Pricing and availability

We compare 600+ stores and found this item at 9 stores. Prices updated .

Sweetwater
5.0 (17)
$692.01 $549.00 $143.01 · All time low
Guitar Center
5.0 (1)
$699.00
Amazon
4.2 (29)
$521.55
Musician's Friend
$699.00 $549.00 $150.00 · All time low
zZounds
5.0 (6)
$699.00
B&H
4.7 (3)
$699.00 $549.00 $150.00 · All time low
Thomann
4.7 (21)
$574.00
Gear4Music
£565.00
Vintage King
5.0 (1)
$699.00 $549.00 $150.00 · All time low

Price History

Based on price data from 7 merchants for "Warm Audio TB12 Tone Beast Black". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Ignite your audio creativity with the Warm Audio TB12 Tone Beast Black, a versatile one-channel microphone and instrument preamp. This dynamic piece of studio gear is designed to deliver a broad palette of tonal colors, making it an essential tool for both professional and home-based musicians.

The Warm Audio TB12 Tone Beast Black is a mic preamp that's capable of producing a range of characteristic sounds. It is designed with top-tier CineMag transformers and multiple discrete signal paths that offer a big, bold, fully-professional sound. It's not just a preamp that sounds great, but it's one that likes to be pushed. When driven into harmonic distortion, the unique character of each component becomes apparent, providing a different taste to your mix.

The TB12's real magic lies in its multiple discrete signal paths. With the flip of a switch, you can select between different transformers, op-amps, and capacitors, thus enjoying a myriad of tones. The two op-amps and two output transformers at the flip of their switches are designed to impart character. The 100% steel output transformer colors the signal more than the 50% nickel transformer when pushed. However, both are designed to impart character.

The Tone Beast is customizable, allowing you to source and swap in other op-amps. Whether you're recording live drums or more than one track at a time, the Warm Audio TB12 Tone Beast Black offers a top-tier performance, delivering depth, vibrancy, and character to your sound.

Key Features:

  • Discrete 312 preamp design with CineMag transformers
  • Multiple discrete signal paths
  • Choice of Melcor 1731 or Jensen 918 op-amps
  • Choice of 100% steel or 50% nickel output transformers
  • Transformer bypass switch for ultra-clean character
  • Tone switch for variable mic impedance
  • 80Hz highpass filter and 20dB pad
  • Output attenuation for saturation flexibility
  • Insert for inline processors
  • LED VU meter for level monitoring.

Owner's manual

Warm Audio TB12 Tone Beast Black User Manual

Product specs

Preamp Type Solid State
Number of Channels 1
Phantom Power Yes
Pads -20dB
Polarity Switch Yes
EQ 80Hz Highpass Filter
Analog Inputs 2 x XLR (mic), 1 x 1/4" TRS (Hi-Z), 1 x 1/4" (line in), 1 x 1/4" TS (receive)
Analog Outputs 1 x XLR, 1 x 1/4" TRS, 1 x 1/4" TS (send)
Channel Inserts Yes
Rack Spaces 1U
Power Source Standard IEC AC cable
Height 1.75"
Width 19"

FAQs

What is the primary function of the Warm Audio TB12 Tone Beast Black preamp?

The Warm Audio TB12 Tone Beast Black is a single-channel solid-state microphone preamp designed to enhance the sound quality of your recordings with versatile tone-shaping options.

Does the Warm Audio TB12 Tone Beast Black offer phantom power for condenser microphones?

Yes, the Warm Audio TB12 Tone Beast Black provides phantom power, making it compatible with condenser microphones requiring external power.

What kind of input and output connections are available on the Warm Audio TB12 Tone Beast Black?

The preamp includes multiple input options: 2 x XLR (mic), 1 x 1/4" TRS (Hi-Z), 1 x 1/4" (line in), and 1 x 1/4" TS (receive). For outputs, it features 1 x XLR, 1 x 1/4" TRS, and 1 x 1/4" TS (send).

Does the Warm Audio TB12 Tone Beast Black have any built-in EQ features?

Yes, it includes an 80Hz highpass filter, allowing you to reduce low-frequency noise in your recordings.

Can the Warm Audio TB12 Tone Beast Black be easily integrated into a rack setup?

Yes, the Warm Audio TB12 Tone Beast Black is designed to fit into a standard 1U rack space, making it suitable for studio rack integration.

Warm Audio

Warm Audio

Warm Audio // TB12 Tone Beast Black - Tone Shaping Mic Pre - Getting Started

Video thumbnail for Warm Audio // TB12 Tone Beast Black - Tone Shaping Mic Pre - Getting Started by Warm Audio

Warm Audio // TB12 Tone Beast Black - Tone Shaping Mic Pre - Getting Started

Warm Audio

Warm Audio

Video thumbnail for Warm Audio // TB12 Tone Beast Black - In The Mix With Joe Carrell by Warm Audio

Warm Audio // TB12 Tone Beast Black - In The Mix With Joe Carrell

Warm Audio

Warm Audio

Video thumbnail for Warm Audio // TB12 Tone Beast Black With Producer Joe Carrell by Warm Audio

Warm Audio // TB12 Tone Beast Black With Producer Joe Carrell

Warm Audio

Warm Audio

Video thumbnail for Warm Audio // Kayley Hill "Money Tree" - TB12 Tone Beast Black - Tone Shaping Mic Pre by Warm Audio

Warm Audio // Kayley Hill "Money Tree" - TB12 Tone Beast Black - Tone Shaping Mic Pre

Warm Audio

Warm Audio

Reviews

PROS

  • Offers a variety of tone-shaping options

  • Houses 3 high-quality Cinemag transformers

  • Fully discrete Class-A signal path

  • Provides rich, warm tones even at minimal settings

  • Versatile, works well with guitar, bass, and vocals

  • Sufficient gain for low output microphones

  • Constructed solidly, feels quality

  • Features like gain and saturation add unique sounds

  • Compatible with different musical styles and instruments

  • Offers great value for its price point

CONS

  • Some features' effects are subtle, except the tone +6db button

  • Distortion/saturation levels may not fully meet 'beast' expectations

  • Requires time to fully explore and understand its capabilities

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Warm Audio TB12 Tone Beast Black.

Features and functionality

  • The tonal differences between output transformers and discrete amps are subtle and more noticeable with heavy electric guitars than with vocals.

    Source
  • The Tone Beast requires a separate preamp for using external compressors like the WA76, due to its design that doesn't allow direct tracking into some interfaces.

    Source

Use cases and applications

  • Dynamic mics, such as the SM7B, can bring out more character from the preamp due to their higher gain requirements.

    Source
  • The Tone Beast is praised for elevating the sound quality of even modest condenser microphones, significantly enhancing vocal recordings.

    Source
  • A focus on preamps is recommended when aiming to lay a solid foundation for vocal recordings, with the Tone Beast often being a first choice over compressors.

    Source

Comparisons

  • CAPI VP26 or 28 preamps are popular alternatives for a mid-forward API-esque sound, but they lack a front input which some setups may miss.

    Source
  • The Sytek MPX4 is noted for its fast, clean sound, contrasting with the Tone Beast's thicker, more colored output.

    Source

User experience

  • Some users find the Tone Beast works best when capturing guitar DIs or as an additional channel for drum recording.

    Source
  • Users have experienced a persistent hum even when only the power cable is connected, indicating potential grounding or electromagnetic interference issues.

    Source

Mods and upgrades

  • To accentuate the transformer's impact, driving it harder into saturation or adding a pad before the interface has been suggested.

    Source

Value and pricing

  • The Tone Beast is often recommended as a foundational preamp purchase before investing in compressors, especially for those looking to add thickness to vocals.

    Source

Setup and maintenance

  • Proximity to electromagnetic sources can cause hum issues; repositioning gear can resolve this, as seen with a Black Lion Power Conditioner causing hum in a similar setup.

    Source

Critic Reviews

Warm Audio TB-12 Tonebeast Black - Everything Recording

everythingrecording.com

The Warm Audio TB12 Tone Beast Black stands out as a versatile preamp, delivering professional-grade sound with a multitude of tonal options thanks to its CineMag transformers and discrete signal paths. Its ability to handle various sources and produce pleasing harmonic distortion makes it a favorite for home studios and professionals alike. However, while the customization options are a strong point, the subtle differences in components may not be immediately apparent to all users. Some may find pushing the limits results in a sound that could be polarizing, depending on individual taste. Overall, for those seeking a powerful tool to shape their sound, the TB12 is a compelling choice but may not suit everyone's preference for clarity over character.

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