diff --git a/libs/ardour/internal_send.cc b/libs/ardour/internal_send.cc
index 2f2731b714..6ae57d10cd 100644
--- a/libs/ardour/internal_send.cc
+++ b/libs/ardour/internal_send.cc
@@ -162,9 +162,9 @@ InternalSend::use_target (boost::shared_ptr<Route> sendto, bool update_name)
 	ensure_mixbufs ();
 	mixbufs.set_count (_send_to->internal_return ()->input_streams ());
 
-	_meter->configure_io (ChanCount (DataType::AUDIO, pan_outs ()), ChanCount (DataType::AUDIO, pan_outs ()));
+	_meter->configure_io (_send_to->internal_return ()->input_streams (), _send_to->internal_return ()->input_streams ());
 
-	_send_delay->configure_io (ChanCount (DataType::AUDIO, pan_outs ()), ChanCount (DataType::AUDIO, pan_outs ()));
+	_send_delay->configure_io (_send_to->internal_return ()->input_streams (), _send_to->internal_return ()->input_streams ());
 
 	reset_panner ();
 
diff --git a/libs/ardour/send.cc b/libs/ardour/send.cc
index d20b519d65..696647153e 100644
--- a/libs/ardour/send.cc
+++ b/libs/ardour/send.cc
@@ -466,6 +466,9 @@ Send::can_support_io_configuration (const ChanCount& in, ChanCount& out)
 bool
 Send::configure_io (ChanCount in, ChanCount out)
 {
+	ChanCount send_count = in;
+	send_count.set(DataType::AUDIO, pan_outs());
+
 	if (!_amp->configure_io (in, out)) {
 		return false;
 	}
@@ -474,7 +477,7 @@ Send::configure_io (ChanCount in, ChanCount out)
 		return false;
 	}
 
-	if (!_meter->configure_io (ChanCount (DataType::AUDIO, pan_outs()), ChanCount (DataType::AUDIO, pan_outs()))) {
+	if (!_meter->configure_io (send_count, send_count)) {
 		return false;
 	}
 
@@ -482,7 +485,7 @@ Send::configure_io (ChanCount in, ChanCount out)
 		return false;
 	}
 
-	if (!_send_delay->configure_io (ChanCount (DataType::AUDIO, pan_outs()), ChanCount (DataType::AUDIO, pan_outs()))) {
+	if (!_send_delay->configure_io (send_count, send_count)) {
 		return false;
 	}