Warm Audio WA-47F – Large-Diaphragm FET Condenser Microphone

The WA-47F from Warm Audio is a high-SPL, low-noise large-diaphragm FET condenser microphone inspired by the classic ’47-style studio mic.

Key Features

• K47-style gold-sputtered large diaphragm capsule: Delivers smooth highs, rich mids and controlled low end with classic studio character.
• Custom AMI / TAB-Funkenwerk output transformer and Fairchild FET circuit: Provides detailed clarity, wide frequency response and fast transient handling.
• High SPL handling: Capable of 137 dB SPL which extends to 147 dB with the –10 dB pad engaged, ideal for loud sources like kick drums and guitar cabs.
• –10 dB pad and 140 Hz high-pass filter: Built-in attenuation and filter allow effective control of loud or bass-heavy sources without extra hardware.
• Cardioid polar pattern only: Focused pickup design for straightforward setup and minimal bleed in tracking situations.

Customer Benefits

The WA-47F offers studio-level performance with impressive flexibility and tone. Whether you’re tracking a blistering drum kit, an amp with attitude or a pristine vocal take, this mic handles loud dynamics with ease while preserving detail and punch.

Quick Specs

• Polar pattern: Cardioid
• Frequency response: approx. 20 Hz–19 kHz
• Maximum SPL: 137 dB (147 dB with pad)
• Output impedance: 150 Ω
• Pad & filter: –10 dB pad, 140 Hz low-cut filter

What’s in the Box

• Warm Audio WA-47F microphone
• Wooden storage box
• Hard mount

Use Cases / Ideal For

Ideal for miking guitar cabinets, bass amps, kick drums, horns, and lead vocals that need to cut through. Also excellent for acoustic guitars and other sources where clarity and headroom are important.

Compatibility

Connect via XLR to any balanced mic preamp that supports phantom power. No external power supply required beyond standard studio phantom power.

Pros & Cons

✅ Pros:

• High-SPL capability makes it extremely versatile
• Premium capsule and transformer design deliver excellent detail and tone
• Built-in pad and low-cut filter reduce the need for extra equipment

⚠️ Cons:

• Cardioid only — no multipattern options
• Large body size and weight may require sturdy mic stand

The Warm Audio WA-47F is a robust, high-quality FET condenser microphone designed to handle the rigours of professional tracking while delivering vintage-inspired tone and modern build quality.