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HomepageMic Preamps500 Series Preamps › Warm Audio TB12 - 500
Warm Audio TB12 - 500

TB12 500 Series is a Tone Shaping Microphone Preamp. The Tone Beast is a great mic pre with loads of gain that can effortlessly capture an array of sources very well.

With top notch CineMag transformers and multiple discrete signal paths, it's hard to beat its big, bold, fully-professional sound at its price.

The Tone Beast is a mic pre that likes to be pushed and when pushed will colorize your signal ever so sweetly. The 2 opamps and 2 output transformers at the flip of their switches won't appear to be much different, but as one drives the pre into harmonic distortion, the unique character of each of these components becomes apparent. Additionally the Tone Beast is customizable and allows for other opamps to be sourced and easily swapped into the unit. I've pulled my best tones from this pre right at the saturation point (as loud as I can push the gain before clipping). The output control on the TB12 allows you to limit the signal exiting the preamp even when pushing the gain to really hot levels, giving you maximum control.

The x731 (Melcor 1731) and x18 (Dean Jensen's 918) Op Amps saturate a bit differently. The 1731 breaks up faster and has more color when pushed. The 918 is fairly linear/clean with a smidge of character and does not break-up/saturate as quickly. The 100% steel output transformer colors the signal more than the 50% nickel transformer when pushed. However, both are designed to impart character. The 50% nickel transformer will impart less character and provide greater high and low frequencies. For an ultra clean, character-lacking tone, try the x18 while bypassing the output transformers completely.

Have no fear of hurting the Beast, you can push it very hard into full-on distortions if you wish, and these can sound quite nice on electric guitar, bass or anything else that likes some nice grit.

When hand building mic pres I learned a bit about the "subtle" differences component choices can make. A little change here, and another there often times became a huge deal in a finished mix, but often times is not very noticeable at first take. The different component options in the TB12 are subtle, but when driven into saturation are noticeable and can make a big difference to the way your final mix will sound.

Home-based musicians and professional studios alike will find the Tone Beast to be an extremely powerful and fully professional piece of gear that is capable of warming and shaping signals/mixes in a way that is very pleasing to the ear.
  • 71db of Gain.
  • CUSTOM DESIGNED Cinemag input and output transformers MADE IN THE USA!
  • TONE button - switches the input impedance from 600 ohms to 150 ohms.
  • Changes the tone of both the mic and HI-Z inputs.
  • Fully Discrete.
  • High voltage 1731 style operational amplifier.
  • 48 volt Phantom Power.
  • 2 Meg Ohm True HI-Z input on front panel. Sends instrument signal through entire circuit including both Cinemag Transformers and the discrete operational amplifier. Great for guitars, bass, keyboards and other instruments that have a 1/4 output jack.
  • 20db pad.
  • Compatible with standard 500 series racks
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    For more information about the TB12 - 500, please visit the website of Warm Audio
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