JBL PRX615M (each)

The primary distinction between the JBL PRX615M and the newer PRX912 lies in their woofer size, which directly impacts low-frequency performance. The PRX615M features a larger 15-inch woofer compared to the 12-inch woofer found in the PRX912. This difference suggests the PRX615M may offer deeper bass extension, while the PRX912 might prioritize portability or a slightly more compact footprint. Additionally, while both are 2-way systems, the PRX912 is commonly sold as a pair, which may offer better value for stereo setups compared to the PRX615M, which is sold individually. Consumers focused on maximum bass output should lean toward the larger driver in the PRX615M.