Pricing and availability

We compare 600+ stores and found this item at 10 stores. Prices updated .

Sweetwater
5.0 (47)
$1,399.00 $1,199.00 $200.00 · All time low
Guitar Center
5.0 (1)
$1,399.00
Amazon
4.6 (9)
$1,199.00 $1,160.48 $38.52 New
$1,099.99 Used (Like New)
Reverb
5.0 (11)
$1,199.00 New
$900.00 Used
Musician's Friend
5.0 (9)
$1,399.00
zZounds
5.0 (1)
$1,399.00
B&H
$1,399.00 $1,199.00 $200.00 · All time low
Thomann
4.9 (28)
$1,168.00 $1,166.00 $2.00 · All time low
Gear4Music
£1,044.00
Vintage King
$1,199.00

Price History

Based on price data from 8 merchants for "Warm Audio WA-412". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Step into the realm of sonic excellence with the Warm Audio WA-412, a masterpiece that encapsulates the quintessence of classic American console preamps. Renowned for its robust punch and pristine open top-end, the WA-412 is a perfect blend of vintage charm and modern reliability. Engineered for the discerning ear, this unit boasts a 1RU design housing four channels of premium-grade audio amplification.

At its core, the WA-412 features fully discrete socketed 6-pin op-amps and custom-wound Altran USA input and output transformers, meticulously chosen to deliver a sound that's both expansive and richly detailed. Whether you're tracking drums, guitars, vocals, or bass, each channel offers a depth and clarity that can only be described as audiophile grade. The unique transformers, developed in collaboration with Altran, extend the low frequency response, ensuring that your recordings capture the full spectrum of sound with an authentic vintage flair.

But it's not just about the sound. The WA-412 is designed with flexibility in mind, featuring an output trim on each channel for precise control over your signal levels. This, coupled with the Tone switch, allows you to toggle between a punchier console tone and a more neutral, open sound, giving you the creative freedom to sculpt your recordings to perfection.

The Warm Audio WA-412 doesn't just reproduce the iconic tones of yesteryear; it brings them into the modern studio environment, combining timeless sound characteristics with contemporary functionality. Whether you're a seasoned engineer or a home studio enthusiast, the WA-412 is engineered to inspire and elevate your recordings.

Key Features:

  • Fully discrete socketed 6-pin op-amps for high headroom and low distortion
  • Custom-wound Altran USA input and output transformers on each channel
  • 65dB of gain with a 20dB pad for mic and instrument inputs
  • Tone button for switching input impedance, affecting both mic and DI inputs
  • Phantom power (+48 volts) switchable per channel
  • LED metering per channel for easy visual monitoring
  • Output trim knob per channel for precise level control
  • Internal power supply with a grounded, 3-pin IEC power cable

Owner's manual

Warm Audio WA-412 User Manual

Product specs

Preamp Type Solid State
Number of Channels 4
Phantom Power Yes
Analog Inputs 4 x XLR (mic), 4 x 1/4" (Hi-Z)
Analog Outputs 4 x XLR, 4 x 1/4"
Rack Spaces 1U

FAQs

What is the Warm Audio WA-412 based on?

The Warm Audio WA-412 is based on the classic API 312 preamp design, known for its punchy and clear sound, commonly used in American recording consoles of the 1970s.

How many channels does the Warm Audio WA-412 have?

The Warm Audio WA-412 features four channels, allowing you to simultaneously process multiple microphones or instruments.

Does the Warm Audio WA-412 provide phantom power?

Yes, the Warm Audio WA-412 offers phantom power, which is essential for powering condenser microphones.

What kind of inputs and outputs does the Warm Audio WA-412 have?

The WA-412 includes 4 XLR mic inputs, 4 quarter-inch Hi-Z inputs, and 4 XLR and quarter-inch outputs, providing versatile connectivity for various studio setups.

Is the Warm Audio WA-412 suitable for both microphones and instruments?

Yes, the WA-412 is equipped with both XLR and Hi-Z inputs, making it suitable for use with microphones as well as instruments like guitars and basses.

Production Expert

Production Expert

Review WA 412 Quad Microphone Preamp

Video thumbnail for Review   WA 412 Quad Microphone Preamp by Production Expert

Review WA 412 Quad Microphone Preamp

Production Expert

Production Expert

Video thumbnail for API 3124V vs Warm Audio WA-412 mic preamp comparison recording Sonor drums by digitaldrumming

API 3124V vs Warm Audio WA-412 mic preamp comparison recording Sonor drums

digitaldrumming

digitaldrumming

Video thumbnail for Warm Audio WA-412 four channel preamp drum recording demo by digitaldrumming

Warm Audio WA-412 four channel preamp drum recording demo

digitaldrumming

digitaldrumming

Video thumbnail for Warm Audio // WA-412 Four Channel Mic Pre "Getting Started" by Warm Audio

Warm Audio // WA-412 Four Channel Mic Pre "Getting Started"

Warm Audio

Warm Audio

Video thumbnail for Warm Audio // Atlas Sound Review - Mike Defaria - WA-412 Four Channel Mic Pre by Warm Audio

Warm Audio // Atlas Sound Review - Mike Defaria - WA-412 Four Channel Mic Pre

Warm Audio

Warm Audio

Video thumbnail for Strange Comparison: Warm Audio WA-412 Preamp Vs Focusrite Scarlett by Cuomo Music Creation

Strange Comparison: Warm Audio WA-412 Preamp Vs Focusrite Scarlett

Cuomo Music Creation

Cuomo Music Creation

Reviews

PROS

  • Delivers a warm, analog sound that enhances drum recordings

  • Comparable, if not superior, to high-end units like API 3124 in tone and build

  • Offers versatile tonal options with the "tone" switch for different instruments

  • High gain makes it ideal for use with dynamic mics without needing extra boosters

  • Clean and punchy output, allowing tracks to sit well in mixes

  • Provides significant tonal flexibility, from clean to gritty, by adjusting output trims

  • Solid build quality, described as "built like a tank"

  • Offers great value with professional preamp quality at a lower cost

  • Can produce a wide range of tones, beneficial for various musical styles

  • Enhances clarity and quality of recordings, especially for drums and guitars

CONS

  • Some units may have tighter dials and slightly wonky buttons

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Warm Audio WA-412.

Comparisons

  • The WA-412 is compared to the API 512, noted for a more mid-forward sound, unlike the rounder Neve-style preamps.

    Source

Features and functionality

  • The WA-412 may lose more low end when driven hard compared to CAPI and API preamps.

    Source
  • The WA-412 is praised for its punchy and detailed midrange, with tone button engagement enhancing versatility for different applications.

    Source
  • The WA-412's outputs use balanced line outs, suitable for 1/4” line level inputs on interfaces like the Soundcraft Ui24R.

    Source

Setup and maintenance

  • A visual inspection for inconsistencies between channels can help diagnose issues like low output or lack of low end.

    Source
  • A signal path test using a multimeter can identify components in a faulty channel that don't match a working one.

    Source
  • Balanced signal loss can lead to a 6dB drop, indicating a potential single-ended issue.

    Source
  • One user resolved a non-working channel by reseating internal cables and the opamp board, indicating potential loose connections as a common issue.

    Source

Use cases and applications

  • The WA-412 excels in clipping snare drums, providing a highly recommended application for this preamp.

    Source
  • The WA-412 is favored for electric guitar and B3 organ in a three-mic setup, with the tone button engaged for optimal sound.

    Source
  • For drum recording, connecting three WA-412 units to a multi-channel interface like the Soundcraft Ui24R allows integration with a DAW for 12-channel recording.

    Source

User experience

  • Owners report that Warm Audio's customer service is accommodating, allowing users to troubleshoot issues internally without voiding warranties.

    Source

Build quality

  • Issues with cable headers not being seated properly were resolved by simply disconnecting and reconnecting, suggesting minor assembly oversights.

    Source

Software and compatibility

  • The Soundcraft Ui24R can handle 12 channels via its 10 combo XLRs and 2 dedicated 1/4” line level inputs when using the USB-B port.

    Source

Critic Reviews

Warm Audio WA-412

soundonsound.com

Warm Audio's WA-412 delivers solid performance and excellent sound at an attractive price point, closely mimicking the character of its API counterpart. Its stepped gain controls and output trim offer versatility, making it a valuable asset for any studio setup. However, the lower output level may frustrate professionals accustomed to higher-end models, and its aesthetics leave something to be desired. While it shines in functionality, those seeking top-tier design might look elsewhere. Overall, the WA-412 is an impressive choice for musicians needing quality preamps without breaking the bank.

positive

Warm Audio WA-412 Review - Bringing Back the Soul of the 70s

musictech.com

Warm Audio's WA-412 channels vintage API vibes with impressive punch and clarity, making it a solid choice for modern pop and rock. Its four channels and flexible tone control deliver a rich, forward sound, ideal for those seeking sonic warmth in their recordings. However, it's not without drawbacks; the preamp may lack transparency for acoustic genres and can't quite compete with high-end valve alternatives for certain vocal applications. Overall, the WA-412 shines in the right contexts, proving to be a compelling option for producers looking to add a bit of classic character to their tracks.

positive

Review of the Warm Audio WA-412 API preamp – Making A Scene!

makingascene.org

The Warm Audio WA-412 shines with its solid build and exceptional sound quality, delivering a punchy low end and crisp high frequencies reminiscent of the iconic API 3124. Users rave about the dramatic improvement in clarity and fullness for drums, bass, and guitars, making this preamp a standout choice for home studios. However, while its straightforward design is a plus, some might find the lack of advanced features limiting. Despite this, the WA-412 has earned its place as a favorite among recording professionals, proving to be a smart investment for those seeking to elevate their sound.

positive

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Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

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