diff --git a/devices/ioctrl/heathrow.cpp b/devices/ioctrl/heathrow.cpp
index 1ed3569..ee5c1b8 100644
--- a/devices/ioctrl/heathrow.cpp
+++ b/devices/ioctrl/heathrow.cpp
@@ -24,12 +24,13 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #include <devices/common/viacuda.h>
 #include <devices/ioctrl/macio.h>
 #include <devices/sound/awacs.h>
+#include <loguru.hpp>
 #include <machines/machinebase.h>
 
 #include <cinttypes>
 #include <functional>
 #include <iostream>
-#include <loguru.hpp>
+#include <memory>
 
 /** Heathrow Mac I/O device emulation.
 
@@ -39,35 +40,23 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 using namespace std;
 
 HeathrowIC::HeathrowIC() : PCIDevice("mac-io/heathrow") {
-    this->nvram = new NVram();
+    this->nvram = std::unique_ptr<NVram> (new NVram());
 
-    this->viacuda = new ViaCuda();
-    gMachineObj->add_subdevice("ViaCuda", this->viacuda);
+    this->viacuda = std::unique_ptr<ViaCuda> (new ViaCuda());
+    gMachineObj->add_subdevice("ViaCuda", this->viacuda.get());
 
     // initialize sound chip and its DMA output channel, then wire them together
-    this->screamer    = new AwacsScreamer();
-    this->snd_out_dma = new DMAChannel();
-    this->screamer->set_dma_out(this->snd_out_dma);
+    this->screamer    = std::unique_ptr<AwacsScreamer> (new AwacsScreamer());
+    this->snd_out_dma = std::unique_ptr<DMAChannel> (new DMAChannel());
+    this->screamer->set_dma_out(this->snd_out_dma.get());
     this->snd_out_dma->set_callbacks(
-        std::bind(&AwacsScreamer::dma_start, this->screamer),
-        std::bind(&AwacsScreamer::dma_end, this->screamer)
+        std::bind(&AwacsScreamer::dma_start, this->screamer.get()),
+        std::bind(&AwacsScreamer::dma_end, this->screamer.get())
     );
 
-    this->mesh = new MESHController(HeathrowMESHID);
+    this->mesh = std::unique_ptr<MESHController> (new MESHController(HeathrowMESHID));
 }
 
-HeathrowIC::~HeathrowIC() {
-    if (this->nvram)
-        delete (this->nvram);
-
-    if (this->viacuda)
-        delete (this->viacuda);
-
-    if (this->mesh)
-        delete (this->mesh);
-}
-
-
 uint32_t HeathrowIC::pci_cfg_read(uint32_t reg_offs, uint32_t size) {
     return this->pci_cfg_hdr[reg_offs & 0xFF];
 }
diff --git a/devices/ioctrl/macio.h b/devices/ioctrl/macio.h
index 9e371fd..1f8656b 100644
--- a/devices/ioctrl/macio.h
+++ b/devices/ioctrl/macio.h
@@ -63,6 +63,7 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #include <devices/sound/awacs.h>
 
 #include <cinttypes>
+#include <memory>
 
 /**
     Heathrow ASIC emulation
@@ -91,7 +92,7 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 class HeathrowIC : public PCIDevice {
 public:
     HeathrowIC();
-    ~HeathrowIC();
+    ~HeathrowIC() = default;
 
     bool supports_type(HWCompType type) {
         return type == HWCompType::MMIO_DEV;
@@ -148,12 +149,12 @@ private:
     uint32_t aux_ctrl    = 0;    // aux features control register
 
     /* device cells */
-    ViaCuda* viacuda;     // VIA cell with Cuda MCU attached to it
-    NVram* nvram;         // NVRAM cell
-    AwacsScreamer  *screamer; // Screamer audio codec instance
-    MESHController *mesh; // MESH SCSI cell instance
+    std::unique_ptr<ViaCuda>        viacuda; // VIA cell with Cuda MCU attached to it
+    std::unique_ptr<NVram>          nvram;   // NVRAM cell
+    std::unique_ptr<AwacsScreamer>  screamer; // Screamer audio codec instance
+    std::unique_ptr<MESHController> mesh; // MESH SCSI cell instance
 
-    DMAChannel* snd_out_dma;
+    std::unique_ptr<DMAChannel>     snd_out_dma;
 };
 
 #endif /* MACIO_H */
diff --git a/devices/sound/awacs.h b/devices/sound/awacs.h
index 327b7fa..e5e1d0b 100644
--- a/devices/sound/awacs.h
+++ b/devices/sound/awacs.h
@@ -149,7 +149,7 @@ private:
 class AwacsScreamer : public AwacsBase {
 public:
     AwacsScreamer();
-    ~AwacsScreamer();
+    ~AwacsScreamer() = default;
 
     uint32_t    snd_ctrl_read(uint32_t offset, int size);
     void        snd_ctrl_write(uint32_t offset, uint32_t value, int size);