Warm Audio WA MPX

The WA-MPX is an authentic reproduction of one of the most revered microphone tube preamps the AMPEX 351. At the height of tape recording this tube preamp became the signature sound in the signal chain of hit recordings by artists including Elvis Presley, Bing Crosby, Les Paul, Nat King Cole - but also artists from the modern era like Kurt Cobain. With premium components, true-to-original circuit design, and tape saturation control, the WA-MPX brings vintage warmth and color to your sound.

To accurately deliver the original tube character, the WA-MPX is hand-assembled with three premium tubes per channel paired with custom-wound true-to-spec transformers made in partnership with CineMag, one of the industry’s most-respected component manufacturers. As a premium tube mic pre, WA-MPX delivers a wide range of analog tone; from clean volumewith preserved clarity for quieter sources to richer distortion that can be driven harder as the tubes are pushed to saturation.

Additionally, the WA-MPX includes selectable Tape Saturation, adding natural compression, harmonic distortion, and focused tone filtering reminiscent of tape machines running at 15IPS. The 2kHz low-pass filter allows you to further shape and focus your tone, dialing in ultimate midrange warmth & punch, while the 80Hz hi-pass filter helps remove unwanted bass noise from unruly sources. Following the Warm Formula of true-to-original tone driven by premium components the WA-MPX delivers the true vintage analog tone that digital plugins just can’t achieve. 

Bryce Young, founder and CEO of Warm Audio : 
 

"With WA-MPX, we’re delivering an analog solution that achieves the sought-after tube tone from the very first tube preamp that pioneered reel-to-reel tape recording. The thing that excited us the most about recreating this legendary tube preamp is the raw power it delivers and the tonal versatility you get from having three tubes per-channel on tap." 

“We are especially excited because this is Warm Audio’s first tube preamp. It is built to deliver incredible range; going from clean analog gain to powerful tube saturation just like the legendary original. They just don’t make them like they used to, so we did.”