diff --git a/src/xenia/apu/xma_context.h b/src/xenia/apu/xma_context.h
index 558f63633..2351e706f 100644
--- a/src/xenia/apu/xma_context.h
+++ b/src/xenia/apu/xma_context.h
@@ -203,7 +203,16 @@ class XmaContext {
   virtual bool Work() { return false; };
 
   virtual void Enable() {};
-  virtual bool Block(bool poll) { return 0; };
+  virtual bool Block(bool poll) {
+    std::unique_lock<xe_mutex> lock(lock_, std::try_to_lock);
+    if (!lock.owns_lock()) {
+      if (poll) {
+        return false;
+      }
+      lock.lock();
+    }
+    return true;
+  }
   virtual void Clear() {};
   virtual void Disable() {};
   virtual void Release() {};
diff --git a/src/xenia/apu/xma_context_fake.cc b/src/xenia/apu/xma_context_fake.cc
index c77f471d0..edb649992 100644
--- a/src/xenia/apu/xma_context_fake.cc
+++ b/src/xenia/apu/xma_context_fake.cc
@@ -139,17 +139,6 @@ void XmaContextFake::Enable() {
   set_is_enabled(true);
 }
 
-bool XmaContextFake::Block(bool poll) {
-  if (!lock_.try_lock()) {
-    if (poll) {
-      return false;
-    }
-    lock_.lock();
-  }
-  lock_.unlock();
-  return true;
-}
-
 void XmaContextFake::Clear() {
   std::lock_guard<xe_mutex> lock(lock_);
   XELOGAPU("XmaContextFake: reset context {}", id());
diff --git a/src/xenia/apu/xma_context_fake.h b/src/xenia/apu/xma_context_fake.h
index edf167e6e..62930e294 100644
--- a/src/xenia/apu/xma_context_fake.h
+++ b/src/xenia/apu/xma_context_fake.h
@@ -36,7 +36,6 @@ class XmaContextFake : public XmaContext {
   bool Work() override;
 
   void Enable() override;
-  bool Block(bool poll) override;
   void Clear() override;
   void Disable() override;
   void Release() override;
diff --git a/src/xenia/apu/xma_context_master.cc b/src/xenia/apu/xma_context_master.cc
index 34c73b4e3..0cf57c339 100644
--- a/src/xenia/apu/xma_context_master.cc
+++ b/src/xenia/apu/xma_context_master.cc
@@ -122,17 +122,6 @@ void XmaContextMaster::Enable() {
   set_is_enabled(true);
 }
 
-bool XmaContextMaster::Block(bool poll) {
-  if (!lock_.try_lock()) {
-    if (poll) {
-      return false;
-    }
-    lock_.lock();
-  }
-  lock_.unlock();
-  return true;
-}
-
 void XmaContextMaster::Clear() {
   std::lock_guard<xe_mutex> lock(lock_);
   XELOGAPU("XmaContext: reset context {}", id());
diff --git a/src/xenia/apu/xma_context_master.h b/src/xenia/apu/xma_context_master.h
index b1b5724da..e846751bd 100644
--- a/src/xenia/apu/xma_context_master.h
+++ b/src/xenia/apu/xma_context_master.h
@@ -38,7 +38,6 @@ class XmaContextMaster : public XmaContext {
   bool Work();
 
   void Enable();
-  bool Block(bool poll);
   void Clear();
   void Disable();
   void Release();
diff --git a/src/xenia/apu/xma_context_new.cc b/src/xenia/apu/xma_context_new.cc
index a085211db..253206bff 100644
--- a/src/xenia/apu/xma_context_new.cc
+++ b/src/xenia/apu/xma_context_new.cc
@@ -208,17 +208,6 @@ bool XmaContextNew::Work() {
 
 void XmaContextNew::Enable() { set_is_enabled(true); }
 
-bool XmaContextNew::Block(bool poll) {
-  if (!lock_.try_lock()) {
-    if (poll) {
-      return false;
-    }
-    lock_.lock();
-  }
-  lock_.unlock();
-  return true;
-}
-
 void XmaContextNew::Clear() {
   std::lock_guard<xe_mutex> lock(lock_);
 
diff --git a/src/xenia/apu/xma_context_new.h b/src/xenia/apu/xma_context_new.h
index 0b395888a..0f83f68b6 100644
--- a/src/xenia/apu/xma_context_new.h
+++ b/src/xenia/apu/xma_context_new.h
@@ -55,7 +55,6 @@ class XmaContextNew : public XmaContext {
   bool Work();
 
   void Enable();
-  bool Block(bool poll);
   void Clear();
   void Disable();
   void Release();
diff --git a/src/xenia/apu/xma_context_old.cc b/src/xenia/apu/xma_context_old.cc
index 2c1218458..e940810ea 100644
--- a/src/xenia/apu/xma_context_old.cc
+++ b/src/xenia/apu/xma_context_old.cc
@@ -123,17 +123,6 @@ void XmaContextOld::Enable() {
   set_is_enabled(true);
 }
 
-bool XmaContextOld::Block(bool poll) {
-  if (!lock_.try_lock()) {
-    if (poll) {
-      return false;
-    }
-    lock_.lock();
-  }
-  lock_.unlock();
-  return true;
-}
-
 void XmaContextOld::Clear() {
   std::lock_guard<xe_mutex> lock(lock_);
   XELOGAPU("XmaContext: reset context {}", id());
diff --git a/src/xenia/apu/xma_context_old.h b/src/xenia/apu/xma_context_old.h
index 736b961a0..a16c8ada6 100644
--- a/src/xenia/apu/xma_context_old.h
+++ b/src/xenia/apu/xma_context_old.h
@@ -38,7 +38,6 @@ class XmaContextOld : public XmaContext {
   bool Work();
 
   void Enable();
-  bool Block(bool poll);
   void Clear();
   void Disable();
   void Release();