diff --git a/src/emu/sound/bsmt2000.c b/src/emu/sound/bsmt2000.c
index b453f9c58f5..114461beece 100644
--- a/src/emu/sound/bsmt2000.c
+++ b/src/emu/sound/bsmt2000.c
@@ -114,7 +114,7 @@ bsmt2000_device::bsmt2000_device(const machine_config &mconfig, const char *tag,
 	: device_t(mconfig, BSMT2000, "BSMT2000", "bsmt2000", tag, owner, clock),
 	  device_sound_interface(mconfig, *this),
 	  device_memory_interface(mconfig, *this),
-	  m_space_config("samples", ENDIANNESS_LITTLE, 8, 32, 0, NULL, *ADDRESS_MAP_NAME(bsmt2000)),
+	  m_space_config("samples", ENDIANNESS_LITTLE, 8, 32, 0, NULL),
 	  m_ready_callback(NULL),
 	  m_stream(NULL),
 	  m_direct(NULL),
@@ -128,6 +128,7 @@ bsmt2000_device::bsmt2000_device(const machine_config &mconfig, const char *tag,
 	  m_write_pending(false)
 {
 	m_shortname = "bsmt2000";
+	m_address_map[0] = *ADDRESS_MAP_NAME(bsmt2000);
 }
 
 
diff --git a/src/mame/audio/decobsmt.c b/src/mame/audio/decobsmt.c
index fbfbccacfbf..5f5eccf4765 100644
--- a/src/mame/audio/decobsmt.c
+++ b/src/mame/audio/decobsmt.c
@@ -14,12 +14,6 @@
 #define	M6809_TAG	"soundcpu"
 #define BSMT_TAG	"bsmt"
 
-/*
-    Overriding the child device's memory map fails when done from a parent device rather than the base driver.
-    Uncomment this out to observe.
-*/
-//#define USE_OVERRIDE_MAP
-
 static ADDRESS_MAP_START( decobsmt_map, AS_PROGRAM, 8, decobsmt_device )
 	AM_RANGE(0x0000, 0x1fff) AM_RAM
 	AM_RANGE(0x2000, 0x2001) AM_WRITE(bsmt_reset_w)
@@ -30,15 +24,9 @@ static ADDRESS_MAP_START( decobsmt_map, AS_PROGRAM, 8, decobsmt_device )
 	AM_RANGE(0x2000, 0xffff) AM_ROM AM_REGION(":soundcpu", 0x2000)
 ADDRESS_MAP_END
 
-#ifdef USE_OVERRIDE_MAP
 static ADDRESS_MAP_START( bsmt_map, AS_0, 8, decobsmt_device )
 	AM_RANGE(0x000000, 0xffffff) AM_ROM AM_REGION(":bsmt", 0)
 ADDRESS_MAP_END
-#endif
-
-ROM_START( decobsmt )
-	ROM_REGION(0x1000000, BSMT_TAG, ROMREGION_ERASE00)
-ROM_END
 
 static INTERRUPT_GEN( decobsmt_firq_interrupt )
 {
@@ -57,10 +45,8 @@ MACHINE_CONFIG_FRAGMENT( decobsmt )
 	MCFG_CPU_PERIODIC_INT(decobsmt_firq_interrupt, 489) /* Fixed FIRQ of 489Hz as measured on real (pinball) machine */
 
     MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
-	MCFG_BSMT2000_ADD("bsmt", 24000000)
-#ifdef USE_OVERRIDE_MAP
+	MCFG_BSMT2000_ADD(BSMT_TAG, 24000000)
 	MCFG_DEVICE_ADDRESS_MAP(AS_0, bsmt_map)
-#endif
 	MCFG_BSMT2000_READY_CALLBACK(bsmt_ready_callback)
 	MCFG_SOUND_ROUTE(0, "lspeaker", 2.0)
 	MCFG_SOUND_ROUTE(1, "rspeaker", 2.0)
@@ -83,11 +69,6 @@ machine_config_constructor decobsmt_device::device_mconfig_additions() const
 	return MACHINE_CONFIG_NAME( decobsmt );
 }
 
-const rom_entry *decobsmt_device::device_rom_region() const
-{
-	return ROM_NAME( decobsmt );
-}
-
 //**************************************************************************
 //  LIVE DEVICE
 //**************************************************************************
@@ -101,7 +82,6 @@ decobsmt_device::decobsmt_device(const machine_config &mconfig, const char *tag,
 	m_ourcpu(*this, M6809_TAG),
 	m_bsmt(*this, BSMT_TAG)
 {
-	m_shortname = "decobsmt";
 }
 
 //-------------------------------------------------
@@ -110,13 +90,6 @@ decobsmt_device::decobsmt_device(const machine_config &mconfig, const char *tag,
 
 void decobsmt_device::device_start()
 {
-#ifndef USE_OVERRIDE_MAP
-    UINT8 *romsrc = machine().region("bsmt")->base();
-	astring tempstring;
-    UINT8 *romdst = machine().region(subtag(tempstring, "bsmt"))->base(); 
-
-    memcpy(romdst, romsrc, 0x1000000);
-#endif
 }
 
 //-------------------------------------------------
diff --git a/src/mame/audio/decobsmt.h b/src/mame/audio/decobsmt.h
index 691bc622abd..ab6aadd2947 100644
--- a/src/mame/audio/decobsmt.h
+++ b/src/mame/audio/decobsmt.h
@@ -24,7 +24,6 @@ public:
 
 		// optional information overrides
 		virtual machine_config_constructor device_mconfig_additions() const;
-		virtual const rom_entry *device_rom_region() const;
 
         DECLARE_WRITE8_MEMBER(bsmt_reset_w);
         DECLARE_READ8_MEMBER(bsmt_status_r);
diff --git a/src/mame/mame_dev.lst b/src/mame/mame_dev.lst
index f5bd6f14d4a..80aad921547 100644
--- a/src/mame/mame_dev.lst
+++ b/src/mame/mame_dev.lst
@@ -39,7 +39,6 @@
 ******************************************************************************/
 
 BSMT2000
-DECOBSMT
 H63484
 NAMCO_50XX
 NAMCO_51XX