JBL 15 Inches Midrange Double Speakers

15-inch speaker specifications vary significantly by model, but common metrics include a power rating (e.g., 350W RMS) and nominal impedance (e.g., 8Ω). Other key specs are the frequency response (e.g., 45Hz–20kHz), maximum sound pressure level (SPL) (e.g., 130 dB), and the number of drivers (e.g., two-way or coaxial).