diff --git a/documentation/asciidoc/accessories/iqaudio/advanced.adoc b/documentation/asciidoc/accessories/iqaudio/advanced.adoc
index 60d1016e3..6e046a089 100644
--- a/documentation/asciidoc/accessories/iqaudio/advanced.adoc
+++ b/documentation/asciidoc/accessories/iqaudio/advanced.adoc
@@ -1,36 +1,35 @@
 == Hardware information
 
-=== GPIO usage / Pin headers
+=== GPIO usage 
 
-Raspberry Pi Audio boards take advantage of a number of Raspberry Pi Pi signals in
-order to operate successfully. Some of these signals are solely for the use of the board and
+Raspberry Pi audio boards take advantage of a number of pins on the GPIO header in
+order to operate successfully. Some of these pins are solely for the use of the board, and
 some can be shared with other peripherals, sensors, etc.
 
 The following Raspberry Pi GPIO pins will be used by the audio boards:
 
-* ALL POWER PINS
-* ALL GROUND PINS
+* All power pins
+* All ground pins
 * GPIO 2/3 (I2C)
 * GPIO 18/19/20/21 (I2S)
 
 If appropriate then the following are also used:
 
-* GPIO 22 (DigiAMP+ mute / unmute support)
-* GPIO 23/24 for Rotary Encoder (physical volume control) or status LED (Codec Zero)
-* GPIO 25 for the IR Sensor.
-* GPIO 27 for the Rotary Encoder push switch / Code Zero switch
+* GPIO 22 (DigiAMP+ mute/unmute support)
+* GPIO 23/24 for rotary encoder (physical volume control) or status LED (Codec Zero)
+* GPIO 25 for the IR Sensor
+* GPIO 27 for the rotary encoder push switch/Code Zero switch
 
 === DAC PRO, DAC{plus}, DigiAMP{plus}, Codec Zero
 
 image::images/pin_table_new.jpg[width="80%"]
 
-The DAC PRO, DAC{plus}, DigiAMP{plus} re-expose the Raspberry Pi signals allowing additional sensors etc
-to be added easily. Please note that some signals are for exclusive use (I2S and EEPROM) for some
-of our boards, others such as I2C can be shared across multiple boards.
+The DAC PRO, DAC{plus} and DigiAMP{plus} re-expose the Raspberry Pi signals, allowing additional sensors and peripherals
+to be added easily. Please note that some signals are for exclusive use (I2S and EEPROM) by some
+of our boards; others such as I2C can be shared across multiple boards.
 
 image::images/pin_out_new.jpg[width="80%"]
 
-NOTE: Header is Digikey Part number https://www.digikey.co.uk/en/products/detail/harwin-inc/M20-9762042/3727862[M20-9762042] (CONN HEADER VERT 40POS 2.54MM).