Sennheiser has resumed production of the MD 9235 microphone head, a dynamic cardioid capsule designed for use with the company’s wireless handheld transmitters. The component had been discontinued several years ago, but continued demand from touring engineers and performers prompted the company to bring it back into its product lineup.
The MD 9235 microphone head originally gained attention in live sound environments where vocal clarity and feedback control are critical. Engineers often relied on it in situations where performers move frequently across the stage or sing close to front-of-house speaker systems. Its cardioid pickup pattern helps reduce sound entering from the sides and rear, which can limit unwanted spill from other instruments and minimize feedback when the microphone is used in front of a public address system.
In 2020, Sennheiser shifted its focus to newer capsule designs, including the MM 435 and MM 445. These models introduced updated engineering approaches and gradually built their own user base among touring professionals and rental companies. Even so, requests for the MD 9235 continued to surface years after it left production, according to the company.
Sebastian Schmitz, a product manager involved with the project, said the continued interest led the development and manufacturing teams to explore the possibility of restarting production. Before committing to a new run, several samples were tested by touring sound engineers who had previously used the capsule in live environments. Their feedback played a role in the decision to bring the model back.
Technically, the MD 9235 is a dynamic microphone capsule built around a lightweight aluminium-copper voice coil. The design allows the coil to move more quickly than heavier conventional alternatives, which can help capture vocal detail in loud stage environments. The capsule is intended to deliver consistent vocal reproduction while maintaining strong rejection of ambient stage noise.
The microphone head uses Sennheiser’s standard capsule interface, allowing it to attach to a wide range of the company’s wireless handheld transmitters. Compatibility includes systems such as Spectera, Digital 6000, Digital 9000, EW-DX, EW-D, EW-DP, the 2000 series, and the evolution wireless G4 300 and 500 series. This broad compatibility means the capsule can be integrated into many existing wireless microphone setups used in touring, broadcast, and installed sound applications.
The MD 9235 covers a frequency response range of 40 Hz to 20,000 Hz with a tolerance of plus or minus 2 dB. Sensitivity is rated at 1.8 mV/Pa (-54.9 dBV/Pa), while the capsule can handle a maximum sound pressure level of 163 dB. These specifications place it firmly within the category of dynamic capsules designed for demanding live performance environments.
In terms of physical design, the microphone head weighs 119 grams and measures 51 millimeters in diameter with a height of 72.5 millimeters. Each unit is supplied with a carrying pouch and five replacement foam inlays.
The MD 9235 microphone head returns to the market with a suggested retail price of €599. Its reintroduction reflects a broader pattern in professional audio equipment, where established tools sometimes return due to continued demand from engineers who prefer familiar sonic characteristics and reliable performance in live production settings.
