Product Overview

Smooth Midrange Body and High-Frequency Control for Leading Wireless Transmitters

The transition from wired microphones to professional multi-channel wireless platforms can often amplify harsh upper-mid frequencies or thin out the lower-mid chest resonance of a vocalist. Standard wireless dynamic heads frequently struggle on loud stages, yielding either an over-saturated, muddy tone or a piercing high-end response that causes ear fatigue for monitor engineers and audiences alike.

The Telefunken M81-WH completely resolves these wireless sonic constraints. Developed as the perfect architectural complement to the brighter M80-WH capsule, the M81-WH brings a balanced, flat, and remarkably smooth frequency characteristic straight into your premium wireless infrastructure. Designed with a universal concentric ring conductor plate that mounts flawlessly onto compatible transmitter bodies, this capsule is the ultimate tool for taming sibilant singers, aggressive rock vocalists, and bright stage environments while maintaining pristine transient precision.

Product Description

Low-Mass Moving Coil Architecture and Custom T80 Transformer Core:

The exceptional speed and full-bodied depth of the M81-WH are rooted in its advanced internal transducer mechanics. It houses a proprietary 25 mm dynamic moving coil assembly paired with an ultra-thin, low-mass membrane. Because this capsule element eliminates the heavy mechanical drag and physical weight found in traditional dynamic diaphragms, it responds instantly to quick vocal transients and rapid performance shifts without choking or over-compressing.

To maintain true analog weight within a compact wireless footprint, Telefunken's engineering team neatly packed their proprietary Telefunken Elektroakustik T80 step-up transformer into the base of the capsule. Hand-wound and calibrated to exact tolerances, this transformer provides the M81-WH with its signature headroom, analog warmth, and structural depth. It handles impedance matching with digital and analog transmitter electronics perfectly, ensuring a clean, rich signal path that fits beautifully into a live mix with minimal equalization.

Flat Frequency Voicing and Superior Off-Axis Bleed Rejection:

The M81-WH is intentionally voiced to act as a problem-solver on loud concert stages, television broadcasts, and modern houses of worship. Its highly directional Supercardioid polar pattern maintains an exceptionally focused pickup zone directly in front of the headgrille. This tight pattern provides aggressive off-axis rejection, blocking stage wash, guitar amplifier bleed, and loud cymbal spill, which dramatically lowers the risk of sudden feedback loops.

While many performance microphones push upper-mid presence heavily, the M81-WH features a tailored frequency curve where the high-end presence between 2 kHz and 10 kHz is pulled back to a flatter profile. This design naturally controls harsh sibilance ("S" sounds) and prevents thin or reedy vocal characteristics. Additionally, its internal acoustic porting controls the proximity effect, ensuring that even when an energetic vocalist sings right up against the grille, the low-mids remain tight, clear, and perfectly defined.

Universal Compatibility and Tour-Grade Architecture:

Every M81-WH capsule is precision-machined, hand-assembled, and frequency-verified at Telefunken’s headquarters in South Windsor, Connecticut. The base features industry-standard 1.25"-28 male mounting threads and gold-plated contact rings, making it completely compatible with a wide array of premium handheld transmitters from Shure, Lectrosonics, and Sony. Built to withstand the punishing environment of global touring schedules, the capsule is wrapped in an industrial zinc die-cast housing finished in a classic flint grey powder coat and capped with a rugged chrome mesh headgrille for maximum daily durability.

Key Features

• SMOOTH, FLAT FREQUENCY RESPONSE: Tailored presence band tames harsh high frequencies and sibilance, adding rich midrange authority to vocals.

• CONDENSER-LIKE TRANS-ACCURACY: Delivers excellent detail and rapid transient response using a rugged moving coil design.

• CUSTOM AMERICAN T80 TRANSFORMER: Features an internal, hand-wound Telefunken transformer for pristine impedance matching and analog depth.

• LOW-MASS DIAPHRAGM ASSEMBLY: 25 mm ultra-thin membrane responds instantly to vocal inflections without boxy mid-range compression.

• SUPERIOR FEEDBACK REJECTION: Tight supercardioid polar pattern isolates the main vocalist while blocking side-axis stage wash and instrument bleed.

• BALANCED PROXIMITY PORTING: Advanced acoustic design prevents boomy low-end and muddy bass buildup when used close up.

• ROBUST 135 dB SPL HEADROOM: Handles intense, powerful vocal performances effortlessly without internal capsule clipping or distortion.

• UNIVERSAL TRANS-MATING THREADS: Screws directly onto leading Shure, Lectrosonics, and Sony handheld wireless transmitter bodies.

• HAND-CALIBRATED IN THE USA: Assembled, tuned, and quality-tested by hand at Telefunken's Connecticut facility.

Technical Specifications

What’s Included in the Box

• 1 x Telefunken M81-WH Dynamic Series Wireless Capsule Head Unit (Flint Grey/Chrome)

• 1 x Official Telefunken Elektroakustik Limited Warranty & User Registration Card