There are optically and technically matched passive radiators available for all of our bass drivers. These are generally better and more variable in use than simple bass reflex tubes.



A passive radiator can be used instead of a port, which is commonly used in bass reflex applications. Together with an active driver, it works according to the Helmholtz resonator principle.

If a passive radiator is used, we still have quite the same response like a vented enclosure:  We make use of one simple resonance at the tuning frequency. The acoustically behavior is quite similar, although there are relevant differences in practice.

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