diff --git a/src/palace.pyx b/src/palace.pyx
index 8a3e18c..a95b93d 100644
--- a/src/palace.pyx
+++ b/src/palace.pyx
@@ -1444,7 +1444,7 @@ cdef class Source:
     @property
     def position(self) -> Vector3:
         """3D position of the source."""
-        return from_vector3(self.impl.get_position())
+        return tuple(from_vector3(self.impl.get_position()))
 
     @position.setter
     def position(self, value: Vector3) -> None:
@@ -1458,7 +1458,7 @@ cdef class Source:
         position, and instead just alters the pitch as determined
         by the doppler effect.
         """
-        return from_vector3(self.impl.get_velocity())
+        return tuple(from_vector3(self.impl.get_velocity()))
 
     @velocity.setter
     def velocity(self, value: Vector3) -> None:
@@ -1481,7 +1481,7 @@ cdef class Source:
         comes from, this also affects the facing direction.
         """
         cdef pair[alure.Vector3, alure.Vector3] o = self.impl.get_orientation()
-        return from_vector3(o.first), from_vector3(o.second)
+        return tuple(from_vector3(o.first)), tuple(from_vector3(o.second))
 
     @orientation.setter
     def orientation(self, value: Tuple[Vector3, Vector3]) -> None:
@@ -2234,7 +2234,7 @@ cdef class ReverbEffect(BaseEffect):
     @property
     def reflections_pan(self) -> Vector3:
         """Reflections as 3D vector of magnitude between 0 and 1."""
-        return self.properties.reflections_pan
+        return tuple(self.properties.reflections_pan)
 
     @reflections_pan.setter
     def reflections_pan(self, value: Vector3) -> None:
@@ -2277,7 +2277,7 @@ cdef class ReverbEffect(BaseEffect):
     @property
     def late_reverb_pan(self) -> Vector3:
         """Late reverb as 3D vector of magnitude between 0 and 1."""
-        return self.properties.late_reverb_pan
+        return tuple(self.properties.late_reverb_pan)
 
     @late_reverb_pan.setter
     def late_reverb_pan(self, value: Vector3) -> None:
diff --git a/tests/unit/fmath.py b/tests/unit/fmath.py
index 5760d29..3945639 100644
--- a/tests/unit/fmath.py
+++ b/tests/unit/fmath.py
@@ -22,7 +22,7 @@ for single-precision floating-point numbers.
 __all__ = ['FLT_MAX', 'allclose', 'isclose']
 
 from math import isclose as _isclose
-from typing import Sequence
+from typing import Any, Callable, Sequence
 
 FLT_EPSILON: float = 2.0 ** -23
 FLT_MAX: float = 2.0**128 - 2.0**104
@@ -42,7 +42,8 @@ def isclose(a: float, b: float) -> bool:
     return _isclose(a, b, rel_tol=FLT_EPSILON)
 
 
-def allclose(a: Sequence[float], b: Sequence[float]) -> bool:
+def allclose(a: Sequence[float], b: Sequence[float],
+             close: Callable[[Any, Any], bool] = isclose) -> bool:
     """Determine whether two sequences of single-precision
     floating-point numbers are close in value.
 
@@ -53,4 +54,4 @@ def allclose(a: Sequence[float], b: Sequence[float]) -> bool:
     That is, NaN is not close to anything, even itself.
     inf and -inf are only close to themselves.
     """
-    return all(map(isclose, a, b))
+    return type(a) is type(b) and all(map(close, a, b))
diff --git a/tests/unit/test_source.py b/tests/unit/test_source.py
index 70f1c2b..4c2c087 100644
--- a/tests/unit/test_source.py
+++ b/tests/unit/test_source.py
@@ -200,9 +200,9 @@ def test_velocity(context):
 def test_orientation(context):
     """Test read-write property orientation."""
     with Source(context) as source:
-        assert all(map(allclose, source.orientation, ((0, 0, -1), (0, 1, 0))))
+        assert allclose(source.orientation, ((0, 0, -1), (0, 1, 0)), allclose)
         source.orientation = (1, 1, -2), (3, -5, 8)
-        assert all(map(allclose, source.orientation, ((1, 1, -2), (3, -5, 8))))
+        assert allclose(source.orientation, ((1, 1, -2), (3, -5, 8)), allclose)
 
 
 def test_cone_angles(context):