ESB Novemila Series 9.3M 3 Inch High End Cone Midrange Speaker 110w RMS Pair

The ESB Novemila 9.3M is a 3 inch (75 mm) high-end cone midrange speaker rated at 110W RMS (220W peak), sold as a pair. It is part of ESB Audio's Novemila Series, designed for high-quality sound installs requiring a fast, detailed midrange driver.

Key specifications

• Size: 3 inch / 75 mm
• Power handling: 110W RMS, 220W peak
• Impedance: 4 ohm
• Sensitivity: 90.8 dB (2.83V/1m)
• Frequency response: 130 Hz to 20 kHz
• Mounting depth: 48 mm
• Cutout diameter: 73 mm
• Cone: vacuum and autoclave moulded high-modulus carbon

9.3M 3"/75 mm high-end cone midrange

The magnet pole yoke is designed using magnetic flux analysis software to achieve perfect, homogeneous saturation of the magnetic gap. This reduces distortion and increases dynamics by optimising the coil stroke.

The high-temperature resistant neodymium magnet is one of the most powerful motor magnet structures available for a car audio midrange of this size. Made from high-grade neodymium, it allows the magnetic motor to be significantly reduced in size and bulk.

TCA controls the flow of air moved by the cone, creating aperiodic damping resistance. It ensures energy accumulated during speaker movement is released in a controlled, fast manner without persistent oscillations — contributing to a more precise and faithful response to the audio source.

• Pole plate CNC machined from a solid piece of ultra-low-carbon steel.
• Gold-plated soldering terminal saves space and prevents power loss from the amplifier.
• Die-cast aluminium, powder-coated basket offers very low resistance to airflow; its shape (verified by FEM analysis) reduces vibration and resonance.
• Wide, lightweight Nomex voice coil with aluminium winding contributes to wide bandwidth extension.
• Large balanced Conex spider damper ensures linear excursion in both directions, reducing distortion.
• Collar joining the voice coil and cone distributes pressure over a large area, reducing deformation and distortion.

Carbon cone

The cone is vacuum and autoclave moulded from high-modulus carbon — a technology rarely used in loudspeakers due to cost, but one that delivers significant benefits in naturalness of reproduction and transient dynamics. Made in a single piece with no separate dust cap, this design improves dispersion homogeneity and frequency response regularity at the high end, particularly advantageous at this small size.

NBL rubber surround

The NBL rubber surround is shaped to ensure very smooth movement at low excursion, becoming increasingly controlled as excursion increases towards its limit. This makes the speaker highly dynamic and capable of handling high power.