DSP Time Alignment Calculator
Calculate precise delay values for your DSP to align all speakers to a single listening position. Measure the distance from each speaker to your ears for optimal staging and imaging.
Speed of sound varies with cabin temperature. 20°C is the standard reference.
Auto-fills subwoofer distance from cabin dimension
Speaker Distances
Measure from each speaker to your primary listening position (your ears in the driver's seat).
Delay Values
The Math
Pro Tips
- •Measure to the acoustic center of each driver
- •Use a laser measure for accuracy
- •The subwoofer is usually the furthest speaker
- •Fine-tune by ear after setting calculated values
Acoustic Center vs. Physical Distance
The acoustic center of a driver sits behind the mounting baffle — typically at the voice coil, not the cone surface. For tweeters this offset is minimal (2-5mm), but for midbass drivers it can be 15-30mm. After entering your physical measurements, fine-tune by ear using test tones and small 0.1ms adjustments. The calculated values are your starting point, not your final answer.
Why Time Alignment Matters
Imaging
When all speakers arrive at your ears simultaneously, the soundstage becomes centered and focused. Vocals appear directly in front of you instead of pulling to one side.
Phase Coherence
Misaligned speakers cause phase cancellation at crossover frequencies. Proper delays ensure smooth transitions between drivers.
Impact
When midbass and subwoofer are time-aligned, kick drums and bass notes hit with more punch and definition.