X1L3 - AY 300 + YM 300 + GT 300 - comparison - eurorack modules

video upload by X1L3

"Side by side comparison of the three flavours of the '300' chip tune module.
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Busy chip tune composition to hit them hard with lots of micro note hopping, and the modulator running 1voct on channel 1 to generate the 'SIDvoice' on the bass line, and to create the drum/percussive sounds when hit with fast CV spikes instead of using the noise channel. Demoscene tricks that i wanted to include in the modules from the start through a sense of completeness in having them behave as close as possible to if they were tied to a CPU.

There's very little difference between the three. The YM is a superior chip and addresses the low level audio channel cross talk that the AY and it's direct clones exhibit. It makes little difference to the sound in a loaded 3 channel composition like this though. The YM is maybe ever so slightly cleaner than the AY and WF.

If you're a masochist like me then you basically get to relive turning your telly up full blast in the 80s to hear the same strident bit of chip tune three times, while pissing your parents off and being told to turn it down, for no other reason than becasue you can 🤣🤣

AY 300 - General instruments - AY-3-8910
YM 300 - Yamaha - YM2149F
GT 300 - Winbond - WF19054

The AY3 was released in 1978 and used in tons of home computers like the ZX Spectrum, Vectrex and Amstrad CPC.

The YM2149 some time in the mid 80s i believe. I remember it well from the Atari ST. And how disappointed i was with the sound of the ST compared to the SID chip in Commodore 64.

The Winbond AY clone is as far as i know still made today for use in slot and pinball machines."