Product Description HDI-3800 Highlights Patented HDI™ (High-Definition Imaging) waveguide technology Patented 2410H-2 high-frequency compression driver 8-inch (200mm) cast frame, Advanced Aluminum Matrix cone woofers with 1.5-inch voice coils Contemporary design with premium finishes including high-gloss Black, satin Gray Oak wood veneer, and satin Walnut wood veneer General Specifications Enclosure Type: Bass-reflex design with rear-firing port High Frequency Transducer: 1-inch (25mm) Teonex compression driver Low / Mid Frequency Transducers: Three 8-inch (200mm) black Advanced Aluminum Matrix cone, cast frame woofers Crossover Frequency: 800Hz, 1800Hz Sensitivity (2.83V @ 1M): 92dB Nominal Impedance: 4 Ohm Recommended Amplifier Power: 25W – 300W Frequency Response: 37Hz – 30kHz (-6dB) Dimensions (H x W x D): 43.33 x 11.81 x 16.45” (1100.5 x 300.0 x 417.8mm) Net Weight: 83.78 lbs (38.00kg)