Warm Audio WA-47 Large-Diaphragm Tube Condenser Microphone

The Warm Audio WA-47 is a premium large-diaphragm tube condenser microphone inspired by one of the most legendary studio microphones ever created. Built with fully discrete, transformer-balanced vacuum tube circuitry and a meticulously recreated K47-style capsule, the WA-47 delivers the bold, rich, and unmistakably musical tone that made the original ‘47 a cornerstone of classic recordings.

Throughout the 1960s, the original ‘47 microphone became a studio standard used on countless iconic sessions. It was famously favored by artists such as Frank Sinatra and trusted by legendary producers including George Martin during Beatles recordings. Warm Audio designed the WA-47 to capture the spirit of that historic sound while incorporating modern reliability and expanded versatility for today’s recording environments.

At the heart of the WA-47 is a custom reproduction K47-style capsule, carefully engineered to match the hole pattern and frequency response of the original vintage design. This capsule is paired with a JJ Slovak 5751 vacuum tube and a TAB-Funkenwerk (AMI) USA output transformer, producing the powerful low-end depth, detailed midrange presence, and smooth high frequencies that engineers associate with classic tube microphones.

Unlike many vintage recreations, the WA-47 offers nine selectable polar patterns, including cardioid, omnidirectional, figure-eight, and six intermediate patterns. This expanded pattern control allows engineers to explore a wide range of recording techniques and microphone placements, making the WA-47 an extremely versatile tool in the studio. Whether capturing a close vocal performance, room ambience, or stereo microphone arrays, the WA-47 adapts easily to the task.

With a maximum SPL handling of 140 dB and a wide 20 Hz – 20 kHz frequency response, the WA-47 performs beautifully on everything from delicate acoustic instruments to powerful drum and amplifier recordings. Its ability to maintain clarity and warmth across such a wide range of sources makes it a true studio workhorse.

The microphone is constructed with premium components throughout the signal path, including Wima and Solen French capacitors, ensuring stable performance and a refined sonic character. A high-quality Gotham GAC-7 seven-pin cable connects the microphone to its external power supply, minimizing signal degradation while preserving the full tonal depth of the tube circuit.

The WA-47 arrives as a complete professional recording package, including a dedicated external power supply, shock mount, premium cable, and a protective wooden presentation box. With its combination of vintage tone, modern flexibility, and high-end components, the Warm Audio WA-47 brings the classic sound of a legendary microphone within reach of today’s musicians, producers, and recording engineers.

Key Features

• Custom reproduction K47-style capsule modeled after the classic ‘47 design
• TAB-Funkenwerk (AMI) USA output transformer for vintage tone and headroom
• JJ Slovak 5751 vacuum tube for smooth, low-noise performance
• Nine selectable polar patterns including cardioid, omni, figure-eight, and six intermediate options
• Premium Wima and Solen capacitors throughout the circuit
• Gotham GAC-7 seven-pin tube microphone cable (5 m)
• Maximum SPL: 140 dB (<0.5% THD)
• Frequency response: 20 Hz – 20 kHz
• Self-noise: 11 dBA
• Output impedance: 200 ohms

Included Accessories

• WA-47 tube condenser microphone
• Shock mount
• External IEC grounded power supply
• Gotham 7-pin tube microphone cable
• Wooden presentation box
• IEC power cable