diff --git a/src/duckstation-qt/CMakeLists.txt b/src/duckstation-qt/CMakeLists.txt
index 94ff591ae..b5654bba0 100644
--- a/src/duckstation-qt/CMakeLists.txt
+++ b/src/duckstation-qt/CMakeLists.txt
@@ -16,7 +16,6 @@ set(SRCS
   advancedsettingswidget.cpp
   advancedsettingswidget.h
   advancedsettingswidget.ui
-  audioexpansionsettingsdialog.ui
   audiosettingswidget.cpp
   audiosettingswidget.h
   audiosettingswidget.ui
diff --git a/src/duckstation-qt/audioexpansionsettingsdialog.ui b/src/duckstation-qt/audioexpansionsettingsdialog.ui
deleted file mode 100644
index 45a5c0a28..000000000
--- a/src/duckstation-qt/audioexpansionsettingsdialog.ui
+++ /dev/null
@@ -1,476 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>AudioExpansionSettingsDialog</class>
- <widget class="QDialog" name="AudioExpansionSettingsDialog">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>614</width>
-    <height>371</height>
-   </rect>
-  </property>
-  <property name="windowTitle">
-   <string>Audio Expansion Settings</string>
-  </property>
-  <layout class="QFormLayout" name="formLayout">
-   <item row="2" column="0">
-    <widget class="QLabel" name="label_6">
-     <property name="text">
-      <string>Circular Wrap:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="2" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_2">
-     <item>
-      <widget class="QSlider" name="circularWrap">
-       <property name="minimum">
-        <number>0</number>
-       </property>
-       <property name="maximum">
-        <number>360</number>
-       </property>
-       <property name="value">
-        <number>90</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>10</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="circularWrapLabel">
-       <property name="text">
-        <string>30</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="3" column="0">
-    <widget class="QLabel" name="label_7">
-     <property name="text">
-      <string>Shift:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="3" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_3">
-     <item>
-      <widget class="QSlider" name="shift">
-       <property name="minimum">
-        <number>-100</number>
-       </property>
-       <property name="maximum">
-        <number>100</number>
-       </property>
-       <property name="value">
-        <number>20</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>5</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="shiftLabel">
-       <property name="text">
-        <string>20</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="4" column="0">
-    <widget class="QLabel" name="label_8">
-     <property name="text">
-      <string>Depth:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="4" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_4">
-     <item>
-      <widget class="QSlider" name="depth">
-       <property name="minimum">
-        <number>0</number>
-       </property>
-       <property name="maximum">
-        <number>50</number>
-       </property>
-       <property name="value">
-        <number>10</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>2</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="depthLabel">
-       <property name="text">
-        <string>10</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="5" column="0">
-    <widget class="QLabel" name="label">
-     <property name="text">
-      <string>Focus:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="5" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_6">
-     <item>
-      <widget class="QSlider" name="focus">
-       <property name="minimum">
-        <number>-100</number>
-       </property>
-       <property name="maximum">
-        <number>100</number>
-       </property>
-       <property name="value">
-        <number>20</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>5</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="focusLabel">
-       <property name="text">
-        <string>20</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="6" column="0">
-    <widget class="QLabel" name="label_2">
-     <property name="text">
-      <string>Center Image:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="6" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_7">
-     <item>
-      <widget class="QSlider" name="centerImage">
-       <property name="minimum">
-        <number>0</number>
-       </property>
-       <property name="maximum">
-        <number>100</number>
-       </property>
-       <property name="value">
-        <number>20</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>5</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="centerImageLabel">
-       <property name="text">
-        <string>20</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="7" column="0">
-    <widget class="QLabel" name="label_3">
-     <property name="text">
-      <string>Front Separation:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="7" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_8">
-     <item>
-      <widget class="QSlider" name="frontSeparation">
-       <property name="minimum">
-        <number>0</number>
-       </property>
-       <property name="maximum">
-        <number>100</number>
-       </property>
-       <property name="value">
-        <number>20</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>5</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="frontSeparationLabel">
-       <property name="text">
-        <string>20</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="8" column="0">
-    <widget class="QLabel" name="label_5">
-     <property name="text">
-      <string>Rear Separation:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="8" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_9">
-     <item>
-      <widget class="QSlider" name="rearSeparation">
-       <property name="minimum">
-        <number>0</number>
-       </property>
-       <property name="maximum">
-        <number>100</number>
-       </property>
-       <property name="value">
-        <number>20</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>5</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="rearSeparationLabel">
-       <property name="text">
-        <string>20</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="9" column="0">
-    <widget class="QLabel" name="label_9">
-     <property name="text">
-      <string>Low Cutoff:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="9" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_10">
-     <item>
-      <widget class="QSlider" name="lowCutoff">
-       <property name="minimum">
-        <number>0</number>
-       </property>
-       <property name="maximum">
-        <number>100</number>
-       </property>
-       <property name="value">
-        <number>20</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>5</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="lowCutoffLabel">
-       <property name="text">
-        <string>20</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="10" column="0">
-    <widget class="QLabel" name="label_10">
-     <property name="text">
-      <string>High Cutoff:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="10" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_11">
-     <item>
-      <widget class="QSlider" name="highCutoff">
-       <property name="minimum">
-        <number>0</number>
-       </property>
-       <property name="maximum">
-        <number>100</number>
-       </property>
-       <property name="value">
-        <number>20</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>5</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="highCutoffLabel">
-       <property name="text">
-        <string>20</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="11" column="0" colspan="2">
-    <widget class="QDialogButtonBox" name="buttonBox">
-     <property name="standardButtons">
-      <set>QDialogButtonBox::StandardButton::Close|QDialogButtonBox::StandardButton::RestoreDefaults</set>
-     </property>
-    </widget>
-   </item>
-   <item row="0" column="0" colspan="2">
-    <layout class="QHBoxLayout" name="horizontalLayout_5">
-     <property name="bottomMargin">
-      <number>10</number>
-     </property>
-     <item>
-      <widget class="QLabel" name="icon">
-       <property name="minimumSize">
-        <size>
-         <width>32</width>
-         <height>32</height>
-        </size>
-       </property>
-       <property name="maximumSize">
-        <size>
-         <width>32</width>
-         <height>32</height>
-        </size>
-       </property>
-       <property name="alignment">
-        <set>Qt::AlignmentFlag::AlignLeading|Qt::AlignmentFlag::AlignLeft|Qt::AlignmentFlag::AlignTop</set>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="label_4">
-       <property name="text">
-        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-weight:700;&quot;&gt;Audio Expansion Settings&lt;/span&gt;&lt;br/&gt;These settings fine-tune the behavior of the FreeSurround-based channel expander.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
-       </property>
-       <property name="textFormat">
-        <enum>Qt::TextFormat::RichText</enum>
-       </property>
-       <property name="alignment">
-        <set>Qt::AlignmentFlag::AlignLeading|Qt::AlignmentFlag::AlignLeft|Qt::AlignmentFlag::AlignTop</set>
-       </property>
-       <property name="wordWrap">
-        <bool>true</bool>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-   <item row="1" column="0">
-    <widget class="QLabel" name="label_11">
-     <property name="text">
-      <string>Block Size:</string>
-     </property>
-    </widget>
-   </item>
-   <item row="1" column="1">
-    <layout class="QHBoxLayout" name="horizontalLayout_12">
-     <item>
-      <widget class="QSlider" name="blockSize">
-       <property name="minimum">
-        <number>0</number>
-       </property>
-       <property name="maximum">
-        <number>8192</number>
-       </property>
-       <property name="singleStep">
-        <number>16</number>
-       </property>
-       <property name="pageStep">
-        <number>128</number>
-       </property>
-       <property name="value">
-        <number>1024</number>
-       </property>
-       <property name="orientation">
-        <enum>Qt::Orientation::Horizontal</enum>
-       </property>
-       <property name="tickPosition">
-        <enum>QSlider::TickPosition::TicksBelow</enum>
-       </property>
-       <property name="tickInterval">
-        <number>128</number>
-       </property>
-      </widget>
-     </item>
-     <item>
-      <widget class="QLabel" name="blockSizeLabel">
-       <property name="text">
-        <string>30</string>
-       </property>
-      </widget>
-     </item>
-    </layout>
-   </item>
-  </layout>
- </widget>
- <resources/>
- <connections/>
-</ui>
diff --git a/src/duckstation-qt/audiosettingswidget.cpp b/src/duckstation-qt/audiosettingswidget.cpp
index 2dbab058b..fdc5d7263 100644
--- a/src/duckstation-qt/audiosettingswidget.cpp
+++ b/src/duckstation-qt/audiosettingswidget.cpp
@@ -5,7 +5,6 @@
 #include "qtutils.h"
 #include "settingswindow.h"
 #include "settingwidgetbinder.h"
-#include "ui_audioexpansionsettingsdialog.h"
 #include "ui_audiostretchsettingsdialog.h"
 
 #include "core/spu.h"
diff --git a/src/duckstation-qt/duckstation-qt.vcxproj b/src/duckstation-qt/duckstation-qt.vcxproj
index 2c153359b..48d849c26 100644
--- a/src/duckstation-qt/duckstation-qt.vcxproj
+++ b/src/duckstation-qt/duckstation-qt.vcxproj
@@ -324,9 +324,6 @@
     <QtUi Include="controllerbindingwidget_negconrumble.ui">
       <FileType>Document</FileType>
     </QtUi>
-    <QtUi Include="audioexpansionsettingsdialog.ui">
-      <FileType>Document</FileType>
-    </QtUi>
     <QtUi Include="audiostretchsettingsdialog.ui">
       <FileType>Document</FileType>
     </QtUi>
diff --git a/src/duckstation-qt/duckstation-qt.vcxproj.filters b/src/duckstation-qt/duckstation-qt.vcxproj.filters
index 2e836a206..ea984d9ee 100644
--- a/src/duckstation-qt/duckstation-qt.vcxproj.filters
+++ b/src/duckstation-qt/duckstation-qt.vcxproj.filters
@@ -279,7 +279,6 @@
     <QtUi Include="graphicssettingswidget.ui" />
     <QtUi Include="memoryscannerwindow.ui" />
     <QtUi Include="controllerbindingwidget_negconrumble.ui" />
-    <QtUi Include="audioexpansionsettingsdialog.ui" />
     <QtUi Include="audiostretchsettingsdialog.ui" />
     <QtUi Include="controllerbindingwidget_justifier.ui" />
     <QtUi Include="selectdiscdialog.ui" />