Warm Audio WA-412 4-Channel Microphone Pre-Amp with DI

SKU: WA412 MFR: WA-412
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Key Features

  • Capture pristine audio with this 4-channel microphone pre-amp, perfect for studio recording.
  • Achieve low noise recordings thanks to the WA-412's <-90dB self-noise spec; ideal for vocals.
  • Shape your sound with the tone button, switching input impedance for unique mic pre-amp tones.
  • Enjoy versatile connectivity with XLR & TRS outputs on this robust studio preamplifier.
  • Dial in the perfect gain range with -20dB pads on both mic and instrument DI inputs.
  • Experience superior build quality in a space-saving 1U rack design for your recording setup.
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Warm Audio 4-Channel Discrete Specifications

  • Inputs

    4x Microphone XLR & 4x Active Instrument 2Meg ohm HI-Z

  • Outputs

    4x Transformer balanced XLR & 4x TRS

  • Preamp Type

    solid state

  • Number of channels

    4

  • Tone button

    Input impedance switches from 600 ohms to 150 ohms (affects the tone of both the mic and HI-Z inputs)

  • -20db pad

    pads both mic and instrument DI inputs

  • Self noise

    <-90dB (nominal)

  • Frequency response

    20hz to 20khz <+/-0.25dB (TONE button out), 20hz to 20khz +/-2dB (TONE button in)

  • phantom power

    +48 volt

  • metering

    LED metering

  • power supply

    internal (grounded, 3 pin IEC cord)

  • rack space

    1 U

  • UPC Code

    638142859295

27 Accessories for Warm Audio WA-412 4-Channel Microphone Pre-Amp with DI

  • All Accessories (27)
  • Cases, Bags & Sleeves (1)
  • Cables & Adapters (25)
  • Bags & Cases (1)

About Warm Audio 4-Channel Discrete

After years of meticulous design and engineering, the WA-412 4-Channel Microphone Pre-Amp with DI emerges as a high-quality, professional-grade audio equipment that encapsulates the classic American console preamps in a sleek, 1RU design. Often hailed as "the sound of Rock n' Roll," this preamp delivers a BIG punchy low end and smooth open top end, making it a versatile and reliable choice for both recording studios and live performance settings.

The WA-412 is equipped with fully discrete socketed 6-pin opamps and custom-wound Altran USA input and output transformers, ensuring nothing is left to be desired in terms of audio quality and performance. This preamp is not just about delivering world-class tone across multiple channels, but also about offering an affordable solution for audio professionals and enthusiasts alike.

The inspiration behind the WA-412 stems from the founder's own experiences in the recording studio. Recognizing the need for more high-end mic pre's and the importance of high-quality signal recording, the WA-412 was designed to be a serious workhorse in both professional and home studios.

The WA-412 boasts a range of features expected from a preamp of this caliber, and more. Each channel comes with an Output Trim for precise control and creative gain structuring. A unique Tone switch (transformer input impedance) is added to each channel, allowing users to switch between a warm, punchy classic console tone and a more open, neutral sound.

The WA-412 utilizes a fully discrete socketed 6-pin opamp in each channel, known for its high headroom and low distortion characteristics. This contributes significantly to the coveted sound of these classic console preamps. In collaboration with high-end transformer manufacturer, Altran, unique transformers were created to extend the low frequency response of the design. These transformers, made in the USA, use a vintage winding technique that produces a distinct, smooth, and open character.

In conclusion, the WA-412 4-Channel Microphone Pre-Amp with DI is a testament to careful component selection and design, resulting in an amazing four-channel 'workhorse' preamp/DI that performs at the highest levels while adding a touch of vintage console magic to your signal.

Warm Audio 4-Channel Discrete Features

  • 4 Channel Microphone Preamplifier + Instrument DI
  • Fully discrete, transformer coupled, through-hole component topology
  • Altran USA custom wound, premium input and output transformers
  • X520 discrete op-amp in every channel, socketed for convenience.
  • Can be user-replaced with most 6 pin, discrete op-amps for varying flavor & tone
  • 65db of gain
  • Output trim knob for precise level control and tone sculpting
  • Internal power supply

Product Documents

User Manual

Key Features

  • Capture pristine audio with this 4-channel microphone pre-amp, perfect for studio recording.
  • Achieve low noise recordings thanks to the WA-412's <-90dB self-noise spec; ideal for vocals.
  • Shape your sound with the tone button, switching input impedance for unique mic pre-amp tones.
  • Enjoy versatile connectivity with XLR & TRS outputs on this robust studio preamplifier.
  • Dial in the perfect gain range with -20dB pads on both mic and instrument DI inputs.
  • Experience superior build quality in a space-saving 1U rack design for your recording setup.

What's in the box:

  • Warm Audio WA-412 4 Channel Microphone Pre-Amp with DI
  • Warm Audio One-Year Limited Warranty