Warm Audio WA-MPX

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Warm Audio WA-MPX

Warm Audio

WA-MPX

4.6 Expert Rating

Product Info

Article Number: 562525
Model: WA-MPX
Category: Preamps
Price: $812.90

* Prices may vary. Check retailer for current pricing and availability.

The WA-MPX is a fantastic single-channel preamp for adding serious vibe to vocals or instruments. The combination of discrete circuitry, CineMag transformers, and those three tubes gives it a really pleasing, saturated tone—it’s perfect for anyone chasing that classic, analog warmth without the price tag of a vintage console. It's a great choice for singer-songwriters, home studios, or anyone wanting to add some character to their recordings.

Product Description

  • Warm Audio WA-MPX
  • 1-Channel Microphone and Instrument Preamp
  • Fully discrete
  • hand-built design with 3 tubes per channel
  • Tape saturation adds harmonic distortion and compression
  • 90 dB gain
  • CineMag USA transformers
  • High quality (2x) 12AX7 and (1x) 12AU7 vacuum tubes
  • High Gain control activates the third tube in the circuit for an additional 20 dB (from 70 dB to 90 dB)
  • 48 V phantom power and polarity switch
  • "Tone" circuit changes the impedance of the input transformer
  • 80 Hz high-pass filter
  • 2 kHz low-pass filter
  • Inputs: XLR microphone input
  • TS jack instrument input and TRS jack line input
  • Outputs: XLR / TRS line level
  • VU meter level meter
  • Frequency response: 20 Hz - 20 kHz
  • Dimensions (W x D x H): 483 x 179 x 89 mm
  • Weight: 3.7 kg
PROS
  • • Discrete circuitry and CineMag transformers deliver a thick, vintage warmth.
  • • Three tubes per channel offer substantial gain and harmonic saturation.
  • • The 'Tone' circuit subtly alters input impedance, shaping signal character.
  • • High-pass filter and low-pass filter provide useful tonal shaping options.
CONS
  • • The hefty weight (nearly 8 lbs) makes it less portable for mobile setups.
  • • Limited to a single channel, restricting use in multi-mic recording scenarios.
  • • Tube-driven design means potential for noise if gain staging isn't meticulous.

Product Video

Key Features

Channels 1
Preamp Type Tube (Vacuum Tube)
Gain Range 70 - 90 dB
Phantom Power 48 V
Connections XLR, TS, TRS
Weight 3.7 kg

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Frequently Asked Questions

It subtly alters the impedance, which can slightly color the signal—think a gentle shift in the low-end or high-end response depending on the source.
It’s a controllable saturation; you can absolutely use it clean with the gain lower, or crank it for a more pronounced, tape-like compression effect.
The discrete hand-built design and CineMag transformers suggest a commitment to quality, putting it a step above many more budget-friendly options – the construction feels solid.

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