I've been thinking about doing some sort of audio upgrade on my Mousin' Around after hearing a Rollergames with great sound. I asked what speakers had been added and according to the owner of the machine the speakers were original and all that was added was Pinsound. The thing is, I don't want Pinsound as from my understanding it would cause a lot of features in Mousin' Around's sound package to be lost, such as the sound effects and music cues that change key depending on what key the main track is in. I'd also be concerned about things like the lights blinking in time with the music getting out of sync from what Pinsound is playing. On the other hand, from what I've read, just upgrading the speakers likely won't improve the sound that much.
So, what I'm wondering is, how I can best improve the audio quality on the game without using a Pinsound? Are there any Pinsound alternatives that don't completely override the existing audio board but still improve quality (Just the quality of the music of course, I know the sound clips can't be improved at all)? Or is getting better speakers and an external sub the best I can do?