Yamaha Kb400 Keyboard Combo Amplifier.

Sold by Soundlabz · Accra Metropolitan

It features 400 watts of output power. The amplifier has three independent channels with separate inputs and equalization controls. It includes a large main speaker (woofer) and a smaller high-frequency speaker (tweeter). The combo design integrates a preamplifier, tone controls, power amplifier, and speakers into a single cabinet.