[gnome-control-center] sound: fix subwoofer slider

[Robert Ancell <rancell src gnome org>]

commit 9225cd9364e3826978da1c399f2c3d68268f081e
Author: Arne <arnesacnussem gmail com>
Date:   Tue Sep 22 01:55:11 2020 +0000

    sound: fix subwoofer slider

 panels/sound/cc-subwoofer-slider.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/panels/sound/cc-subwoofer-slider.c b/panels/sound/cc-subwoofer-slider.c
index ac084cd5f..f209ec2e1 100644
--- a/panels/sound/cc-subwoofer-slider.c
+++ b/panels/sound/cc-subwoofer-slider.c
@@ -59,7 +59,7 @@ volume_changed_cb (CcSubwooferSlider *self)
 
   volumes = gvc_channel_map_get_volume (self->channel_map);
   g_signal_handlers_block_by_func (self->adjustment, volume_changed_cb, self);
-  gtk_adjustment_set_value (self->adjustment, volumes[BALANCE]);
+  gtk_adjustment_set_value (self->adjustment, volumes[LFE]);
   g_signal_handlers_unblock_by_func (self->adjustment, volume_changed_cb, self);
 }