diff --git a/src/Makefile.mingw b/src/Makefile.mingw
index e716ff206..5593f9651 100644
--- a/src/Makefile.mingw
+++ b/src/Makefile.mingw
@@ -45,6 +45,9 @@ endif
 ifndef X64
 X64	= n
 endif
+ifndef RELEASE
+RELEASE	= n
+endif
 
 
 #########################################################################
diff --git a/src/SOUND/snd_sb.c b/src/SOUND/snd_sb.c
index 8f310d9af..f6e773fe8 100644
--- a/src/SOUND/snd_sb.c
+++ b/src/SOUND/snd_sb.c
@@ -81,8 +81,8 @@ static void sb_get_buffer_opl2(int32_t *buffer, int len, void *p)
         {
                 int32_t out_l, out_r;
                 
-                out_l = ((((sb->opl.buffer[c]     * mixer->fm_l) >> 16) * 47000) >> 16);
-                out_r = ((((sb->opl.buffer[c + 1] * mixer->fm_r) >> 16) * 47000) >> 16);
+                out_l = ((((sb->opl.buffer[c]     * mixer->fm_l) >> 16) * 55000) >> 16);
+                out_r = ((((sb->opl.buffer[c + 1] * mixer->fm_r) >> 16) * 55000) >> 16);
 
                 if (sb->mixer.filter)
                 {
@@ -132,8 +132,8 @@ static void sb_get_buffer_opl3(int32_t *buffer, int len, void *p)
         {
                 int32_t out_l, out_r;
                 
-                out_l = ((((sb->opl.buffer[c]     * mixer->fm_l) >> 16) * 47000) >> 16);
-                out_r = ((((sb->opl.buffer[c + 1] * mixer->fm_r) >> 16) * 47000) >> 16);
+                out_l = ((((sb->opl.buffer[c]     * mixer->fm_l) >> 16) * (opl3_type ? 47000 : 55000)) >> 16);
+                out_r = ((((sb->opl.buffer[c + 1] * mixer->fm_r) >> 16) * (opl3_type ? 47000 : 55000)) >> 16);
 
                 if (sb->mixer.filter)
                 {