So i'm wondering about the ebp rule introduced by mr.small An efficiency bandwidth product (ebp) calculator is a tool used in speaker design, acoustics, and audio engineering to determine whether a loudspeaker driver is best suited for a sealed or ported enclosure. This rule of thumb determines if a speaker is more suitable for a closed or vented design
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An ebp of more than 100 indicates that a speaker is best suited for vented enclosure and so on.
Ebp or efficiency bandwidth product is calculated by dividing fs (free air resonant frecuencies) by qs (total q of the driver)
The ebp figure is used in many enclosure design formulas to determine if a speaker is more suitable for a closed or vented design. A common rule of thumb indicates that for when ebp >100, the driver is perhaps best used in a vented enclosure (ported, aperiodic and transmission line), while ebp<50 indicates a sealed enclosure. If you don't know what qtc you need, start with a qtc of.707 Ebp is the efficiency bandwidth product
It is used as a guide to determine whether a speaker will work better in a ported or sealed enclosure It is defined as fs/qes N o is the reference efficiency of a driver. Enter value, select unit and click on calculate
This simple calculator will tell you if your driver is better suited for a sealed or a ported speaker box enclosure
This is the formula that is used Efficiency bandwidth product (ebp) = free air resonance (fs) / driver electrical q (qes) It is useful in determining if a driver is suited for a sealed or vented box and is also used to determine suitability for horn loading.