Warm Audio TB12 500 Tone Beast Microphone Preamp w/DI

Warm Audio TB12 500 Tone Beast Microphone Preamp w/DI

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SKU: WATB12500 Category:

Warm Audio TB12 500 Tone Beast Microphone Preamp was designed to deliver that same beautifully flawed and richly vitalizing sound. Warm Audio loaded this Tone Beast preamp with two discrete op amps in separate switchable signal paths. The classic Melcor-style 1731 op amp (x731 setting) offers a more vintage sound, whereas the Dean-Jensen-type 918 op amp (x18 setting) gives you a cleaner, more modern sound. And if you’re a real tone freak, then you’ll be delighted to know that these op amps are both mounted to the TB12 via standard 6-pin sockets, so you can swap them out with any 2520-class op amps you like.


Utilizes premium grade CineMag USA Transformers.

71db of gain.

Transformer selection provides both Steel and 50% Nickel CineMag output transformers for varying character.

Transformer bypass switch allows for removal of the output transformer from the circuit.

Discrete Opamp selection allows for choosing between a 1731(vintage) and 918(cleaner) style .opamp. These are socketed/swappable with your choice of 2520 6 pin footprint opamps.

Impedance switch labeled TONE to switch between 150 and 600 ohms input impedance. Changes the Tone of all inputs (Mic, Line and Hi-Z.).

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.

Capacitor selection between Tantalum and Electrolytic for different characters.

80hz hipass filter.

Polarity Reverse.

+48V phantom power.

Output attenuation allowing for saturation flexibility of both the opamps and transformers.

¼” insert for the use of inline compressors, eq’s etc.

Balanced XLR mic, balanced TRS line, and ¼” instrument inputs.

-20db Pad.

LED VU Meter.

Compatible with standard 500 series racks.


Preamp Type: Solid State

Phantom Power: Yes

Analog Inputs: 1 x XLR, 2 x 1/4″

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