quite good, and very cost effective. But only as long as you let it be cost effective.