Speaker Placement Calculator
Find optimal coordinates for your studio monitors and mixing chair to maximize acoustic accuracy.
Room length (L)m
Room width (W)m
Listener spot (38% rule)
1.90 m
from front wall
Speaker separation
1.71 m
center-to-center
Side wall spacing
1.15 m
from left/right walls
Listening chair at 1.90 m from the front wall (38% rule), speakers 1.71 m apart.
Preview only — open the 3D builder for full placement, treatment, and analysis.
What is the 38% rule?
Placing your listening chair at 38% of room length from the front wall avoids major room mode peaks and nulls. This spot gives the flattest low-frequency bass response in rectangular rooms.
Speaker boundary interference (SBIR)
SBIR happens when sound from the back of your speaker reflects off the front wall and cancels out forward sound. To minimize SBIR dips, place speakers either closer than 0.2 m (8 in) or farther than 1.0 m (3.3 ft) from the front wall.
Frequently asked questions
- What is the 38% rule in studio monitor placement?
- The 38% rule states that placing your primary listening position at 38% of the total room length measured from the front wall places the listener in the flattest low-frequency acoustic response area, avoiding major modal peaks and nulls.
- How far should studio monitors be placed from walls?
- To minimize Speaker Boundary Interference Response (SBIR), monitors should either be placed directly against the front wall (less than 8 inches / 20 cm) with boundary EQ compensation, or placed at least 3 feet (0.9 to 1.2 m) away from the front wall.