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Source of refraction seismic waves currently are using a sledgehammer because of its convenience to improve data quality and its efficiency. Therefore firecrackers were tested as a source of seismic vibrations. This study aims to compare the use of firecrackers in terms of data quality and efficiency in the field. The methodology used in this study was to compare the acquisition data generated from seismic sources of firecrackers and the use of sledgehammers. The results are then analyzed both qualitatively and quantitatively. The use of firecrackers weighing 4, 5, and 6 grams resulted in a relatively equal amplitude compared to the use of a sledgehammer. The results of the frequency spectral analysis showed that the firecracker source had a dominant low frequency ranging from 30 to 80 Hz. Source of firecrackers and sledgehammer, dominant has the highest frequency is at 40 Hz so that firecrackers can be used as a source of seismic waves in seismic refraction. The first break made by the firecracker source was quieter than the one produced by the sledgehammer source. [ABSTRACT FROM AUTHOR]