
Warm Audio WA-47F
- High-quality Fairchild transistors
- Wima and polystyrene capacitors
- Polar pattern: Cardioid
Warm Audio WA-47F Review
The WA-47F is a reliable recreation of a high-SPL, low-noise classic microphone, celebrated as a ‘secret weapon’ in world-class studios. Known as a top choice for kick drum sounds and vocals, the WA-47F faithfully reproduces the original ’47 FET model’s expansive dynamic range, fast transient response, and meticulous sound detail.
This microphone uses a premium reproduction of the classic K47-style capsule found in the original, delivering ultra-wide frequency response and clarity. A custom TAB-Funkenwerk USA output transformer drives the punchy, powerful sound captured by the capsule.
Safely store your mic in the included premium wooden box, and easily mount it to any stand with the built-in hard mount. The WA-47F features robust build quality and high-end components, making it a no-compromise addition to your professional microphone collection.

Warm Audio WA-47F Components
The WA-47F stands out with its unique, high-quality design featuring boutique components—including premium Fairchild transistors—for a no-compromise build. This faithful recreation of a high-SPL, low-noise classic brings outstanding sonic versatility to your recording setup.
Taking inspiration from its namesake, the WA-47F features a K47-style capsule. Its carefully reverse-engineered FET design results in a condenser microphone that can handle high sound pressure levels without the risk of overloading, delivering reliable and consistent performance.
For vocals, its gentle scoop and balanced top end allow voices to sit naturally in a mix of live instruments without losing detail. The maximum SPL of 137dB can be increased to 147dB with the 10dB pad engaged, making it an excellent choice for recording drums and amplified instruments. Additionally, a 140 Hz low-cut filter eliminates low-end muddiness while preserving clarity and fullness.
The large-core, imported German laminations contribute to the punchy, powerful sound captured by the capsule. Perfect for kick drums, horns, and loud guitar or bass amps, the WA-47F easily handles high SPLs up to 137 dB—and up to 147 dB with the 10 dB pad—making it a versatile addition to any studio.

Warm Audio WA-47F Sound and Design
Like all Warm Audio microphones, the WA-47F is a no-nonsense studio tool built with premium components and outstanding quality. Just like the originals, the WA-47F takes the sound signature of the WA-47 tube mic and replaces the valve with solid-state FETs. This means you get the same rich midrange and detailed bass, with the ability to handle very loud sources—without any compromise.
At its heart, the WA-47F uses a premium reproduction of the classic K47-style capsule found in the original microphone, delivering an ultra-wide frequency response and exceptional detail. The WA-47F features a single backplate, cardioid-only version of the same capsule used in our award-winning WA-47 tube microphone.
Complementing the capsule is a custom TAB-Funkenwerk USA output transformer, which helps deliver the punchy, powerful sound this mic is known for. The WA-47F also pairs Fairchild FETs with polystyrene and Wima capacitors, plus the AMI output transformer, giving the WA-47F the perfect frequency response to capture extra detail and depth.
A -10dB pad gives you extra headroom for those loud sources that need to stay loud. When you need to cut unwanted bass on sources like lead vocals or electric guitar cabs, just engage the built-in 140 Hz low-cut filter to save yourself from unnecessary post-EQ.
Our meticulous R&D process ensures a true-to-original output level and frequency response that meets the high standards of world-class audio engineers and recording facilities.
The WA-47F is housed in an ultra-durable nickel-plated brass body, with an updated head basket design that adds extra space around the capsule. Every WA-47F is hand-inspected at Warm HQ in Austin, TX by real musicians and engineers who are passionate about superior sound.
- Gold Sputtered, Large Diaphragm, Single Backplate, K47 Style Capsule
- Custom TAB-Funkenwerk (AMI) USA Output Transformer
- Premium Fairchild Transistors
- Wima And Polystyrene Capacitors
- Polar Pattern: Cardioid
- Max SPL: 137dB, 147dB With 10dB Pad Engaged
- Frequency Response: 20Hz-19kHz
- Output Impedance: 150 Ohms
- Pads And Filters: -10dB Pad, 140 Hz Low-Cut Filter
Why You Need the Warm Audio WA-47F
If you’re looking for a vintage microphone with a modern twist, the WA-47F is your best bet. You get all the classic features of the original microphone, with the added benefits of being made in 2022, having a warranty, and owning a brand-new piece of equipment.
We know nothing can truly replace the original, but buying a mic that’s 20 or 30 years old is always a gamble. It might stop working simply because its components are aging and starting to fail.
Conclusion
The microphone will be available after July 2022, and anyone interested will have the chance to get their hands on it. With a reasonable price for the quality you’ll be receiving, the WA-47F can provide everything you need in a vocal microphone.
If you have any questions about this microphone, please let us know in the comment section below or contact us through the Warm customer care page.