Warm Audio WA273 - Dual Channel '73 Excellence - Crafting the Iconic '73 Sound
The Warm Audio WA273 is a tribute to the renowned '73-style microphone preamps, revered in pop and rock production for decades. Part of the WA73 Family, the WA273 is a dual-channel preamp that meticulously emulates the tonal characteristics and design of its legendary predecessors. Known for their sweet, character-rich sound, '73-style preamps are considered indispensable in professional recording and live sound environments.
Design Philosophy: Authenticity Meets Modern Reliability
Warm Audio's commitment to authenticity in the WA273’s design and performance is evident. The goal was not just to replicate the vintage tone but to deliver a sonically accurate reproduction that would meet the high expectations set by the original '73-style preamps. After extensive research and development, the WA273 emerged as a preamp that combines the charm of the past with modern functionality, making it a versatile tool for studios and live applications.
Features and Technical Excellence
- Dual Channel, Class A, '73-Style British Microphone Preamp
- Custom UK-made Carnhill Transformers for authentic, fluid sound reproduction
- Hand-wired and hand-assembled for optimal signal integrity
- Impressive 80dB of gain, with a resistor-stepped gain switch for precise control
- Tone Button to alter input transformer impedance, offering tonal variations
- Polarity switch and 48V phantom power for versatility with various microphones
- 4-position inductor-based high-pass filter with options at 50, 80, 160, and 300 Hz
- Versatile connectivity with XLR mic input, line-level TRS input, and TS send/receive insert jacks
- Direct Instrument Input for recording guitars, basses, and other high-impedance sources
- Balanced XLR & TRS line-level outputs for seamless integration with other studio gear
- Frequency response from 20Hz to 20kHz, ensuring a wide sonic range
- Rack-mountable design with a robust 19" form factor
- Internal IEC power inlet with switchable 115V/230V for global compatibility
The Warm Audio Difference
The WA273 stands out for its use of tantalum and polystyrene capacitors in the signal path, and a carefully selected output transistor. These choices contribute to the preamp’s smoother sound at high gain settings, differentiating it from contemporary '73-style designs. The WA273 is a testament to Warm Audio's philosophy of offering unparalleled quality and tone at an accessible price point, making legendary sounds available to a wider range of artists and engineers.
