Soundstage Depth and Phantom Center Calculator
What is it for? Evaluates stereo soundstage width, phantom center channel stability, and listening triangle.
In a stereo system, when vocals are heard suspended in the air between the speakers, this is called a phantom center. The angle calculated by this tool determines how stable the phantom center will be and how wide the soundstage will be perceived.
Your Measurements
Angle Scale — Where You Stand
Soundstage Depth — Front Wall Effect
Honest note: The half angle is a geometric quantity that can be calculated exactly from speaker opening and listening distance. However, "soundstage depth" and "width" are perceptual qualities; they cannot be measured with a single number. This tool provides the measurable parameters that influence these perceptions (angle, SBIR frequency, reflection delay) — not the perception itself.
To see in detail how your front wall distance affects bass response:
SBIR Simulator →
If you want to set up your stereo placement from scratch:
Golden Ratio Speaker Placement →
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