Warm Audio WA-MPX

The WA-MPX is designed to deliver the rich, harmonic warmth associated with mid-century recording gear. By using three vacuum tubes and custom-wound CineMag transformers, it adds a distinct vintage weight and saturation to your signal that digital interfaces often lack.

The selectable tape saturation adds natural compression and harmonic distortion, mimicking the behavior of classic tape machines. It is particularly effective for smoothing out transients on vocals or adding grit and glue to instruments like bass and electric guitar.

Yes, it is well-suited for low-output mics. The unit offers up to 90 dB of total gain, including a high-gain boost switch that provides an extra 20 dB, making it capable of driving even the most demanding ribbon or dynamic microphones without excessive noise.

Absolutely. Beyond the tube circuitry, you have access to switchable input impedance, an 80 Hz high-pass filter, and a 2 kHz low-pass filter. These controls allow you to sculpt the frequency response and sonic color at the source, reducing the need for heavy EQ later.

Yes, it features switchable +48V phantom power, allowing you to use it with standard condenser microphones as well as dynamic and ribbon mics.

The tone control adjusts the input impedance, which changes how the preamp interacts with your microphone's output. Changing this setting alters the frequency response and transient behavior, giving you a wider palette of tonal textures from the same microphone.