Radio Power Supply in HiFi Application

Hello everyone, long time forum reader first time poster. I have what might be considered a noob question by some so forgive my ignorance: what’s the difference between radio linear power supply, “lab”, and the audiophile ones? I know the audiophile ones state they’re focused on reducing noise, but wouldn’t the others have this same purpose? The reason I ask is because I picked a used marine radio LPS for $20 locally to use with the uptone Mac mini conversion kit to get me by until I can afford something better, but the sound quality upgrade has been very satisfactory considering the $200 investment, so I’m now wondering whether it’s really worth spending the extra money for an uptone or sbooster for can additional to $700 or so. Hope to hear thoughts/facts on the topic and thanks in advance,

Mat