The Fender KXR100 is a keyboard amplifier, a member of the KXR series, designed for full-range instrument amplification, suitable for keyboards, acoustic/electric guitar, electric violin, and voice. It features three independent channels, a 4-band master EQ, master reverb, and volume controls, along with a heavy-duty Fender Special Design speaker and dual piezo-electric horn. 
Here's a more detailed breakdown:
Design and Features:
Full-Range Amplifier: The KXR100 is designed to be a portable PA system, capable of amplifying a wide range of instruments. 
Three Independent Channels: Each channel has a 1/4-inch input jack and volume control, with channel #1 also featuring an XLR input for a low-impedance microphone. 
Master EQ: A 4-band master EQ, master reverb, and volume controls are included for shaping the sound. 
Speaker and Horn: It features a heavy-duty Fender Special Design speaker and dual piezo-electric horn for full-range sound reproduction. 
Compact and Portable: Its compact design and medium-level output power make it suitable for rehearsals, studios, and small club performances. 
Intended Use:
Keyboard Amplifier: Primarily designed for electronic keyboards, but can be used for a variety of instruments. 
Portable PA System: The design allows it to function as a self-contained portable PA system for small gigs or rehearsals. 
Versatile Instrument Amplifier: Suitable for acoustic/electric guitar, electric violin, and voice, in addition to keyboards. 
Additional Features:
Fx Loop: Some models include an FX loop for connecting external effects pedals. 
Headphone and Recorder Outputs: Some models have headphone and recorder outputs for practice and recording.