Descriptions

About: DS18 PRO-HY8.4B 8" 250W RMS Mid-Range Water Resistant Loudspeaker with Built-in Driver - 4 Ohm (Each) 

DS18's PRO-HY8.4B Hybrid speakers breaks barriers to bring you the best of both worlds. Designed to conquer the elements, the PRO-HY8.4B comes with water-resistant paper cones to fight nature's forces effortlessly. These speakers can withstand the harshest conditions while maintaining peak performance.The PRO-HY8.4B’s feature a high-volume 8" speaker and a 1" voice-coiled driver, both rated at an astonishing 250W RMS and 500W MAX power handling. With a sensitivity of 97dB and a frequency response ranging from 80Hz to 20KHz, these speakers deliver crystal-clear sound in every range.

DS18's PRO-HY8.4B’s driver have a titanium diaphragm, renowned for its remarkable stiffness-to-weight ratio. This premium material guarantees extraordinary clarity, so every nuance and detail is reproduced with pristine accuracy. The driver's magnet material is none other than neodymium, the powerful and lightweight material that guarantees superior control and response. Upgrade today and let the PRO-HY8.4B redefine your audio expectations.

Product Highlights:

• 8" Hybrid Coaxial Mid-Range w/Driver
• RMS Power: 250 Watts(500 Watts Peak)
• Impedance: 4-Ohm
• Ferrite & Neodymium Magnets
• Water Resistant IP55
• Easily Repaired With The PRO-HY/VC

Specifications:

• Nominal Diameter: 8"
• Nominal Impedance: 4 Ohms
• RMS Power Handling: 250 Watts
• Peak Power Handling: 500 Watts
• Sensitivity: 97dB
• Frequency Response: 80Hz - 20KHz
• Recommended Hi Pass Crossover: 100 Hz
• Sold Individually 

Midrange Specifications: 

• Voice Coil Diameter: 1.5” (38.6 mm)
• Voice Coil Former Material: Glass Fiber
• Winding Material: CCAW
• Cone Material: Water Resistant Paper
• Surround Material: Cloth
• Basket Material: Aluminum
• Basket Color/Finish: Glossy Red
• Magnet Material: Ferrite
• Magnet Weight: 27 oz
• Displacement Volume: 0.051L

Thiele & Small Parameters

• Equivalent Volume (Vas): 10.048L
• Excursion (Xmax): 9.2 mm
• Free Air Resonance (Fs): 135 Hz
• Mechanical Factor (Qms): 5.96
• Electrical Factor (Qes): 1.321
• Total Factor (Qts): 1.011
• Mechanical Mass (Mms): 9.69g
• Mechanical Compliance (Cms): 137.345 mm/N
• BL Factor (BL): 4.58
• Voice Coil Inductance (Le): 4.22mH
• Cone Area (Sd): 226.98 Cm2
• DC Resistance (Re): 3.4 ohms
• Mechanical Mass w/o Air (Mmd): 7.724 g

Driver Specifications: 

• Voice Coil Diameter: 1” (25.4 mm)
• Voice Coil Former Material: Kapton
• Winding Material: CCAW
• Diaphragm Material: Titanium
• Magnet Material: Neodymium
• Horn Diameter: 3.26"

Measurements:

• Overall Diameter: 8.31" (211 mm)
• Overall Depth: 4.65" (118.2 mm)
• Front Mount Baffle Cutout: 7.1" (180.3 mm)
• Mounting Depth: 4.29" (109 mm)
• Motor Diameter: 4.59" (116.6 mm)