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. With premium components and true-to-original circuit design, WA-2MPX authentically delivers the iconic analog warmth and tape-era tube tone that is still chased by today’s modern artists.

Popular Uses
  • Wide Range of Preamp Tones On Tap
    • Wide-open & clean tube tone delivered by 3 tubes per channel
    • Dial in natural harmonic distortion & compression as tubes are pushed
    • Flip the “Tape Sat” switch to engage all-analog tape saturation
    • Vintage sound + modern connectivity for use in any hybrid rig
Features
  • 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.
Tech Specs
  • 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
  • Mic Input: 600Ω Transformer (6000Ω Rated)
  • Mic Input With “Tone” Engaged: 150Ω Transformer (1500Ω Rated)
  • 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
  • Inputs: XLR Mic, TS Instrument & TRS Line.
  • Outputs: XLR / TRS Line Level
  • VU Meter Level Indication
  • Frequency Response: 20Hz-20kHz
  • Aluminum Faceplate, Steel Chassis, & Vintage Bakelite-Style Knobs
  • Internal IEC 115v/230v Power Inlet

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
Brand
Model
  • WA-2MPX 2-Channel Microphone Preamp
Finish
  • Silver
Categories
Year
  • 2023 - Present
Electronics
  • Analog
  • Solid State
Format
  • 19-inch Rackmount
Number of Analog Outputs
  • 2
Number of Analog Inputs
  • 2
Number of Channels
  • 2

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Tree of Sound Shop

Nazareth, PA, United States
Joined Reverb:2014

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