The SID chip audio comparison sits front and center in this video, as the Triple Freedom team records and analyzes four different SID chips: the original SID, ARMSID, X-SID, and SWINSID. Each chip faces a pure PCM audio test through a Sound Blaster Z SE line input to capture every nuance. No compression, no tricks—just the real sound of each SID under pressure.
To keep things fair, the audio output is normalized across the chips, since each has its own quirks with volume. The team kicks off with a set of standard audio signals and filter tests, pushing the chips to reveal their character. Then, things get lively with a demo featuring music inspired by the “Axel Foley” theme. The final challenge comes from a playthrough of “International Karate+,” where music and effects bring out differences in tone and filter handling.
During the test, the original SID sets the benchmark. The ARMSID breezes through with impressive accuracy, passing every test. X-SID struggles with the analog filter emulation, but still offers a faithful experience for most uses. SWINSID, while similar to X-SID in its digital approach, produces slightly lower output.
The video’s filter comparison segment is the highlight, revealing subtle but important distinctions. If you want to know how each SID chip shapes the classic Commodore 64 sound, this analysis makes every nuance clear. For those who want to judge with their own ears, the video provides direct, normalized recordings from each chip. Catch the full audio comparison in the video and pick your favorite SID.





