Up for sale is a vintage 4-channel power amplifier from the Pyramid Gold Series. This high-quality amplifier was manufactured by the renowned company Pyramid and is brand new  It is perfect for car audio enthusiasts who are looking for a reliable amplifier to power their sound system. With 2 channels, this amplifier can handle multiple speakers and deliver crystal-clear sound. The model number of this amplifier is PB-250 and it has not been modified in any way. . This amplifier is perfect for use in vehicles and is an ideal addition to any car audio system.