JZ Microphones The Amethyst Studio Condenser Microphone

The Amethyst — A Modern Take on Classic Vintage Condenser Sound

The Amethyst by JZ Microphones is a premium-class large-diaphragm condenser microphone engineered to deliver the warm character that defined the golden age of recording. Inspired by fire and built by hand in Latvia, this electrostatic design pairs a 25 mm (1") diaphragm with patented Golden Drop™ capsule technology — producing a lighter, faster-moving membrane for greater transient precision and reduced coloration. The result captures vocals, acoustic instruments, and grand piano with a smooth top end, pleasing mids, and rich lows that sit naturally in a mix.

What Sets This Condenser Apart

Two innovations define this microphone's character. The Golden Drop™ capsule technology applies a proprietary coating to the diaphragm, making it lighter and faster — translating into clearer transient response, lower distortion, and a transparent sound without harshness. Complementing that capsule is a Class A discrete amplifier circuit, hand-built using selected components for maximum performance, durability, and a low 7 dB-A self-noise floor.

Capsule and Transducer Performance

This electrostatic transducer with pressure-gradient operating principle gives it the directional control engineers prize. Measuring 25 mm (1"), the active diaphragm places it in the large-diaphragm category, ideal for capturing lead vocals and acoustic sources. The cardioid polar pattern focuses on the source while rejecting off-axis room noise.

• Transducer Type: Electrostatic — pressure-gradient design for focused capture
• Diaphragm Diameter: 25 mm (1") — large-diaphragm body and air
• Polar Pattern: Cardioid — isolates the source and minimizes room bleed
• Sensitivity: 21 mV/Pa — strong output for clean preamp performance

Electrical Performance and Headroom

From whisper-quiet acoustic guitar to loud, brassy vocalists, this microphone's electrical specifications give engineers a wide working range. The 7 dB-A noise floor is low for a large-diaphragm design, capturing subtle detail in soft vocals and room ambience. A 134 dB maximum SPL means the capsule handles loud sources like drum overheads, guitar cabinets, and brass without distortion.

• Self-Noise: 7 dB-A — quiet enough for soft sources and room micing
• Maximum SPL: 134 dB — handles loud drums, guitar cabs, and brass
• Dynamic Range: 127 dB — wide working range from quietest detail to loudest peaks
• S/N Ratio: 87 dB-A — clean signal-to-noise performance

Build Quality and Connectivity

At 350 g and measuring 168 mm × 63 mm × 41 mm, this model is a solid microphone that sits comfortably on a standard studio stand or the optional JZ shockmount. The all-metal body is handcrafted in Latvia, with four metal discs on the narrow sides serving as mounting points for the optional shockmount. Power comes from standard +48V DC phantom power via a 3-pin XLR male connector.

• Weight: 350 g — balanced feel on standard microphone stands
• Dimensions: 168 mm × 63 mm × 41 mm — compact form factor
• Output Connector: 3-pin XLR male — universal professional audio connection
• Power Requirement: +48V DC phantom power — standard studio supply

The Right Microphone for Vocalists, Engineers, and Producers

Engineers, producers, and lead vocalists will find this flagship large-diaphragm condenser delivers vintage warmth. Lead vocalists appreciate the smooth top end and pleasing midrange that requires minimal post-production EQ, while engineers tracking acoustic guitar, violin, cello, and grand piano benefit from the cardioid pattern and quiet 7 dB-A self-noise. The 134 dB maximum SPL also makes this model a flexible tool for drum overheads, guitar cabinets, and brass.

JZ Microphones — 30+ Years of Capsule Innovation

JZ Microphones brings more than 30 years of microphone design experience to every product. The brand's signature Golden Drop™ capsule technology — a proprietary diaphragm coating that makes the membrane lighter and faster — is the foundation of the entire JZ lineup. Trusted by over 15,700 producers and Grammy winners worldwide, the company has earned endorsements from engineers like S. Husky Hoskulds (Grammy Award-winning engineer). Each unit is hand-made by senior craftsmen and backed by a 5-year warranty.