Since my Gradle is broken or something, I'll be relying on Travis until I get it fixed.

core/src/mindustry/world/blocks/defense/turrets/ChargeTurret.java

@@ -6,6 +6,7 @@ import arc.util.*;
 import mindustry.content.*;
 import mindustry.entities.*;
 import mindustry.entities.bullet.*;
+import mindustry.type.*;
 
 import static mindustry.Vars.*;
 
@@ -30,7 +31,7 @@ public class ChargeTurret extends PowerTurret{
 
             tr.trns(rotation, size * tilesize / 2f);
             chargeBeginEffect.at(x + tr.x, y + tr.y, rotation);
-            chargeSound.at(tile, Mathf.random(0.9f, 1.1f));
+            chargeSound.at(x + tr.x, y + tr.y, Mathf.random(0.8f, 1f));
             
             for(int i = 0; i < chargeEffects; i++){
                 Time.run(Mathf.random(chargeMaxDelay), () -> {