Aquatic AV SWA6+ Amplified Bluetooth Stereo and Subwoofer Combo, 4 Channel, 4 x 72W at 2 Ohm, 8 Inch Cone

Where the SWA6+ stands out is its four-channel amplifier section, rated at 4 x 45 W into 4 ohms or 4 x 72 W into 2 ohms, with a built-in crossover so additional speakers can be wired in without adding a separate external amplifier. The same enclosure houses an 8-inch subwoofer cone for reinforced bass, and audio arrives over Bluetooth or through a stereo RCA input.

Aquatic AV intends this combined unit for boats, ATVs, marine settings and indoor or outdoor spas. The maker describes it as waterproof with UV, salt and fog protection, and it carries an IPx4 rating. Current draw is listed at 7 A maximum and only 6 mA in standby, and a stereo RCA output at 4 V can pass signal on to other equipment.

• Power: 4 x 45 W at 4 ohms, 4 x 72 W at 2 ohms
• Stable at both 4 ohm and 2 ohm loads
• Built-in crossover for connecting extra speakers
• Current draw: 7 A maximum, 6 mA standby
• Inputs: Bluetooth and one RCA stereo pair; output: one RCA stereo pair (4 V)
• 8 in. polypropylene cone, ABS plastic chassis, IPx4, RoHS
• Dimensions: 368.3 x 279.4 x 144.2 mm
• In the box: amplified Bluetooth subwoofer, Molex 12-pin male connector (AQ-UNH-2), Bluetooth antenna extension