diff --git a/mainwindow.ui b/mainwindow.ui
index c8ae48a..4ae13a0 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -19,6 +19,11 @@
      <layout class="QHBoxLayout" name="horizontalLayout_2">
       <item>
        <widget class="QGroupBox" name="groupBox">
+        <property name="font">
+         <font>
+          <pointsize>14</pointsize>
+         </font>
+        </property>
         <property name="title">
          <string>Amplifier Specifications</string>
         </property>
@@ -115,6 +120,11 @@
       </item>
       <item>
        <widget class="QGroupBox" name="groupBox_2">
+        <property name="font">
+         <font>
+          <pointsize>14</pointsize>
+         </font>
+        </property>
         <property name="title">
          <string>Speaker Specifications</string>
         </property>
@@ -220,6 +230,11 @@
       </item>
       <item>
        <widget class="QGroupBox" name="groupBox_3">
+        <property name="font">
+         <font>
+          <pointsize>14</pointsize>
+         </font>
+        </property>
         <property name="title">
          <string>DA-Converter Specifications</string>
         </property>
@@ -264,6 +279,11 @@
      <layout class="QHBoxLayout" name="horizontalLayout_3">
       <item>
        <widget class="QGroupBox" name="groupBox_4">
+        <property name="font">
+         <font>
+          <pointsize>16</pointsize>
+         </font>
+        </property>
         <property name="title">
          <string>RMS Limiter</string>
         </property>
@@ -383,6 +403,11 @@
       </item>
       <item>
        <widget class="QGroupBox" name="groupBox_5">
+        <property name="font">
+         <font>
+          <pointsize>16</pointsize>
+         </font>
+        </property>
         <property name="title">
          <string>Peak Limiter</string>
         </property>