Shure 55SH Series II Cardioid Dynamic Microphone

The Shure 55SH Series II is one of the most iconic and visually recognizable microphones in the world, often affectionately referred to as the "Elvis mic" or "Retro mic" due to its classic Art Deco design. While its appearance harks back to a bygone era, the "Series II" designation indicates that it incorporates modern acoustic components for contemporary performance standards.

It's primarily a dynamic vocal microphone designed for live performance, public address, broadcasting, and any application where its distinctive vintage aesthetic is desired alongside reliable audio capture.

Here's a detailed look at its key features and specifications:

Iconic Design:

• Classic Unidyne Design: The most striking feature is its polished chrome die-cast metal casing with a prominent grille and integrated swivel mount. This look is directly inspired by Shure's groundbreaking Unidyne Model 55, first introduced in 1939. It's a visually stunning microphone that instantly evokes a sense of nostalgia and style.

Core Design & Capsule:

• Dynamic Microphone (Moving Coil): It's a dynamic mic, which means it's inherently robust and capable of handling high sound pressure levels (SPLs) without distortion, making it well-suited for the demands of live stage use.

• Cardioid Polar Pattern: The 55SH Series II features a cardioid (unidirectional) pickup pattern. This means it is most sensitive to sound coming from directly in front of the microphone and significantly rejects sounds from the rear. This helps to:

  • Minimize Feedback: It can be used in close proximity to loudspeakers without creating feedback problems.

  • Reduce Stage Bleed: Helps isolate the vocal or desired sound source from other instruments and ambient noise on stage.

• Tailored Frequency Response: The microphone's frequency response is specifically shaped for speech, vocals, and instrumental music. It has a characteristic Shure "presence peak" (a gentle rise from approximately 1 kHz to 10 kHz, peaking around 6.5 kHz) which helps vocals cut through a mix and sound clear and intelligible.

• Shock-Mounted Cartridge: The internal microphone cartridge is shock-mounted to minimize stand-transmitted noise and handling noise, ensuring quieter operation during performances.

Performance & Practicality:

• Frequency Response: 50 Hz to 15,000 Hz. While not as extended as some modern condensers, this range is optimized for vocal clarity and provides a warm, pleasant tone.

• Output Impedance: EIA rated at 150 O (270 O actual), suitable for connection to microphone inputs rated at 75 to 300 ohms.

• Sensitivity: -58.0 dBV/Pa (at 1 kHz, open circuit voltage), indicating a standard output level for a dynamic microphone.

• Built-in On/Off Switch: The 55SH Series II includes a convenient on/off switch, which is integrated into the swivel mount. This allows performers or speakers to easily mute the microphone when not in use.

• Self-Tensioning Swivel Mount: The attached swivel mount allows for tilting through 45 degrees forward and 80 degrees backward, providing flexible positioning options.

• Rugged Construction: Made with a chrome-plated die-cast metal casing, it's designed to resist wear, abuse, and the rigors of performance.

• Weight: Approximately 0.624 kg (1.37 lb), giving it a substantial, quality feel.

Applications:

• Lead Vocals (especially for vintage/retro acts): Its signature look makes it a perfect fit for rock and roll, blues, jazz, country, and Americana artists.

• Public Address & Speeches: Delivers clear voice reproduction.

• Broadcasting & Podcasting: Its classic look is often desired for on-camera appearances.

• Theater-Stage Sound Systems: Blends well with period aesthetics.

• Instrument Miking: While primarily vocal-focused, its tailored response can work for some instruments, especially if a warmer or vintage tone is desired.