I did not know until today that you could configure DOSBox to emulate an Adlib without a Sound Blaster. Just set sbtype=none and oplmode=opl2. You will not hear digitized voices in games that support Sound Blaster, so if they have alternative Adlib sound effects, you can hear those if the game has a Sound Blaster autodetect scheme when it starts up that cannot be bypassed. I thought it was something special for the DOSBox-X branch, but its right there in 0.74.