http://www.jinstartech.com/

General Attributes:

CLARK AQP545  very good price

The AQP545 is an underwater subwoofer add-on kit for the full range Lubell 9484 underwater pool speaker kit, offering low-end extension down to 60 Hz. Install one AQP545 subwoofer kit next to each 9484 kit, one per each 20 ft x 20 ft section of the swimming pool. The AQP545 is available with choice of 50 ft, 100 ft, 150 ft, or 200 ft hardwired cable. Use one A2100 amplifier to power each underwater speaker pair, and link multiple amplifiers using stereo RCA cord.

• Measured Response: 130Hz - 650Hz @ 158dB/uPa/m +/-10dB
• Power Handling (music): 135 watts continuous
• Impedance: 4 ohms nominal
• Depth Rating: 10' (3.05 meters)
• Magnet Assembly: 20 oz 42 MGO Neodymium
• Transduction Force: 2.9 lb-ft/watt
• Tactile Force Peak: 392 lb-ft.
• AQ339 Speaker Dimensions: 8" diameter x 5" axial length
• Country of Origin: USA (CE & RoHS compliant)
• PDF Documents and data: TVR plot, SPL plot, Z (impedance) plot, Tabular Data, Diluvio (AQ339) brochure, Diluvio (AQ339) installation guide, AQP140 brochure & manual, CE Declaration
• ACCESSORIES: Russound A2100 power amp (powers pair of speakers)