diff --git a/doc/7-systems/ym2612.md b/doc/7-systems/ym2612.md
index 1eeb148e..cbb38e33 100644
--- a/doc/7-systems/ym2612.md
+++ b/doc/7-systems/ym2612.md
@@ -1,6 +1,6 @@
 # Yamaha YM2612
 
-one of two chips that powered the Sega Genesis. It is a six-channel, four-operator FM synthesizer. Channel #6 can be turned into 8-bit PCM player.
+one of two chips that powered the Sega Genesis. It is a six-channel, four-operator FM synthesizer. Channel #6 can be turned into 8-bit PCM player, that via software mixing, thanks to Z80 sound CPU, can play more than one channel of straight-shot samples at once. As of Furnace 0.6pre5, Furnace offers DualPCM, which allows 2 channels ofsoftware-mixed 8-bit PCM samples at 13750 Hz.
 
 # effects