Here's what Fender say about the Acoustasonic 40
The Acoustasonic™ 40 amplifier offers portable amplification for acoustic-electric guitar and microphone. It’s a simple, flexible “grab and go” solution for a variety of musical performance and basic public address applications, and it can also be used as an onstage monitor when combined with a PA system.
6” Speaker with “WHIZZER” Cone
For more effective high-frequency response, the Acoustasonic 40 bears the unusual distinction of being the only Fender guitar amp to use a “whizzer” cone—a small supplementary speaker cone attached to the voice coil of the amps 6” speaker.
XLR and ¼” Inputs
The Acoustasonic 40’s convenient dual front-panel inputs include a standard ¼” jack for an instrument and an XLR input for a microphone.
Voltage 230V EUR Wattage 40 Watts Controls Channel 1: Volume, Bass, Mid, Treble, Reverb. Channel 2: Volume, Bass, Mid, Treble, Reverb Channels Two Inputs Two - (XLR / 1/4" combined) Effects Reverb Line Out One - (XLR with Ground Lift)
Cabinet Material 5-Ply 5/8" Lightweight Plywood Amplifier Covering Brown Textured Vinyl Grille Cloth Black Amplifier Jewel Red LED Handle Molded Plastic Strap with Nickel-Plated Caps
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Speakers Two - 6.5" Special Design Full-Range with Whizzer Cones Total Impedance 8 ohms
Amp Height 11" (27.9 cm) Amp Width 15" (38 cm) Amp Weight 16.5 lbs (7.5 kg)