The Ramsa 2 Channel Power Amplifier WP-9055 is a high-quality piece of pro audio equipment perfect for musical instruments and gear. With the capability to power multiple channels, this amplifier is ideal for musicians and audio engineers looking to enhance their sound system. The Ramsa brand ensures reliability and performance, making this model a popular choice for those in need of a powerful amplifier for their setup. Though one side may not be working at full capacity, this amplifier can still provide a strong and clear sound output for your audio needs. Tested one sides works No output on the second side