Roland JC-120 is a 120-watt RMS output combination amplifier, comprising 2 channels, 60 watts RMS each. You can use the guitar of any output with this device, as it has two input jacks (high-gain and low-gain). Both channels are provided with a Bright switch for a wider variety of tone setting. Provided with many sound effects such as sweet, creamy soft distortion effect and reverb effect, this device can also be connected to a keyboard to display its maximum performance. The LINE-IN jack allows stereo Keyboard to display its maximum performance.