Celsus BBPT4 4″ Sub Subwoofer Enclosure Box Port Black Bass Reflex Tube
The Celsus BBPT4 is a 4-inch diameter black plastic subwoofer enclosure port designed to improve low-frequency performance in ported speaker boxes. With an 11 cm length and ribbed body, it ensures a tight, secure fit during installation. The rolled lip design promotes smooth airflow, helping reduce turbulence and maximise bass output.
Ideal for ported subwoofer enclosures, this port helps deliver a punchier, tighter bass response compared to sealed enclosures, making it a great upgrade for custom audio builds.
Features:
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4″ diameter bass reflex enclosure port
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11 cm port length
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Ribbed design for secure, tight fitment
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Rolled lip for optimum airflow and reduced noise
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Durable black plastic construction
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Enhances low-frequency response and bass output
Other sizes available:
