Down4Sound D4S-NMR804 8" Neo Midrange Speaker – 4Ω (120W RMS)

The Down4Sound D4S-NMR804 is a lightweight, high-efficiency 8" Neo midrange speaker engineered for serious sound performance. Designed for high-output pro audio and competition-grade car systems, this driver delivers aggressive, ultra-clear mids with precision and speed — all while keeping weight to a minimum.

With 120W RMS power handling and a 100 dB sensitivity rating, it’s built to project vocals and instruments cleanly at any volume. Whether you’re building a stage-style setup or a door-panel powerhouse, the NMR804 delivers serious sound without compromise.

Key Features:

• 8” midrange driver with powerful Neodymium (Neo) motor

• 120W RMS power handling with 100 dB sensitivity

• Delivers tight, controlled mids with low distortion

• Lightweight construction ideal for high-performance builds

• Smooth frequency response from 200 Hz – 15 kHz

• Perfect for car audio, pro audio, and PowerSports systems

• Compact mounting depth for easy installation in tight spaces

Specifications:

• Size: 8” (210 mm)

• RMS Power: 120W

• Sensitivity: 100 dB (1W/1m)

• Frequency Range: 200 Hz – 15 kHz

• Impedance: 4Ω

• Magnet Type: Neodymium

• Mounting Depth: 3.07” (78 mm)

• Cutout Diameter: 6.54” (166 mm)

• Bolt Circle Diameter: 7.8” (198 mm)

• Net Weight: ~2.6 lb (1.2 kg)

Thiele/Small Parameters:

• Fs: 142 Hz

• Qms: 8.8

• Qes: 0.72

• Qts: 0.67

• Vas: 9.1 L

• Cms: 131 µM/N

• BL: 9.3 N/A

• Sd: 21.6 cm²

• Xmax: 2.5 mm

Precision Engineering:
The D4S-NMR804 4Ω features a lightweight Neodymium motor that increases magnetic strength while cutting unnecessary mass. The result: sharper response, improved accuracy, and loud, effortless output in any pro-level build.

Summary:
Lightweight, efficient, and built to perform — the D4S-NMR804 4Ω delivers next-level clarity and projection for serious sound systems. Perfect for high-output car audio or professional-grade pro audio applications.