Resilient Sounds RS 8M 8" Pro Audio Midrange Loudspeaker (single)

The Resilient Sounds RS 8M is an 8-inch pro-audio midrange driver built for high-output car installs, delivering up to 550 W max power and 98 dB sensitivity with a 95 Hz–9.5 kHz frequency range.

• Nominal Diameter: 8" (203 mm) – Standard 8-inch form factor suitable for midrange duties and a variety of enclosure designs.
• Max Power Handling: 550 W – Allows peak musical transients to be reproduced without clipping or distortion when driven by capable amplifiers.
• RMS Power Handling: 275 W – Indicates continuous power tolerance for sustained listening without overheating or performance loss.
• Frequency Response: 95 Hz–9.5 kHz – Defines the midrange to upper-midrange range this driver covers, informing crossover and system integration decisions.
• Nominal Impedance: 4 Ω – Typical low-to-mid impedance load for compatibility with a wide range of amplifiers and crossovers.
• Sensitivity: 98 dB – Higher sensitivity means more output for a given amplifier power, aiding perceived loudness in a system with limited amp headroom.
• Voice Coil Diameter: 1.5" – Larger coil aids heat dissipation and controlled excursion under high-power conditions.
• Voice Coil Wire: CCAW – Copper-clad aluminum winding reduces weight while maintaining electrical performance.
• Magnet: Ferrite – Provides a robust magnetic structure in a compact package, contributing to steady midrange performance.
• Thiele-Small Parameters:
  • Vas: 11.92 L – Indicates the paper or enclosure volume the driver behaves like for bass response, guiding enclosure design.
  • Fs: 101 Hz – Electrical resonance frequency, relevant to low-end extension and alignment with enclosure tuning.
  • Qms: 5.75 – Mechanical Q factor describing the moving mass and suspension losses of the driver.
  • Qes: 0.75 – Electrical Q factor reflecting electrical damping and voice-coil loss characteristics.
  • Qts: 0.67 – Overall Q factor, used to predict enclosure performance and damping in typical designs.
  • Cone Area Sd: 216.4 cm² – Effective radiating area; larger Sd supports higher potential acoustic output.
  • Mms: 13.64 g – Moving mass of the diaphragm and related components, influencing resonance and transient response.
  • BI: 6.07 Tm – BL product indicating motor strength and control of the voice coil under signal.
  • Re: 3.2 Ω – DC resistance of the voice coil, used for amplifier‑to‑driver impedance matching.
• Mounting Info:
  • Overall Diameter: 8.26" (210 mm)
  • Front Mount Baffle Cutout: 7.2" (183 mm)
  • Mounting Depth: 3.42" (87 mm)
  • Overall Depth: 3.74" (95 mm)

The RS 8M is designed for midrange duties within high-performance car audio builds, offering solid power handling and a broad midrange-to-upper-midrange window. Its 4 Ω impedance and 98 dB sensitivity support efficient amplification and clear midrange detail when integrated with appropriate crossover and enclosure strategies.