2-channel Mic/Line/Instrument Preamp with 3-band EQ
The Warm Audio WA273-EQ 2-Channel Microphone Preamp & EQ is a dual-channel, Class-A microphone preamp and equaliser designed to provide up to 80 dB of gain and 3-band AEQ for engineers, producers, musicians, and vocalists in mobile-recording rigs and home, project, and commercial studios. It features custom Carnhill transformers and is wired and assembled by hand to deliver the sound and functionality of classic British '73-style preamps.
Its inputs include balanced XLR and 1/4" TRS jacks and two front-panel 1/4" TS instrument inputs. Input impedance, polarity, ground lift, and phantom power are switchable. Connect an outboard compressor or equaliser via the 1/4" TS insert send and return jacks. Balanced XLR and 1/4" outputs are fed by output level controls and allow compatibility with most audio interfaces and mixing consoles. The selectable high-pass filter can be set to 50 Hz, 80 Hz, 160 Hz, or 300 Hz for management of unruly bass frequencies.
The inductor-based AEQ boasts selectable frequencies and Blore Edwards dual-concentric potentiometers. The WA273-AEQ is rack-mountable and occupies 2 RU.
Key Features:
- Occupies 2 RU.
- Dual-channel, Class-A mic preamp and 3-band equaliser wired and assembled by hand.
- Created through years of R&D, careful reverse-engineering, and countless hours of auditioning.
- Designed to function and sound like a classic '73-style preamp.
- Fully discrete, transformer-balanced signal path.
- Custom Carnhill transformers saturate sweetly when pushed.
- Tantalum and polystyrene capacitors in the signal path and an output transistor choice that is smooth in high-gain settings.
- Stepped mic pre gain.
- Selectable low-frequency boost or cut at 35 Hz, 60 Hz, 110 Hz, or 220 Hz.
- Selectable mid-frequency boost or cut at 360 Hz, 700 Hz, 1.6 kHz, 3.2 kHz, 4.8 kHz, or 7.2 kHz.
- Selectable high-frequency boost or cut at 10 kHz, 12 kHz, or 16 kHz.
- Inductor-based AEQ and high-pass filter.
- Blore Edwards dual-concentric AEQ switching potentiometers.
- Balanced XLR and 1/4" inputs and outputs.
- Front-panel 1/4" TS instrument inputs.
- 1/4" TS insert sends and returns.
- Output controls with 5-segment LED metres.