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Computer
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Platform
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PC, IBM compatible
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Sound and Music
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Yamaha
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OPL4
Yamaha YMF278B OPL4 Application Manual, FM & WAVE TABLE SYNTHESIZER (1994-03)
Yamaha YMF278B OPL4 Application Manual, FM & Wave table Synthesizer LSI (OPL4) (1993-12)
Yamaha YMF704C OPL4-ML FM and Wave Table Synthesizer LSI (1996-12-18)
Yamaha YMF721 OPL4-ML2 FM and Wavetable Synthesizer LSI (1997-07-10)