JBL LSR 2328P 8" Bi-Amplified Powered Studio Monitors (Pair) Frequency Range (+ / - 3 dB): 44 Hz - 18 kHz Max SPL Continous: Each / Pair: &gt; 103 dB / &gt; 109 dB Drivers (LF / HF): 8 in. 238G / 1 in. 231H Input Connectors: Balanced XLR, 1/4 in. TRS, RCA Max SPKL Peak: Each / Pair: &gt; 117 dB / &gt; 123 dB