diff --git a/doc/manuals/Build-Manual.pdf b/doc/manuals/Build-Manual.pdf
index ced0ea0..546f944 100644
Binary files a/doc/manuals/Build-Manual.pdf and b/doc/manuals/Build-Manual.pdf differ
diff --git a/doc/manuals/MicroDexed-User_Manual/MicroDexed-User_Manual.md b/doc/manuals/MicroDexed-User_Manual/MicroDexed-User_Manual.md
index ed2ef65..20977ce 100644
--- a/doc/manuals/MicroDexed-User_Manual/MicroDexed-User_Manual.md
+++ b/doc/manuals/MicroDexed-User_Manual/MicroDexed-User_Manual.md
@@ -37,6 +37,7 @@ For the original Dexed/msfa software take a look at [Dexed on Github](https://gi
 	* Delay (mono, up to 500ms, with feedback)
 	* Low-pass filter with resonance
 	* Reverb (stereo)
+	* Resonant low-pass filter 
 * Mono sound engine with panorama controller before reverb
 * Up to 20 voices of polyphony
 * Up to 100 banks of 32 voices can be stored on an SD card
diff --git a/doc/manuals/MicroDexed-User_Manual/MicroDexed-User_Manual.pdf b/doc/manuals/MicroDexed-User_Manual/MicroDexed-User_Manual.pdf
index 1e02876..3558cd8 100644
Binary files a/doc/manuals/MicroDexed-User_Manual/MicroDexed-User_Manual.pdf and b/doc/manuals/MicroDexed-User_Manual/MicroDexed-User_Manual.pdf differ
diff --git a/doc/manuals/MicroDexed/MicroDexed.md b/doc/manuals/MicroDexed/MicroDexed.md
index 4d0e5e9..b57a291 100644
--- a/doc/manuals/MicroDexed/MicroDexed.md
+++ b/doc/manuals/MicroDexed/MicroDexed.md
@@ -36,6 +36,7 @@ For the original Dexed/msfa software take a look at [Dexed on Github](https://gi
 	* Delay (mono, up to 500ms, with feedback)
 	* Low-pass filter with resonance
 	* Reverb (stereo)
+	* Resonant low-pass filter 
 * Mono sound engine with panorama controller before reverb
 * Up to 20 voices of polyphony
 * Up to 100 banks of 32 voices can be stored on an SD card
diff --git a/doc/manuals/MicroDexed/MicroDexed.pdf b/doc/manuals/MicroDexed/MicroDexed.pdf
index a6a1900..6f71cbd 100644
Binary files a/doc/manuals/MicroDexed/MicroDexed.pdf and b/doc/manuals/MicroDexed/MicroDexed.pdf differ