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										 |  |  | # Irem GA20
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										 |  |  | it is a 4 channel PCM sound source used by Irem in their arcades in late 1980s and early 1990s, often paired with [Yamaha YM2151](ym2151.md). | 
					
						
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										 |  |  | the sound chip itself is rather unremarkable, having 8-bit volume and pitch control and no stereo panning... | 
					
						
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										 |  |  | ## effects
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							|  |  |  | none | 
					
						
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							|  |  |  | let's be honest. Furnace has too many chips and a great portion of them are sample chips that do the same task: playing back samples. | 
					
						
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										 |  |  | ## info
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							|  |  |  | this chip uses the [GA20](../4-instrument/ga20.md) instrument type. |