JBL LSR2328P Bi-Amplified Studio Monitor JBL long-excursion 8" woofer with high-flux motors for accurate, extended low frequency response to 37 Hz Biamplified system with 95 watt low frequency and 70 watt high frequency internal amplifiers for high SPL (Sound Pressure Level) in demanding production applications. High frequency and low frequency trim controls allow adjustment of frequency response to preference, or to compensate for acoustically reflective or absorptive listening environments Balanced XLR, 1/4" and unbalanced RCA connectors with variable detented level attenuator allows interface to a broad range of signal sources JBL long-excursion 8" woofer with high-flux motors for accurate, extended low frequency response to 37 Hz Biamplified system with 95 watt low frequency and 70 watt high frequency internal amplifiers for high SPL in demanding production applications. High frequency and low frequency trim controls allow adjustment of frequency response to preference Balanced XLR, 1/4" and unbalanced RCA connectors with variable detented level attenuator allows interface to a broad range of signal sources