Warm Audio WA73-EQ Single-Channel British Mic Preamplifier + EQ
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WA73-EQ — Single-Channel Class A Microphone Preamp With EQ
Classic British Console Sound With Modern Control
The WA73-EQ is a professional single-channel Class A microphone preamp inspired by the legendary 73-style British console circuits. It delivers rich analog warmth, harmonic saturation, and musical depth that have defined countless iconic recordings.
With its integrated 3-band, console-style EQ, the WA73-EQ allows precise tone shaping directly during tracking, reducing the need for heavy post-processing.
What You Need To Know
The WA73-EQ includes all essential features required for a complete professional recording experience.
The built-in high-pass filter effectively removes unwanted low-frequency noise before recording.
Switchable unbalanced insert send/return connections allow integration of external gear such as compressors or EQs before the output transformer.
Additional features include:
- 48V phantom power
- instrument (DI) input
- line-level input
- XLR and TRS I/O
- polarity inversion
- output level control
- Tone button for changing input transformer impedance and tonal character
Console-Grade EQ
The WA73-EQ features a premium 3-band inductor-based EQ:
- Low band: 35 / 60 / 110 / 220 Hz
- Mid band: 360 / 700 / 1600 / 3200 / 4800 / 7200 Hz
- High band: 10 / 12 / 16 kHz
UK-made Blore-Edwards dual-concentric potentiometers ensure precision and durability.
Technical Specifications
Type: Single-channel Class A microphone preamp with EQ
Gain: up to 80 dB (stepped switch)
Frequency Response: 20 Hz – 20 kHz ±0.5 dB
High-Pass Filter: 50 / 80 / 160 / 300 Hz
Inputs: XLR (mic), TRS (line), instrument DI
Outputs: XLR and TRS
Insert: TS send/return
Phantom Power: 48V
Polarity Switch: yes
Metering: LED
Power: IEC 115/230V
Chassis Depth: 9.5”
Form Factor: 19” rackmount
Components & Build Quality
- UK-made Carnhill input and output transformers
- Fully discrete Class A circuit
- Hand-wired and hand-assembled
- Inductor-based EQ
- Premium-grade components
Carnhill transformers provide authentic analog saturation and classic British console tone.
Applications
- Professional vocal recording with analog warmth
- Instrument tracking (guitar, bass, keys)
- External processing via insert points
- Real-time tone shaping during recording
Build Quality
Each WA73-EQ unit is meticulously hand-tested to ensure consistent, professional-grade performance.
Legendary Heritage
Original 73-style preamps were used on recordings by Bob Dylan, The Rolling Stones, Foo Fighters, Kendrick Lamar, and many more. The WA73-EQ continues that legacy with modern reliability and accessibility.
WA73-EQ — bring classic analog console tone into your recording chain.
Review of Warm Audio WA73-EQ Single-Channel British Mic Preamplifier + EQ
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