Rocktron Widowmaker Guitar Preamp

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Rocktron Widowmaker Guitar Preamp. Free shipping in the USA!

Rocktron’s history of creating great guitar preamps continues with the introduction of the Widowmaker. This high gain monster offers intense distortion and powerful tone and features a new design from LA Custom.

With over-the-top metal gain, our intended user for the Widowmaker is the modern metal guitarist, and those who rock on the very heavy side.  The Widowmaker is an outstanding choice for a two channel analog preamp.  This single rack space molten gain producing machine delivers the goods when it comes to high gain shred tone.

Controls include Level, Bass, MID, Treble and Gain in the HIGH GAIN channel, and Level, Bass, Mid and Treble for the CLEAN channel, while providing a wide range of tonal possibilities. At Rocktron, we know the importance of incredible high gain, especially for the metal and rock players. The Widowmaker delivers and has been designed to give you the goods in the gain department!

In the HIGH GAIN Channel, the Level control determines the output level independent of the Clean Channel.  The Bass control is used to determine the amount of low frequency information present in the High Gain channel, and is adjustable to + -15dB.

The MID control in the High Gain channel is used to determine the amount of high frequency cut.  Up to 30dB of mid range cut may be applied.  The Treble control is used to determine the amount of high frequency information present in the High Gain channel, and is adjustable up to + -15dB.

The Gain Control in the High Gain channel is used to determine the amount of Gain (distortion) present in the High Gain channel.

Use the CHANNEL Switch on the front of the Widowmaker to switch in and out of the High Gain channel.  When the LED is lit, the High Gain channel is active.

This preamp not only delivers on the gain front, but you will be thrilled with the great clean tones available when using the Widowmaker.  Shimmering, glassy, crystal-like tone is possible in the clean mode.

The Widowmaker CLEAN Channel also offers Level, Bass, MID and Treble controls for clean tones.  Special attention was paid to delivering great clean tone with this preamp!

The Front Panel of the Widowmaker Guitar Preamp is where you find the On and Off switch, and a Power LED indicates when the preamp is “on”.  A standard ¼” mono jack provides an input to the Widowmaker from a guitar or other effect.

The Back Panel of the Widowmaker is where you find the footswitch jack that accepts a ¼” mono cable and connects to a single-function latching footswitch for channel switching functions.  A standard ¼” Output jack provides the output of the Widowmaker, which can be fed to an amplifier or other effects.


  • Input Impedance: 1M Ohms
  • Output Impedance: <100 Ohms
  • Input: 1/4" mono unbalanced (front)
  • Output: 1/4" mono unbalanced (back)
  • Foot Switch Jack: 1/4" mono latching on/off type switch (VFS1 opt foot switch available)
  • Power Requirements: 9VAC 1.5amps 2.5mm barrel
  • Dimensions: 19" x 1.75" x 4"
  • Weight: 4.9lbs

Download manual here

Rocktron Widowmaker Guitar Preamp
SKU: RT-1-1901
UPC: 737681440473
Weight: 8.00 LBS
Width: 12.00
Height: 7.00
Depth: 23.00
Shipping: Calculated at Checkout
Warranty: Full manufacturer's warranty