Specifically designed for any stringed acoustic instrument that can be amplified, including everything from electro-acoustic guitars to violins and double-basses, the Acus One For Strings Ferdi ONE-5F combo amplifier simply delivers high-quality sound while keeping the rig compact. This amp delivers up to 70 Watts of output, enriched by the balanced combo of a 5 inch speaker and a 1 inch dome tweeter which result in a 106 decibel SPL level and a full and accurate 50Hz to 20kHz frequency range. The Acus ONE-5F: Wide Sound, Full Control While compact, this combo acoustic amplifier is still pretty extensive. Three channels are supplied, each with dedicated three-band EQ controls and built-in effects can also be applied per channel, giving you the pick of two different reverb types, a chorus and a delay. As well as standard dynamic microphones, this amplifier can also take active condenser microphones thanks to the built-in phantom power. And, thanks to the set of three selectable foundation tones, the output of this amp can be specifically tuned to voice an electro-acoustic guitar or classical instruments by selecting Flat mode; electric and electro-acoustic basses and double basses when in Bass mode; or semi-hollow electric guitars and other amplified jazz guitars when you flip it into Jazz mode. The Full Setup Every channel of the Acus ONE-5F has been fitted with a mono jack input for an instrument and an XLR input for a microphone, giving you more than enough options so you can adjust the setup to match the ensemble or line-up. A direct XLR output has also been fitted so the sound can be sent out to a mixer or PA system and, just below that, you'll even find a jack port for an external footswitch (not included). A handy TRRS audio input and output has also been provided alongside a port for the included Bluetooth receiver. This comprehensive acoustic combo amplifier also comes including a 24V DC power supply.