Unbeatable Sound Quality with B-52 SP-1804 Professional Subwoofer

Looking for a professional subwoofer that can deliver high output from compact vented enclosures? Look no further than the B-52 SP-1804 18" Cast Frame Professional Subwoofer 4 Ohm. This powerful subwoofer features a low moving mass, 3" voice coil, and powerful ferrite motor, resulting in extremely high efficiency (100.4 dB 2.83V/1m) and excellent electrical damping.

Originally Used in ACTPRO18S Powered Subwoofer

The SP-1804 is originally used in the ACTPRO18S powered subwoofer, known for its powerful impact and incredible low-frequency performance. With a little boost, this subwoofer can deliver even more impressive results.

Rugged Construction for Professional Sound Environment

The SP-1804 is built to withstand the use and abuse of the professional sound environment. Its rigid cast aluminum frame and rugged construction ensure that it can handle the demands of professional audio applications.

Get the Best Deal with Factory Buyouts

For over 30 years, B-52 has manufactured Pro Audio gear in California using only high-quality components. We recently acquired tons of product from them, including the SP-1804, at a fraction of the original price. This is a one-time buyout opportunity, so quantities are limited.

Product Specifications

The SP-1804 has an impedance of 4Ω, a power handling of 550 Watts (RMS), and is sold as each unit. Its 4 ohm impedance makes it ideal for use with lightweight class D amplifiers.