diff --git a/pulse_lib/examples/configuration/small.py b/pulse_lib/examples/configuration/small.py
index d0061afee5f7fee8f8a80376f64dc674757b858f..40ee6637dad777f3e9b711226224c4fecd1b53f5 100644
--- a/pulse_lib/examples/configuration/small.py
+++ b/pulse_lib/examples/configuration/small.py
@@ -1,6 +1,4 @@
 from pulse_lib.base_pulse import pulselib
-from pulse_lib.virtual_channel_constructors import virtual_gates_constructor
-import numpy as np
 
 _backend = 'Qblox'
 #_backend = 'Keysight'
diff --git a/pulse_lib/examples/configuration/small_iq.py b/pulse_lib/examples/configuration/small_iq.py
index 3f71443de59f4b13adaa70984b1c8f919a01283d..f031bed1178d2cfdd61944bd8b80c4ee05822101 100644
--- a/pulse_lib/examples/configuration/small_iq.py
+++ b/pulse_lib/examples/configuration/small_iq.py
@@ -1,10 +1,9 @@
 from pulse_lib.base_pulse import pulselib
-from pulse_lib.virtual_channel_constructors import virtual_gates_constructor, IQ_channel_constructor
-import numpy as np
+from pulse_lib.virtual_channel_constructors import IQ_channel_constructor
 
-_backend = 'Qblox'
+#_backend = 'Qblox'
 #_backend = 'Keysight'
-#_backend = 'Keysight_QS'
+_backend = 'Keysight_QS'
 
 _ch_offset = 0