First choice would be our AMP200 a true High current Power amplifier especially if you are considering adding another pair of outdoor speakers. This amplifier has A and B speaker output and loves to run at 4 ohm (2 pair of 8 ohm speakers in parallel connecting speaker A and Speaker B and playing both at the same time). Two pair connected to the AMP200 will definitely play as loud as you want with additional headroom. The second more economical choice would be our XMP100 a digital amplifier versus the AMP120. But the AMP200 addresses your initial problem plus allows you to add a second pair of speakers. Sometimes due to the space you are playing in (the outdoors) it is wise to add additional speakers rather than trying to play a single pair louder.
Customer Service - Q&A
on May 8, 2017