ISP Technologies Theta 2RU Preamplifier

The THETA Preamplifier offers a unique approach to the guitarist, providing two selectable input pre-distort preamplifiers. Using the THETA preamp is like having two low-noise, extremely high quality preamp pedals at the input of the amplifier.

Each front-end pre-amp has gain, bass, mid level, mid sweep and treble which provides amazing pre-distort tone shaping. The amplifiers’ “Clean” and “Distort” circuits have the same post distort tone shaping. Tone beyond your wildest dreams! No other amplifier, Tube, Solid State or Digital even comes close to the sonic flexibility of the THETA.

The Clean channel has additional tone shaping with the inclusion of a Presence control providing more than 20db of high frequency boost. You want gain? The THETA Preamp literally has more gain available than any amplifier ever produced with greater than 140db of gain and you can control it and make it useable only because we’ve included dual independent full-featured Decimator Noise Reduction systems.

The Decimator guitar noise reduction system defines a new standard for excellence in real time noise reduction performance. The Decimator was designed to provide the maximum possible performance in a noise reduction system designed specifically for extremely high gain guitar amplifiers.

The THETA Preamp Decimator is the only system in the world designed with dual channels of single ended noise reduction. Configured specifically for high gain guitar applications. The THETA is the first preamp to incorporate “Dynamic Saturation Modulation™”, which delivers the actual feel of a saturated tube power amplifier.