What type of transformers are used in the WA273-EQ?

The WA273-EQ uses custom UK-made Carnhill transformers. These are chosen to replicate the specific saturation and tonal characteristics of classic British consoles.

How many channels does the WA273-EQ provide?

It is a 2-channel unit, allowing for the simultaneous processing of two independent microphones or instruments, or a single stereo source.

Is the circuitry in the WA273-EQ discrete or IC-based?

The unit features a fully discrete Class-A design. This means it uses individual transistors rather than integrated circuits to process the audio signal.

Does the WA273-EQ include an equaliser?

Yes, this version includes an integrated EQ section. It features dual-concentric switch potentiometers for frequency control and boosting or cutting.

How is the WA273-EQ constructed?

Every unit is fully hand-wired and hand-assembled. This boutique construction method is intended to ensure high performance and longevity.

What kind of high-pass filter is included?

The unit features a 4-position inductor-based high-pass filter. This provides flexibility for removing unwanted low-end rumble while maintaining a musical slope.

What is the typical price for the WA273-EQ?

The typical price for the Warm Audio WA273-EQ is approximately £1,297. Prices may vary slightly depending on the retailer and current promotions.

How does the sound of the WA273-EQ compare to standard audio interface preamps?

Unlike the transparent and often thin sound of standard interface preamps, the WA273-EQ is 'full-bodied' and 'defined'. The transformers add a specific harmonic character and weight to the signal.

Can the WA273-EQ be used for stereo recording?

Yes, its two-channel design makes it perfectly suited for stereo applications. This includes recording overheads, keyboards, or stereo room microphones.

What makes the EQ section 'vintage-style'?

The EQ section is based on classic inductor-based designs and uses dual-concentric knobs. This layout and circuitry are hallmarks of the iconic British channel strips of the 1970s.

Is the WA273-EQ a rack-mounted device?

Yes, it is designed to be mounted in a standard 19-inch equipment rack. It occupies two rack units (2U) of space.

How does it differ from the standard WA273?

The WA273-EQ includes a comprehensive 3-band equaliser section on each channel. The standard WA273 provides the preamplification and high-pass filter but lacks the EQ controls.

Gear article

Warm Audio WA273-EQ

The Warm Audio WA273-EQ is a premium-grade, two-channel microphone preamplifier and equaliser based on classic British console circuitry. It features custom UK-made Carnhill transformers and a fully discrete Class-A design to provide a full-bodied, vintage-inspired sound for professional recording applications.

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Background and Design

The Warm Audio WA273-EQ was developed to bring the sound of legendary '73-style' British preamplifiers to a wider market without compromising on component quality. Historically, these preamplifiers have been a staple in professional studios for decades due to their unique harmonic character.

Warm Audio emphasises a boutique construction process for this unit. Each WA273-EQ is fully hand-wired and hand-assembled, using discrete components rather than integrated circuits. This approach ensures a shorter, cleaner signal path and adheres to the construction methods used in high-end vintage hardware.

Key Features and Circuitry

The WA273-EQ is built around custom-wound Carnhill transformers sourced from the United Kingdom, which are critical in achieving the specific saturation and 'weight' associated with its design lineage.

The unit includes several professional control features: * Discrete Class-A Electronics: Ensures high-fidelity signal reproduction. * Integrated EQ Section: Features dual-concentric switch potentiometers for precise frequency selection and boost/cut controls. * Inductor-Based High-Pass Filter: A 4-position filter allows for effective low-end management. * Hand-Wired Signal Path: Minimises interference and maintains signal integrity.

Sound Character

The sonic profile of the WA273-EQ is described as full-bodied and defined. Due to the Class-A design and transformer-balanced inputs and outputs, the unit imparts a subtle harmonic coloration that adds warmth and depth to digital recordings. The equaliser section allows for further sculpting, providing a musical tone that remains smooth even at more extreme settings.

Suitability and Use Cases

This preamplifier is suited for engineers and producers who require a high-quality stereo front-end for their recording system. Its dual-channel configuration makes it ideal for stereo micing techniques, such as drum overheads or acoustic pianos, while the integrated EQ provides tools for tracking and mixing in a single rack unit. It serves as a professional alternative for those seeking the '73 sound' at a competitive price point compared to vintage or hand-built boutique equivalents.

Comparison to Alternatives

Within the market for '73-style' preamps, the WA273-EQ competes with units such as the Behringer 1273, which also offers a two-channel mic preamp and EQ configuration. While utilitarian options like the TritonAudio FetHead Phantom or the sE Electronics DM2 TNT provide simple gain boosts for microphones, the WA273-EQ provides a complete tonal processing solution with its active EQ and transformer coloration. Unlike pedal-format preamps like the Peavey Decade or the Boss BP-1W, the WA273-EQ is a dedicated 19-inch rack-mount studio tool designed for high-voltage audio fidelity.

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Frequently asked questions

What type of transformers are used in the WA273-EQ?: The WA273-EQ uses custom UK-made Carnhill transformers. These are chosen to replicate the specific saturation and tonal characteristics of classic British consoles.
How many channels does the WA273-EQ provide?: It is a 2-channel unit, allowing for the simultaneous processing of two independent microphones or instruments, or a single stereo source.
Is the circuitry in the WA273-EQ discrete or IC-based?: The unit features a fully discrete Class-A design. This means it uses individual transistors rather than integrated circuits to process the audio signal.
Does the WA273-EQ include an equaliser?: Yes, this version includes an integrated EQ section. It features dual-concentric switch potentiometers for frequency control and boosting or cutting.
How is the WA273-EQ constructed?: Every unit is fully hand-wired and hand-assembled. This boutique construction method is intended to ensure high performance and longevity.
What kind of high-pass filter is included?: The unit features a 4-position inductor-based high-pass filter. This provides flexibility for removing unwanted low-end rumble while maintaining a musical slope.
What is the typical price for the WA273-EQ?: The typical price for the Warm Audio WA273-EQ is approximately £1,297. Prices may vary slightly depending on the retailer and current promotions.
How does the sound of the WA273-EQ compare to standard audio interface preamps?: Unlike the transparent and often thin sound of standard interface preamps, the WA273-EQ is 'full-bodied' and 'defined'. The transformers add a specific harmonic character and weight to the signal.
Can the WA273-EQ be used for stereo recording?: Yes, its two-channel design makes it perfectly suited for stereo applications. This includes recording overheads, keyboards, or stereo room microphones.
What makes the EQ section 'vintage-style'?: The EQ section is based on classic inductor-based designs and uses dual-concentric knobs. This layout and circuitry are hallmarks of the iconic British channel strips of the 1970s.
Is the WA273-EQ a rack-mounted device?: Yes, it is designed to be mounted in a standard 19-inch equipment rack. It occupies two rack units (2U) of space.
How does it differ from the standard WA273?: The WA273-EQ includes a comprehensive 3-band equaliser section on each channel. The standard WA273 provides the preamplification and high-pass filter but lacks the EQ controls.