Mobile Electronics Certified Professional (MECP) Advanced Practice Test 2025 – Your All-in-One Guide to Exam Success!

A subwoofer with an EBP (Efficiency Bandwidth Product) of 110 suggests a preference for a vented (ported) enclosure. The EBP is calculated by dividing the resonance frequency (Fs) by the total Q factor (Qts), and it helps determine the ideal type of enclosure for a specific subwoofer.

In general, a subwoofer with an EBP value below 50 is typically more suited for sealed enclosures, while values above 100 indicate a better match for ported enclosures. The range between 50 and 100 might indicate versatility, but an EBP of 110 strongly leans towards a design that benefits from the low-frequency extension and increased efficiency that a vented enclosure provides.

Vented enclosures allow for greater power handling and output, particularly in the low-frequency range. They achieve this by using a port that tunes the enclosure to a specific frequency, which increases the efficiency at that frequency and allows for deeper bass response by effectively coupling the rear wave of the cone with the front wave through the port. This results in a design that can maximize the performance of a subwoofer with a higher EBP value, making it the most suitable choice in this scenario.