diff --git a/doc/7-systems/ay8910.md b/doc/7-systems/ay8910.md
index d6a9376c0..393b3f341 100644
--- a/doc/7-systems/ay8910.md
+++ b/doc/7-systems/ay8910.md
@@ -6,7 +6,7 @@ it is a 3-channel square/noise/envelope sound generator. the chip's powerful sou
 
 the AY-3-8914 variant was used in Intellivision, which is pretty much an AY with 4 level envelope volume per channel and different register format.
 
-Furnace is capable of doing software sample playback on AY-3-8910, where all 3 channels can play 4-bit PCM samples (at the cost of a very high CPU usage).
+Furnace is capable of doing software sample playback on AY-3-8910, where all 3 channels can play 4-bit PCM samples (at the cost of a very high CPU usage) and utilize CPU timer effects, providing all kinds of modulation (PWM and envelope distortion) effects, again at the cost of a higher CPU usage. Songs utilizing timer effects may not sound as intented after VGM export.
 
 ## effects