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Warm Audio WA-MPX

Single-Channel Tube Microphone Preamp

Item # 87833

Retail Price
$899
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$749.00
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Manufacturer
Warm Audio

The Warm Audio WA-MPX is an authentic reproduction of the most revered microphone tube preamp that pioneered the birth of rock 'n' roll & radio-ready hits. During the golden-era of tape recording, this style of vintage tube preamp became the signature sound in the signal chain of hit recordings including Elvis Presley, Les Paul, and Bing Crosby - and is a sound that is still pursued by today’s biggest artists. With premium components, true-to-original circuit design, and tape saturation control, the WA-MPX authentically reproduces all the analog tone of the original to bring vintage warmth and color to your sound.

Based on the 351-style tube preamplifier found in American tape machines that pioneered the birth of rock ‘n’ roll & radio-ready hits
Delivering an impressive 300V of raw power and 90 dB of tube gain, WA-MPX achieves clean gain and powerful volume, that pushes the tubes to saturate just like the most timeless analog gear
Hand-assembled with three premium tubes per channel paired with custom-wound true-to-spec USA CineMag transformers, the WA-MPX authentically reproduces all the analog tone of the original
Discrete analog components provide compression, saturation, and non-linear frequency response for authentic tape-era reel-to-reel sound at 15IPS
2 kHz low-pass filter allows you to further shape and focus your tone, dialing in ultimate midrange warmth and punch, while the 80 Hz hi-pass filter helps remove unwanted bass noise from unruly sources
Carefully inspected at Warm Audio Headquarters in Austin, Texas by trained engineers and musicians with a passion for helping you sound your best



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MPN: WA-MPX
UPC: 850031640160

  • 90 dB analog tube gain per channel
  • Custom-wound large-core CineMag USA transformers
  • Mic input: 600 Ω transformer (6000 Ω rated)
  • Mic input with "Tone" engaged: 150 Ω transformer (1500 Ω rated)
  • Premium (2x) 12AX7 and (1x) 12AU7 vacuum tubes
  • 600 Ω output attenuator
  • Engage high gain control for an added 20 dB (from 70 dB to 90 dB) of clean gain for low-output mics and low-volume sources
  • 48V phantom power and polarity switch
  • Classic Warm Audio tone control that alters the input transformer impedance adding extra analog color
  • Inputs: XLR microphone, TS instrument and TRS line
  • Outputs: XLR/TRS line level
  • VU meter level indication
  • Frequency response: 20 Hz - 20 kHz
  • Aluminum faceplate, steel chassis, and vintage Bakelite-style knobs
  • Internal IEC 115V/230V power inlet



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