Sennheiser MZC 1-1 GREY Small frequency cap for SL Headmic 1, grey

Sennheiser MZC 1-1 GREY Small Frequency Cap

The Sennheiser MZC 1-1 GREY (Article Number: 509486) is a factory-original original equipment manufacturer (OEM) acoustic modification accessory designed for professional subminiature condenser microphones, specifically the Sennheiser SL Headmic 1 series and MKE 1 lavalier microphones.

When positioning a headset or lavalier close to a performer's mouth, the proximity effect can sometimes overemphasize lower frequencies, or the high-frequency response may need a subtle accent to optimize vocal clarity. This specialized, slip-on grey cap subtly adjusts the acoustic physics at the diaphragm inlet, providing a gentle high-frequency presence boost without the need for electronic equalization.

Key Architectural and Acoustic Attributes

• Subtle Presence Treble Lift: The internal acoustics of the Small cap provide a controlled, subtle high-frequency boost. This enhances vocal crispness, clarity, and articulation while maintaining a balanced, natural sounding audio profile.

• Discreet Matte Grey Aesthetic: Finished in a neutral, low-reflection matte grey coating, this cap matches grey-chassis or silver-tone headset configurations. It delivers an elegant, professional look for corporate presentations, broadcasts, and live theater.

• Integrated Capsule Moisture Shield: The cap serves as a reliable physical barrier over the delicate subminiature capsule ports. Its precision micro-grille alignment deflects perspiration, sweat, makeup, and hairspray away from the internal pre-polarized condenser elements, preserving the mic's long-term performance.

• Wind and Pop Diffusion: The geometric layout provides passive protection against sudden direct air movement, providing up to 15 dB attenuation of minor proximity breath pops and low-level drafts without requiring a bulky foam windscreen.

Technical Specifications Matrix

Field Configuration and Application Advice

When to Deploy the Small Cap: Use this Small variant (1-1) for standard close-speech applications where the headset is placed near the corner of the mouth and simply requires a touch of high-end polish. If the microphone must be hidden beneath heavy wardrobe fabrics, buried deep within a costume, or placed inside a performer's hairline, look to the larger MZC 1-2 variant for a stronger high-frequency boost to cut through material damping.

Tool-Free Slide Installation: Swapping a frequency cap is simple and requires no tools. Gently slide the cap straight onto the tip of the subminiature microphone capsule until it seats firmly over the integrated friction collar. To maintain pristine acoustic response and prevent buildup, regularly slide the cap off and wipe it down with a dry, lint-free microfiber cloth to remove residual makeup or oils.