High-Performance Audio - Experience unparalleled sound quality with DS18's 8PRO400MR-4 8" Professional Mid-Range Loudspeaker, delivering powerful and clear audio with 200W RMS and 400W MAX power handling Impressive Sensitivity - Boasting a high sensitivity of 104dB (1w/1m), this speaker ensures that even subtle nuances in your music are reproduced with clarity, making it perfect for audiophiles and music enthusiasts Advanced Technology for Reduced Distortion - Equipped with copper demodulating rings, the speaker minimizes distortion, providing a cleaner and more accurate sound output. Enjoy your music the way it was meant to be heard Optimal Heat Dissipation and Durability - The 1.5" voice coil made of Til material not only enhances heat dissipation for prolonged playtime but also contributes to the durability of the speaker, ensuring a long-lasting and reliable audio performance Easy Installation and Versatility - With push speaker terminals, installation becomes hassle-free. The versatile frequency response range of 100Hz-12.5KHz and recommended HI Pass Crossover at 160Hz make it suitable for various audio setups, from car audio systems to home entertainment

SPECS 

SKU 8PRO400MR-4 
Nominal Diameter 8" / 203mm 
Nominal Impedance 4 Ohms 
RMS Power Handling 200W 
MAX Power Handling 400W 
Sensitivity (1w/1m) 104dB 
Frequency Response 100Hz-12.5KHz 
Recommended HI Pass Crossover 160Hz 
Sold in Pair or Single Single 
Grill Included No 

FEATURES 

Interleaved Sandwich Voice coil (ISV) No 
Demodulating Rings Copper Ring 
Improved Heat Dissipation No 
Cone Shape Curvilinear 
Speaker Terminals Push 8ga 

MOTOR 

Voice Coil Diameter 1.5" / 38.6mm 
Voice Coil Former Material Til 
Winding Material CCAW 
Cone Material Paper 
Dust Cap Material Paper 
Surround Material Cloth 
Spider Diameter 4" / 102mm 
Leads Connection Type Spider Crossed 
Basket Material Steel 
Basket Color/Finish Black 
Magnet Material Ferrite 
Magnet Weight 40 Oz 
Displacement Volume 0.56L / 0.02ft3 

THIELE & SMALL PARAMETERS 

Equivalent Volume Vas 37.3L / 1.31ft3 
Excursion (one way) Xmax 0.75mm 
Free Air Resonance Fs 70Hz 
Mechanical Factor Qms 4.31 
Electrical Factor Qes 0.34 
Total Factor Qts 0.32 
Mechanical Mass Mms 12.72g 
Mechanical Compliance Cms 0.43mm/N 
BL Factor BL 7.44 
Voice Coil Inductance Le 0.03mH 
Cone Area Sd 246.06cm2 
DC Resistance Re 3.5ohms 
Mechanical Mass w/o air Mmd 12.5g 

MEASUREMENT 

Overall Diameter 8.19" / 208mm 
Overall Depth 3.72" / 94.6mm 
Front Mount Baffle Cutout 7.36" / 187mm 
Mounting Depth 3.48" / 88.5mm 
Motor Diameter 5.1" / 130mm