The purpose of this study was to investigate the perceived service quality of QC Car Audio users and compare the quality of service provided by QC Car Audio stores classified by their demographic characteristics. The sample was 267 customers using the QC Car Audio service from January 2015 to January 2017. The statistics used for the data analysis included frequency percentage mean standard deviation and t-test was applied as well as the analysis of one-way ANOVA. The study found that the overall quality of QC Car Audio service provided by the customers was at the highest level. It was also found that the customers’ different gender age marital status education monthly income occupation and service location did not significantly vary in terms of the service quality perception towards QC Car Audio in the overall. When looking into each five aspects there were no significant differences. However different service locations yielded different service quality perception towards QC Car Audio at the .05 statistically significant.