This study was carried out to investigate effects of acoustic and thermofluid performance of a Ranque-Hilsch Vortex Tube (RHVT) with different numbers of swirl generator nozzles. The number of nozzle used in the experiment was 1, 2, 3, 4, 5 and 6 nozzle(s), respectively. Sound signal produced by the device was recorded using two microphones located at hot side and cold side of the tube. The sound signal was transformed using Fast-Fourier Transform (FFT) to obtain the frequency representation. Then, the frequencies produced were related to its themofluid performance of each configuration.