Fixing support and power amplifier system

The utility model provides a fixing support and a power amplifier system, relates to the technical field of vehicle accessories, and aims to optimize the structure of the fixing support to a certain extent and improve the accurate alignment and fitting degree of a power amplifier chip and a radiator in the power amplifier system. The fixing support provided by the utility model is used for bearing a chip and comprises a support body, the support body comprises a main body part and a plurality of limiting parts formed along the circumferential direction of the main body part, the plurality of limiting parts and the main body part form a bearing space with an opening at one side, and the chip is embedded in the bearing space; a first limiting arm is formed on the main body part, and a part of the first limiting arm is located in the bearing space and abuts against the chip, so that the chip has the trend of moving in the first direction. 本实用新型提供的一种固定支架及功放系统，涉及车用配件技术领域，以在一定程度上优化固定支架结构，提高功放系统中的功放芯片与散热器的准确对位和贴合程度。