diff --git a/Cargo.toml b/Cargo.toml
index 4935617..53cab2a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,6 @@ cpal = "0.8"
 hound = { version = "3.3.1", optional = true }
 lazy_static = "1.0.0"
 lewton = { version = "0.9", optional = true }
-nalgebra = "0.18"
 minimp3 = { version = "0.3.2", optional = true }
 
 [features]
diff --git a/src/lib.rs b/src/lib.rs
index 118072b..de20588 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -88,7 +88,6 @@ extern crate claxon;
 extern crate cpal;
 #[cfg(feature = "wav")]
 extern crate hound;
-extern crate nalgebra;
 #[macro_use]
 extern crate lazy_static;
 #[cfg(feature = "vorbis")]
diff --git a/src/source/spatial.rs b/src/source/spatial.rs
index 3faa700..ff7f7d3 100644
--- a/src/source/spatial.rs
+++ b/src/source/spatial.rs
@@ -1,4 +1,3 @@
-use nalgebra::Point3;
 use source::ChannelVolume;
 use std::fmt::Debug;
 use std::time::Duration;
@@ -16,6 +15,13 @@ where
     input: ChannelVolume<I>,
 }
 
+fn dist(a: [f32; 3], b: [f32; 3]) -> f32 {
+    a.iter().zip(b.iter())
+        .map(|(a, b)| (a - b) * (a - b))
+        .sum::<f32>()
+        .sqrt()
+}
+
 impl<I> Spatial<I>
 where
     I: Source,
@@ -39,12 +45,9 @@ where
     pub fn set_positions(
         &mut self, emitter_pos: [f32; 3], left_ear: [f32; 3], right_ear: [f32; 3],
     ) {
-        let emitter_position = Point3::from(emitter_pos);
-        let left_ear = Point3::from(left_ear);
-        let right_ear = Point3::from(right_ear);
-        let left_distance = (left_ear - emitter_position).magnitude();
-        let right_distance = (right_ear - emitter_position).magnitude();
-        let max_diff = (left_ear - right_ear).magnitude();
+        let left_distance = dist(left_ear, emitter_pos);
+        let right_distance = dist(right_ear, emitter_pos);
+        let max_diff = dist(left_ear, right_ear);
         let left_diff_modifier = ((left_distance - right_distance) / max_diff + 1.0) / 4.0 + 0.5;
         let right_diff_modifier = ((right_distance - left_distance) / max_diff + 1.0) / 4.0 + 0.5;
         let left_dist_modifier = (1.0 / left_distance.powi(2)).min(1.0);