Roland KC-550 Keyboard Amplifier - 2011

Here is a Roland KC-550 keyboard amplifier, a flagship model from Roland’s renowned KC series designed for powerful, full-range sound reinforcement in both live and studio environments. Delivering 180 watts of output through a 15-inch speaker paired with a horn tweeter, the KC-550 is built to handle the wide frequency demands of keyboards, electronic instruments, and multi-source setups with clarity and authority.

The amplifier features four input channels, providing flexible connectivity for multiple instruments or audio sources. An Output Select switch allows users to route the monitor signal to different destinations, enhancing stage monitoring control. A Shape switch is also included for quick tonal adjustment, enabling fast contouring of the overall sound.

Tone shaping is further refined with a 3-band EQ, allowing precise adjustment of low, mid, and high frequencies. The inclusion of a dedicated subwoofer output (compatible with the KCW-1) extends low-end response for larger performance setups. For integration into professional systems, the KC-550 provides a balanced XLR line output for direct connection to mixing consoles, as well as Stereo Link In/Out functionality for chaining multiple units in stereo configurations.

This example is in good working condition. One of the knobs on the Low volume control section is missing; however, all functions operate correctly and the amplifier remains fully usable for rehearsal and live performance applications.

Specifications:

Year: 2011
Model: Roland KC-550
Power: 180 watts
Channels: 4 inputs
Controls: 3-band EQ, low volume control (knob missing), shape switch
Speaker: 1 × 15" speaker + horn tweeter
Inputs: 4 channels
Outputs: XLR line out, subwoofer output (KCW-1 compatible), stereo link in/out
Construction: Keyboard combo amplifier
Condition: Good working condition (missing one low volume knob)