Item model number: 305PMKII. Building on JBL legacy of high-quality sound performance, the 3 series Mk II represents an upgrade of the impressive LSR3 series. The Mk II series now features updated high-frequency (HF) and low-frequency (LF) transducers, which respectively provide optimized damping for superior transient response and greater linearity that allows impressively deep bass with lower harmonic distortion.
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