Sony’s One-Bit DACs and Panasonic’s legendary MASH DACs helped define portable CD audio in the 1990s—but do they actually sound different? In this video, I’m putting the Sony D-131 head-to-head with the Panasonic SL-S180, two portable CD players that represent very different approaches to digital audio conversion. Is Sony’s One-Bit technology smoother and more refined, or does Panasonic’s MASH architecture deliver the more engaging listening experience? We’ll take a look at the technology behind these iconic players, explore what made each approach unique, and most importantly, sit down for some real-world listening impressions to find out if the differences are actually audible. Can you hear the difference between vintage DAC architectures? Let me know which side you’re on in the comments below! Custom 45 Adapter Shop: https://ebay.com/usr/record-ology Amazon Store (Recommended Products): https://www.amazon.com/shop/recordology Buy Me A Coffee: https://www.buymeacoffee.com/recordology #CDPlayer #Sony #Panasonic #VintageAudio #DAC #CompactDisc #OneBitDAC #MASHDAC #PortableCDPlayer #Recordology