Choice of Loudspeaker System
Good:
100 Watt / 6-1/2 Duo Cone 8 ohms good performance for pools, spas, small gardens, yards & patios, balconys.
Sensitivity 89 db spl 1 watt / 1 meter
Freq. Response 65hz - 17 khz +/- 3db

Better:
125 Watt / 6-1/2 Two-Way 8 ohms better for small & medium sized areas including pools, spas and tennis courts.
Sensitivity 89 db spl 1 watt / 1 meter
Freq. Response 55hz - 20 khz +/- 3db

Best:
250 Watt / 6-1/2 Two-Way 8 ohms commercial model rated best in overall high fidelity performance. For use in theme parks and where large wide area's of sound coverage is needed.
Sensitivity 91 db spl 1 watt / 1 meter
Freq. Response 55hz - 20 khz +/- 3db