 since HES playback is always done with SuperGrafx emulation enabled.</p><ul><li><b>huc6280</b> - HuC6280<br>HuC6280 as found in the original PC Engine.</li><br><li><b>huc6280a</b> - HuC6280A<br>HuC6280A as found in the SuperGrafx and CoreGrafx I.  Provides proper channel amplitude centering, but may cause clicking in a few games designed with the original HuC6280's sound characteristics in mind.</li><br><li><b>match</b> - Match emulation mode.<br>Selects "huc6280" for non-SuperGrafx mode, and "huc6280a" fo