Warm Audio WA-2MPX Tube Preamp

Warm Audio

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Product Code: 3534
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The Warm Audio WA-2MPX Tube Preamp is an authentic reproduction of the most revered microphone tube preamp that pioneered the birth of rock ‘n’ roll & radio-ready hits

The WA-2MPX 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-2MPX authentically reproduces all the analog tone of the original to bring vintage warmth & color to your sound.

Authentic Reproduction Of The Most Revered Tape-Era Tube Mic Preamp
The WA-2MPX is based on the 351-style tube preamplifier found in American tape machines that pioneered the birth of rock ‘n’ roll & radio-ready hits.

Power & Versatility For A Wider Range Of Analog Tone
Delivering an impressive 300v of raw power & 90dB of tube gain, WA-2MPX achieves clean gain & powerful volume, that pushes the tubes to saturate just like the most timeless analog gear.

Premium Components & Handwired Construction For An Authentic Vintage Experience
Hand-assembled with three premium tubes per channel paired with custom-wound true-to-spec USA CineMag transformers, the WA-2MPX authentically reproduces all the analog tone of the original.

Selectable, All-Analog Tape Saturation
WA-2MPX uses discrete analog components that provide compression, saturation, and non-linear frequency response for authentic tape-era reel-to-reel sound at 15IPS.

Hi-Pass (80Hz) & Low-Pass (2kHz) Filters to Refine Tone
The 2kHz low-pass filter allows you to further shape and focus your tone, dialing in ultimate midrange warmth & punch. The 80Hz hi-pass filter helps remove unwanted bass noise from unruly sources.

Hand-Inspected & Tested at Warm Audio HQ in Austin, Texas
Carefully inspected at Warm Audio Headquarters in Austin, Texas by trained engineers & musicians with a passion for helping you sound your best.

Warm Audio WA-2MPX Tube Preamp

  • Authentic Reproduction Of The Most Revered Tape-Era Tube Preamp
  • Fully Discrete, Hand-Built Construction With 3 Tubes Per Channel For Ultimate Analog Tone
  • Selectable Tape Saturation Adds Harmonic Distortion & Natural Compression
  • 90dB Of Analog Tube Gain Per Channel
  • Custom-Wound, Large-Core CineMag USA Transformers
  • Premium (2X) 12AX7 & (1X) 12AU7 Vacuum Tubes
  • 600Ω Output Attenuator
  • Engage High Gain Control For An Added 20db (From 70db To 90db) Of Clean Gain For Low-Output Mics And Low-Volume Sources
  • 48v Phantom Power & Polarity Switch
  • Classic Warm Audio Tone Control That Alters The Input Transformer Impedance Adding Extra Analog Color
  • 80Hz High-Pass Filter To Control Unruly Bass Frequencies
  • 2kHz Low-Pass Filter To Focus Preamp Power & Warmth On Mids For Added Punch
  • VU Meter Level Indication
  • Aluminum Faceplate, Steel Chassis, & Vintage Bakelite-Style Knobs

Warm Audio WA-2MPX Tube Preamp Specifications

  • Mic Input: 600Ω Transformer (6000Ω Rated)
  • Inputs: XLR Mic, TS Instrument & TRS Line.
  • Outputs: XLR / TRS Line Level
  • Frequency Response: 20Hz-20kHz
  • Power: Internal IEC 115v/230v Power Inlet

Warm Audio WA-2MPX Tube Preamp Includes

  • Warm Audio WA-2MPX Tube Preamp
  • Power Cable
  • Manufacturer Warranty

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What We Think

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The Warm Audio WA-2MPX is far more than just a dual-channel microphone preamp — it’s a full-blown studio mojo machine. While working with it in the studio, it became obvious how much ground this box can cover. It handles microphone, instrument DI, and line-level duties with ease, and the wealth of controls lets you shape tone exactly the way you want, whether you’re tracking fresh takes or processing material that’s already been recorded. What we really enjoy about the WA-2MPX is its range. It can stay open and hi-fi when clarity is the goal, shift into punchy, tube-compressed territory when you want attitude, or be pushed into full-on harmonic distortion when a track needs some edge. That flexibility makes it a great choice for everything from singer-songwriter sessions to drum overheads and room mics, stereo keys and synths, guitars, and even processing stereo stems or full mixes. Warm Audio did something genuinely impressive here — the WA-2MPX is inspiring, versatile, and one of those pieces that earns its keep quickly by doing a whole lot of things really well.

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