ESB Audio 9.4M Novemila 100mm Midrange Carbon Cone Speaker (Pair)

ESB Audio 9.4M 4"/100 mm Cone Midrange (pair)

Key Features

• The magnetic pole piece, designed with magnetic flux analysis software, helps achieve perfect and homogeneous magnetic gap saturation for the benefit of voice coil movement. This reduces distortion and increases dynamics.
• A pure copper ring positioned in the air gap helps reduce voice coil inductance, providing minimal resistance during high-frequency reproduction. This means better high-frequency response, allowing the speaker to reproduce high-frequency sounds more accurately. Reducing inductance improves the handling of rapid transitions in audio signals. This can enhance the speaker's ability to reproduce transient sound pulses more accurately.
• The TCA controls the airflow moved by the cone and creates an aperiodic damping resistance, ensuring that the energy accumulated in the speaker's movement is released controllably and quickly without persistent oscillations. This contributes to a more accurate and faithful response to the sound source, as well as precision and overall sound quality.
• Double-coupled neodymium main magnets. This pair of high-temperature resistant neodymium magnets is one of the most powerful magnetic motor systems for an automotive midrange speaker of this size. Made from high-quality neodymium, they allow for a significant reduction in the size and mass of the magnetic motors.
• Pole plate CNC-machined from a single piece of very low carbon steel.
• Integrated, robust terminals accept large cables and are gold-plated to prevent power loss from the amplifier.
• The die-cast aluminum and powder-coated basket provides very low resistance to air movement, and its shape (verified by FEM analysis) reduces vibration and resonance.
• A wide, lightweight Nomex voice coil with an aluminum former significantly contributes to broadband extension.
• A large balanced Conex™ spider damper ensures linear movement in both directions, reducing distortion.
• The cone is made of vacuum and autoclave-molded high-modulus carbon, a technology rarely used in speakers due to its cost, but it brings immense benefits in terms of natural reproduction and high transient dynamics.
• The NBL rubber suspension has a shape designed to ensure very smooth movement with very small displacement, becoming increasingly controlled as the movement increases and approaches the limit. This also helps make this speaker very dynamic and capable of handling high powers.
• The laminated aluminum dust cap helps extend the frequency response of this midrange upwards, and its shape and size help smooth and linearize the frequency response.
• A CNC-machined aluminum ring secures the rubber suspension to the edge, ensuring perfect attachment and centering.
• CNC-machined aluminum protection grille (optional).

Technical Specifications

• Nominal Impedance: 4 ohms
• Nominal Power: 120 watts
• Transient Power: 240 watts
• Frequency Response: 100 Hz ~ 20 kHz
• Sensitivity: 90.6 dB 2.83V/1m