Wattage Range: 40-99 Watts Bringing together features like a dual 8" foam-surround low-frequency speaker design, an array of onboard effects including reverb, delay, chorus and more, and a Voice control for modifying your tone or allowing it to sing on through, the Fender Acoustasonic 150 Acoustic … It’s a simple option that offers the basic necessities for acoustic players performing or practicing. For those looking for a portable acoustic amp, the Fender Acoustasonic 40 is a great option. This compact amp is ideal for performing in small venues, and can easily be picked up and packed for your next live gig. The shape will be a roadblock for some acoustic guitarists, but the Acoustasonic—which is a name pinched from one of Fender’s acoustic amp series—has numerous important differences that make it more appealing than similar-looking guitars that Fender has offered. Summary: Head/Combo/Cabinet: Combos Amp Electronics: Solid State Amp Speaker Configuration: 2x6.5 Speaker Details: Original. Description. Fender Acoustasonic 40 2-Channel 40-Watt 2x6.5" Acoustic Guitar Amp USED.