Warm Audio WA73-EQ
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What you need to know
What you need to know
- Authentic British 1073 Sound: discreet Class A stage, Carnhill transformers, and inductance EQ for an iconic pop/rock character.
- Up to 80 dB of Gain with rotary selector, ideal for ribbons, dynamics, and distant miking.
- Musical 3-band EQ and inductance high-pass filter, with extended high frequencies at 12 and 16 kHz.
- Modern Connectivity: rear and front mic inputs, instrument DI, insert, balanced line, and universal internal power supply.
Manufacturer Information
Warm Audio
https://shop.warmaudio.com
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Safety manager:
Mogar Music France
Email: info@mogarmusic.fr
Address:
A Faithful Tribute to the 1073, Designed for Today
Warm Audio designed the "WA73" series to make the legendary character of the 1073 accessible while preserving the spirit of the original circuit. The WA73-EQ is the mono channel version with EQ, hand-assembled and wired, equipped with English Carnhill transformers and Blore Edwards switches, delivering a dense, detailed, and musical sound both in the studio and on stage.
Who Is It For and What Are Its Uses?
Sound engineers, artistic producers, demanding home studios: this preamp/EQ is aimed at those who want a strong analog signature right from the source. Pop/rock vocals, electric guitars, drums, basses in DI or overheads benefit from a rich harmonic grain, beautiful low-mid depth, and silky highs that are easy to shape.
Class A Circuit, Inductance EQ, and Modern Workflow
The Class A preamplification stage offers comfortable gain reserve and progressive saturation when pushing the input level, while the output level control allows adjusting the color without clipping the converters. The "Tone" switch modifies the input impedance of the transformer to adapt the response with different microphones, especially ribbons.
Expanded Musical Equalization
The 3-band inductance EQ follows the British classic approach while adding high frequencies at 12 and 16 kHz compared to the "Vintage 1073," for more air and brilliance when needed. The four-position inductance high-pass filter helps quickly clean unwanted lows right at the source.
Complete Connectivity and Easy Integration
Rear and front XLR mic inputs, balanced line input, Send/Return insert, and front instrument DI facilitate all recording and re-amping setups. Polarity, 48 V phantom power, and Ground Lift switches secure integration in both studio and touring environments.
Technical specifications
| Number of channels | 1 | Rack unit | 1 |
| EQ | 3 channels | ||
| "Tone" switch | modifies transformer input impedance | Four-position switchable inductance high-pass filter | 50, 80, 160, 300 Hz |
| Bass boost/cut | 35, 60, 110, 220 Hz | Frequency response | 20 Hz - 20 kHz (+/- 0.5 dB) |
| Mid boost/cut | 360, 700, 1600, 3200, 4800, 7200 Hz | Weight | 4.8 kg |
| Treble boost/cut | 10, 12, 16 kHz (additional frequencies compared to the Vintage 1073) | ||
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Customer reviews
Based on 2 reviews
- 5 stars, 2 reviews
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- 3 stars, 0 reviews
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good hardware but can color the sound a bit too much if set incorrectly
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Meets my expectations
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Questions frequently asked
Is the Warm Audio WA73-EQ suitable for ribbon microphones?
The "Tone" switch changes the transformer's input impedance to tailor the response for different microphones, including ribbon models. The 48V phantom power is switchable for microphones that require it.
What equalization frequencies are available?
The inductive EQ offers four bass frequencies: 35, 60, 110, and 220 Hz. The mids can be selected across six positions from 360 to 7200 Hz, while the highs operate at 10, 12, or 16 kHz.
Can the preamp be driven into saturation without saturating the converters?
The class A preamp circuit can be pushed at the input to achieve progressive saturation. An output level control then allows adjustment of the signal level sent to the converters.
What inputs and outputs are available on this preamp?
Connectivity includes front and rear XLR mic inputs, a balanced line input, and a front panel instrument DI. A Send/Return insert loop allows integrating an external processor, and a Ground Lift is provided to facilitate installation.
What high-pass filter is integrated into the WA73-EQ?
A switchable inductive high-pass filter offers positions at 50, 80, 160, and 300 Hz. It helps reduce unwanted low frequencies right at the source.
