diff --git a/Platform/Apple/tools/jace/src/main/java/jace/apple2e/Speaker.java b/Platform/Apple/tools/jace/src/main/java/jace/apple2e/Speaker.java
index 16f35d32..5579da6e 100644
--- a/Platform/Apple/tools/jace/src/main/java/jace/apple2e/Speaker.java
+++ b/Platform/Apple/tools/jace/src/main/java/jace/apple2e/Speaker.java
@@ -25,6 +25,7 @@ import jace.core.Device;
 import jace.core.Motherboard;
 import jace.core.RAMEvent;
 import jace.core.RAMListener;
+import jace.core.SoundGeneratorDevice;
 import jace.core.SoundMixer;
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -44,7 +45,7 @@ import javax.sound.sampled.SourceDataLine;
  *
  * @author Brendan Robert (BLuRry) brendan.robert@gmail.com
  */
-public class Speaker extends Device {
+public class Speaker extends SoundGeneratorDevice {
 
     static boolean fileOutputActive = false;
     static OutputStream out;
@@ -126,10 +127,10 @@ public class Speaker extends Device {
      * Double-buffer used for playing processed sound -- as one is played the
      * other fills up.
      */
-    byte[] primaryBuffer;
-    byte[] secondaryBuffer;
-    int bufferPos = 0;
-    Timer playbackTimer;
+    private byte[] primaryBuffer;
+    private byte[] secondaryBuffer;
+    private int bufferPos = 0;
+    private Timer playbackTimer;
     private final double TICKS_PER_SAMPLE = ((double) Motherboard.SPEED) / SoundMixer.RATE;
     private final double TICKS_PER_SAMPLE_FLOOR = Math.floor(TICKS_PER_SAMPLE);
     private RAMListener listener = null;
@@ -292,6 +293,8 @@ public class Speaker extends Device {
 
     @Override
     public final void reconfigure() {
+        super.reconfigure();
+        
         if (primaryBuffer != null && secondaryBuffer != null) {
             return;
         }
diff --git a/Platform/Apple/tools/jace/src/main/java/jace/core/SoundGeneratorDevice.java b/Platform/Apple/tools/jace/src/main/java/jace/core/SoundGeneratorDevice.java
new file mode 100644
index 00000000..a6206666
--- /dev/null
+++ b/Platform/Apple/tools/jace/src/main/java/jace/core/SoundGeneratorDevice.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2018 org.badvision.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package jace.core;
+
+/**
+ * Encapsulate a thread-managed sound device, abstracting aspects of buffer and device management
+ */
+public abstract class SoundGeneratorDevice extends Device {
+    public SoundGeneratorDevice(Computer computer) {
+        super(computer);
+    }
+    
+    @Override
+    public void reconfigure() {
+        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    }
+    
+    @Override
+    public void attach() {
+        super.attach();
+        
+    }
+    
+    @Override
+    public void detach() {
+        super.detach();
+        
+    }
+    
+}
diff --git a/Platform/Apple/tools/jace/src/main/java/jace/core/SoundMixer.java b/Platform/Apple/tools/jace/src/main/java/jace/core/SoundMixer.java
index d80f17df..fe0b5910 100644
--- a/Platform/Apple/tools/jace/src/main/java/jace/core/SoundMixer.java
+++ b/Platform/Apple/tools/jace/src/main/java/jace/core/SoundMixer.java
@@ -154,16 +154,14 @@ public class SoundMixer extends Device {
             sdl = availableLines.iterator().next();
             availableLines.remove(sdl);
         }
-        activeLines.put(requester, sdl);
         sdl.start();
+        activeLines.put(requester, sdl);
         return sdl;
     }
 
     public void returnLine(Object requester) {
         if (activeLines.containsKey(requester)) {
             SourceDataLine sdl = activeLines.remove(requester);
-// Calling drain on pulse driver can cause it to freeze up (?)
-//            sdl.drain();
             if (sdl.isRunning()) {
                 sdl.flush();
                 sdl.stop();
@@ -207,16 +205,18 @@ public class SoundMixer extends Device {
 
     @Override
     public void attach() {
-//        if (Motherboard.enableSpeaker)
-//            Motherboard.speaker.attach();
     }
 
     @Override
     public void detach() {
         availableLines.stream().forEach((line) -> {
+            line.flush();
+            line.stop();
             line.close();
-        });
+        });        
         Set requesters = new HashSet(activeLines.keySet());
+        availableLines.clear();
+        activeLines.clear();
         requesters.stream().map((o) -> {
             if (o instanceof Device) {
                 ((Device) o).detach();
@@ -225,15 +225,6 @@ public class SoundMixer extends Device {
         }).filter((o) -> (o instanceof Card)).forEach((o) -> {
             ((Reconfigurable) o).reconfigure();
         });
-        if (theMixer != null) {
-            for (Line l : theMixer.getSourceLines()) {
-//                if (l.isOpen()) {
-//                    l.close();
-//                }
-            }
-        }
-        availableLines.clear();
-        activeLines.clear();
         super.detach();
     }