Warm Audio WA-MPX – Single-Channel Tube Mic Preamp

A Tube-Based Tone-Shaping Workstation:

As a premium tube mic pre, WA-MPX delivers a wide range of analog tone; from clean volume with preserved clarity for quieter sources to richer distortion that can be driven harder as the tubes are pushed to saturation. The WA-MPX sports a set of critical controls that meet the demands of everyday professional audio use including input impedance switching, +48v, polarity inversion, and input/output gain. In addition to the 80Hz hi-pass filter that can help tame unwanted bass frequencies, the WA-MPX also houses a 2kHz low-pass filter to shave off excess highs for a more vintage tone profile. The classic Warm Audio “tone” control alters the input transformer impedance for extra analog color. A “high gain” control engages an extra 20dB of tube gain to take the WA-MPX all the way to 90dB - very useful on lower output dynamic and ribbon mics. Finally, the Tape Saturation control on the WA-MPX engages a discrete circuit in the signal path adding natural compression, harmonic distortion, and focused tone filtering to emulate the sound of tape machines running at 15IPS, adding just enough imperfection to the signal, especially when used on program material for mixing and mastering.

The WA-MPX is far more than just a pre with the vibe of analog tape, it's a perfectly adaptable and extremely powerful tube mic preamp.

Premium 12AX7 & 12AU7 Vacuum Tubes
Using three premium vacuum tubes, two 12AX7s & one 12AU7 per channel, the WA-MPX delivers both high headroom and harmonically-rich vintage analog tone only found in the most unattainable tube microphone preamps on the market.

American-Made Transformer From CineMag
The history of CineMag transformers goes all the way back to the 1940s with connections to some of the most sought-after audio equipment of the last century. The particular CineMag output transformers inside with WA-MPX pres are custom-wound with a very large core.

• <> 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: 600O Transformer (6000O Rated)
• <> Mic Input With “Tone” Engaged: 150O Transformer (1500O Rated)
• <> Premium (2X) 12AX7 & (1X) 12AU7 Vacuum Tubes
• <> 600O 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