Warm Audio TB12 Tone Beast Tone Shaping Mic Preamp

£589.00 (including VAT @ 20%)

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Item in stock at our Distribution Centre in York

We currently have this item in stock at our Distribution Centre in York, ready for dispatch.

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Can be delivered to you on: 28th October 2016
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1 year warranty and 30 day money back guarantee included

1 year warranty and 30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

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Product Ref: 63457

  • Discrete 312 Preamp Design
  • Steel and Nickel CineMag Output Transformers
  • Classic 1731 and 918 Style Opamps
  • Capacitor Selection Provides Different Characters
  • XLR, TRS and 1/4'' Inputs with XLR and TRS Outputs

Warm Audio TB12 Tone Beast Tone Shaping Mic Preamp


The Warm Audio Tone Beast is an incredible mic preamp that has plenty of gain to offer, effortlessly capturing an array of sources incredibly well. The TB12 Tone Beast provides you with the ability to select different transformers, opamps and capacitors as well as enjoying a wide range of tones in the process. When you really push the Tone Beast, you'll find harmonic distortion that's perfect for electric guitars, bass and anything that needs some grit. Or, use the bypass function and the TB12 will deliver incredible, ultra-clean tones.

Product Ref: 63457

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Pay by Finance

To make it as easy as possible for you to get the gear you want, we offer a range of instant finance options. If you spend £250 or more online, you can choose to pay over 48, 36 or 24 months. The majority of decisions are given instantly, so you could get your new gear sooner than you thought!

Representative Example

To help you understand how our finance options work, the examples below are based on a total order value of £250:

Finance APR Deposit to Pay Payments Total Payable
Classic Credit 48 Months 14.9% 14.9% No Deposit 48 months: £6.83
Final payment: £6.83
No settlement fee
Classic Credit 36 Months 15.9% 15.9% No Deposit 36 months: £8.65
Final payment: £8.65
No settlement fee
Classic Credit 24 Months 18.9% 18.9% No Deposit 24 months: £12.41
Final payment: £12.41
No settlement fee

How to Apply

Applying for finance couldn't be easier - if your order totals £250 or more, simply proceed through the checkout as normal, then select Pay by Finance on the payment page, then click the orange APPLY FOR INSTANT FINANCE button. This will start your application with V12 Retail Finance, our finance partner, and completing this form should take approximately 10 minutes.

You should get an instant answer on whether your application has been successful, though in some rare cases V12 may need to look at the application in more detail.

Please note: This is only available on orders placed via the website and is not available in store or via phone currently.

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History Behind the Tone Beast

In the 60's and 70's many console/preamplifier builders hid the operational amplifier (opamp) of their preamps by cramming the components into a small box and then attaching the box to the circuit board. Inside these small boxes, the components were covered in glue to make them hard to disassemble/analyze. Manufacturers felt the character of these opamps was unique enough to protect.

The TB12 Tone Beast utilises this same square shaped opamp and pin configuration as the originals but without the plastic and glue housing. The TB12 is designed so that the stock opamp can be removed and replaced with whatever takes your fancy, allowing you to tweak and customise your sound as much, or as little as you like.

Multiple Discrete Signal Paths with Unprecedented Flexibility

By combining different mics with different preamps, you can make every source sound its absolute very best. First of all, you have the choice of a 1731 or 918 opamp; The 1731 is extremely coloured and break up quickly, while the 918 is fairly clean with a touch of character. Secondly, you have the choice of a 100% steel or 50% nickel transformer; The steel output transformer is more coloured than the nickel, especially when pushed. For even more tonal variety, the Tone Beast is provides you with the choice of tantalum and electrolytic capacitors.


  • Discrete 312 preamp design
  • CineMag input and output transformers
  • Provides 71dB of gain
  • Transformer selection delivers 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 provides both the classic 1731 (vintage) and 918 (cleaner) style opamps
  • Socketed/swappable with your choice of 2520 6-pin footprint opamps
  • Impedance switch labeled TONE, switches between 150 and 600 ohms input impedance
  • Capacitor selection between Tantalum and Electrolytic for different characters
  • 80Hz hipass filter
  • Polarity reverse
  • +48 V phantom power
  • Output attenuation allows for saturation flexibility of both the opamps and transformers
  • 1/4'' insert for use of inline compressors, EQ's etc
  • Balanced XLR mic (front and back), balanced TRS line and 1/4'' instrument inputs
  • Balanced XLR and TRS outputs
  • -20dB Pad
  • LED VU meter
  • 19'' rackmountable
  • External line-lump 24V AC power transformer for low noise