diff --git a/configure b/configure
index fc0dcab..4b1facf 100755
--- a/configure
+++ b/configure
@@ -24,6 +24,7 @@ Usage: configure [options]
 --disable-umidi			disable usb-midi backend
 --with-libbsd			use the libbsd rather than bsd-compat/*
 --without-libbsd		don't use libbsd
+--default-dev=DEV		set default device [$dev]
 END
 }
 
@@ -49,6 +50,7 @@ unset includedir			# path where to install header file
 unset libdir				# path where to install library
 unset defs				# no extra #defines
 unset ldadd				# no extra libraries (-l options)
+unset dev
 
 #
 # guess OS-specific parameters
@@ -170,6 +172,9 @@ for i; do
 	--without-libbsd)
 		libbsd=no
 		shift;;
+	--default-dev=*)
+		dev="${i#--default-dev=}"
+		shift;;
 	CC=*|CFLAGS=*|LDFLAGS=*)
 		vars="$vars$i$nl"
 		shift;;
@@ -241,6 +246,11 @@ if [ $libbsd = yes ]; then
 	ldadd="$ldadd -lbsd"
 fi
 
+if [ -n "$dev" ]; then
+	defs="$defs -DDEFAULT_DEV='\"$dev\"'"
+fi
+
+
 for f in Makefile aucat/Makefile midicat/Makefile sndiod/Makefile \
 libsndio/Makefile \
 sndioctl/Makefile \
@@ -262,6 +272,7 @@ do
 	-e "s:@vars@:${vars}:" \
 	-e "s:@precision@:$precision:" \
 	-e "s:@user@:$user:" \
+	-e "s:@devs@:$devs:" \
 	< $f.in > $f
 done
 
diff --git a/libsndio/sio.c b/libsndio/sio.c
index 4b25930..0195f70 100644
--- a/libsndio/sio.c
+++ b/libsndio/sio.c
@@ -62,7 +62,7 @@ sio_open(const char *str, unsigned int mode, int nbio)
 		if (hdl != NULL)
 			return hdl;
 #if defined(USE_SUN)
-		return _sio_sun_open("rsnd/default", mode, nbio);
+		return _sio_sun_open("rsnd/0", mode, nbio);
 #elif defined(USE_OSS)
 		return _sio_oss_open("rsnd/default", mode, nbio);
 #elif defined(USE_ALSA)
diff --git a/libsndio/sio_sun.c b/libsndio/sio_sun.c
index f6040b0..bc4dab8 100644
--- a/libsndio/sio_sun.c
+++ b/libsndio/sio_sun.c
@@ -290,14 +290,10 @@ sio_sun_getfd(const char *str, unsigned int mode, int nbio)
 		DPRINTF("sio_sun_getfd: %s: '/' expected\n", str);
 		return -1;
 	}
-	if (strcmp(p, "default") == 0) {
-		devnum = 0;
-	} else {
-		p = _sndio_parsenum(p, &devnum, 255);
-		if (p == NULL || *p != '\0') {
-			DPRINTF("sio_sun_getfd: %s: number expected after '/'\n", str);
-			return -1;
-		}
+	p = _sndio_parsenum(p, &devnum, 255);
+	if (p == NULL || *p != '\0') {
+		DPRINTF("sio_sun_getfd: %s: number expected after '/'\n", str);
+		return -1;
 	}
 	snprintf(path, sizeof(path), DEVPATH_PREFIX "%u", devnum);
 	if (mode == (SIO_PLAY | SIO_REC))
diff --git a/libsndio/sioctl.c b/libsndio/sioctl.c
index e558404..2ecc1e8 100644
--- a/libsndio/sioctl.c
+++ b/libsndio/sioctl.c
@@ -45,7 +45,7 @@ sioctl_open(const char *str, unsigned int mode, int nbio)
 		if (hdl != NULL)
 			return hdl;
 #if defined(USE_SUN_MIXER)
-		return _sioctl_sun_open("rsnd/default", mode, nbio);
+		return _sioctl_sun_open("rsnd/0", mode, nbio);
 #else
 		return NULL;
 #endif
diff --git a/libsndio/sioctl_sun.c b/libsndio/sioctl_sun.c
index 88a80c5..45267d7 100644
--- a/libsndio/sioctl_sun.c
+++ b/libsndio/sioctl_sun.c
@@ -84,14 +84,24 @@ static int
 initmute(struct sioctl_sun_hdl *hdl, struct mixer_devinfo *info)
 {
 	struct mixer_devinfo mi;
+	char name[MAX_AUDIO_DEV_LEN];
 
-	mi.index = info->next;
 	for (mi.index = info->next; mi.index != -1; mi.index = mi.next) {
 		if (ioctl(hdl->fd, AUDIO_MIXER_DEVINFO, &mi) < 0)
 			break;
 		if (strcmp(mi.label.name, AudioNmute) == 0)
 			return mi.index;
 	}
+
+	/* try "_mute" suffix */
+	snprintf(name, sizeof(name), "%s_mute", info->label.name);
+	for (mi.index = 0; ; mi.index++) {
+		if (ioctl(hdl->fd, AUDIO_MIXER_DEVINFO, &mi) < 0)
+			break;
+		if (info->mixer_class == mi.mixer_class &&
+		    strcmp(mi.label.name, name) == 0)
+			return mi.index;
+	}
 	return -1;
 }
 
diff --git a/sndioctl/sndioctl.1 b/sndioctl/sndioctl.1
index f8645ba..68c82ce 100644
--- a/sndioctl/sndioctl.1
+++ b/sndioctl/sndioctl.1
@@ -100,20 +100,22 @@ If
 .Qq \&!
 is used instead of a number, then the switch is toggled.
 .Sh EXAMPLES
-The following will set all
-.Ar output
-channels
-.Ar level
-control to zero:
+Increase the
+.Cm level
+control affecting all
+.Cm output
+channels by 10% of the maximum:
 .Pp
-.Dl $ sndioctl output.level=0
+.Dl $ sndioctl output.level=+0.1
 .Pp
-The following set all
-.Ar output
-channels
-.Ar mute
+Mute all output channels:
+.Pp
+.Dl $ sndioctl output.mute=1
+.Pp
+Toggle the above
+.Cm mute
 control:
 .Pp
-.Dl $ sndioctl output.mute=0
+.Dl $ sndioctl output.mute=!
 .Sh SEE ALSO
 .Xr sioctl_open 3
diff --git a/sndioctl/sndioctl.c b/sndioctl/sndioctl.c
index a800c90..eb961bf 100644
--- a/sndioctl/sndioctl.c
+++ b/sndioctl/sndioctl.c
@@ -374,7 +374,14 @@ print_val(struct info *p, int mono)
 	switch (p->desc.type) {
 	case SIOCTL_NUM:
 	case SIOCTL_SW:
-		printf("%.2g", p->curval / (float)p->desc.maxval);
+		if (p->desc.maxval == 1)
+			printf("%d", p->curval);
+		else
+			/*
+			 * For now, maxval is always 127 or 255,
+			 * so three decimals is always ideal.
+			 */
+			printf("%.3f", p->curval / (float)p->desc.maxval);
 		break;
 	case SIOCTL_VEC:
 	case SIOCTL_LIST:
@@ -389,7 +396,11 @@ print_val(struct info *p, int mono)
 			if (more)
 				printf(",");
 			print_node(&e->desc.node1, mono);
-			printf(":%.2g", e->curval / (float)e->desc.maxval);
+			if (e->desc.maxval == 1)
+				printf(":%d", e->curval);
+			else
+				printf(":%.3f",
+				    e->curval / (float)e->desc.maxval);
 			more = 1;
 		}
 	}
diff --git a/sndiod/sndiod.8 b/sndiod/sndiod.8
index 81f868d..40b9ef2 100644
--- a/sndiod/sndiod.8
+++ b/sndiod/sndiod.8
@@ -208,6 +208,14 @@ Sub-devices
 that are applied after will be attached to this device.
 Device mode and parameters are determined from sub-devices
 attached to it.
+If no
+.Fl f
+option is used,
+.Nm
+will use
+.Pa rsnd/0 , rsnd/1 ,
+.No ... ,
+.Pa rsnd/3 .
 .It Fl j Ar flag
 Control whether program channels are joined or expanded if
 the number of channels requested by a program is not equal
diff --git a/sndiod/sndiod.c b/sndiod/sndiod.c
index cacf8e3..f427be8 100644
--- a/sndiod/sndiod.c
+++ b/sndiod/sndiod.c
@@ -78,13 +78,6 @@
 #define DEFAULT_BUFSZ	7680
 #endif
 
-/*
- * default device in server mode
- */
-#ifndef DEFAULT_DEV
-#define DEFAULT_DEV "rsnd/default"
-#endif
-
 void sigint(int);
 void sighup(int);
 void opt_ch(int *, int *);
@@ -111,6 +104,18 @@ char usagestr[] = "usage: sndiod [-d] [-a flag] [-b nframes] "
     "[-Q port] [-q port] [-r rate] [-s name] [-t mode] [-U unit]\n\t"
     "[-v volume] [-w flag] [-z nframes]\n";
 
+/*
+ * default audio devices
+ */
+static char *default_devs[] = {
+#ifdef DEFAULT_DEV
+	DEFAULT_DEV,
+#else
+	"rsnd/0", "rsnd/1", "rsnd/2", "rsnd/3",
+#endif
+	NULL
+};
+
 /*
  * default MIDI ports
  */
@@ -361,7 +366,7 @@ mkopt(char *path, struct dev *d,
 int
 main(int argc, char **argv)
 {
-	int c, i, background, unit;
+	int c, i, background, unit, devindex;
 	int pmin, pmax, rmin, rmax;
 	char base[SOCKPATH_MAX], path[SOCKPATH_MAX];
 	unsigned int mode, dup, mmc, vol;
@@ -399,6 +404,7 @@ main(int argc, char **argv)
 	aparams_init(&par);
 	mode = MODE_PLAY | MODE_REC;
 	tcpaddr_list = NULL;
+	devindex = 0;
 
 	while ((c = getopt(argc, argv,
 	    "a:b:c:C:de:F:f:j:L:m:Q:q:r:s:t:U:v:w:x:z:")) != -1) {
@@ -448,8 +454,8 @@ main(int argc, char **argv)
 			break;
 		case 's':
 			if ((d = dev_list) == NULL) {
-				d = mkdev(DEFAULT_DEV, &par, 0, bufsz, round,
-				    rate, hold, autovol);
+				d = mkdev(default_devs[devindex++], &par, 0,
+				    bufsz, round, rate, hold, autovol);
 			}
 			if (mkopt(optarg, d, pmin, pmax, rmin, rmax,
 				mode, vol, mmc, dup) == NULL)
@@ -482,6 +488,7 @@ main(int argc, char **argv)
 		case 'f':
 			mkdev(optarg, &par, 0, bufsz, round,
 			    rate, hold, autovol);
+			devindex = -1;
 			break;
 		case 'F':
 			if (dev_list == NULL)
@@ -503,8 +510,12 @@ main(int argc, char **argv)
 		for (i = 0; default_ports[i] != NULL; i++)
 			mkport(default_ports[i], 0);
 	}
-	if (dev_list == NULL)
-		mkdev(DEFAULT_DEV, &par, 0, bufsz, round, rate, hold, autovol);
+	if (devindex != -1) {
+		for (i = devindex; default_devs[i] != NULL; i++) {
+			mkdev(default_devs[i], &par, 0,
+			    bufsz, round, rate, 0, autovol);
+		}
+	}
 	for (d = dev_list; d != NULL; d = d->next) {
 		if (opt_byname(d, "default"))
 			continue;
diff --git a/sndiod/sock.c b/sndiod/sock.c
index 28c75b5..72a1ee5 100644
--- a/sndiod/sock.c
+++ b/sndiod/sock.c
@@ -151,7 +151,7 @@ sock_close(struct sock *f)
 	}
 #endif
 	if (f->pstate > SOCK_AUTH)
-		sock_sesrefs--;
+		sock_sesrefs -= f->sesrefs;
 	if (f->slot) {
 		slot_del(f->slot);
 		f->slot = NULL;
@@ -792,11 +792,12 @@ sock_auth(struct sock *f)
 	if (sock_sesrefs == 0) {
 		/* start a new session */
 		memcpy(sock_sescookie, p->cookie, AMSG_COOKIELEN);
+		f->sesrefs = 1;
 	} else if (memcmp(sock_sescookie, p->cookie, AMSG_COOKIELEN) != 0) {
 		/* another session is active, drop connection */
 		return 0;
 	}
-	sock_sesrefs++;
+	sock_sesrefs += f->sesrefs;
 	f->pstate = SOCK_HELLO;
 	return 1;
 }
diff --git a/sndiod/sock.h b/sndiod/sock.h
index 41f0916..9926890 100644
--- a/sndiod/sock.h
+++ b/sndiod/sock.h
@@ -64,6 +64,7 @@ struct sock {
 #define SOCK_CTLVAL	2		/* send value changes */
 	unsigned int ctlops;		/* bitmap of above */
 	int ctlsyncpending;		/* CTLSYNC waiting to be transmitted */
+	unsigned int sesrefs;		/* 1 if socket belongs to a session */
 };
 
 struct sock *sock_new(int fd);