The Prism is designed using a "tone shaping" approach to sculpt the sound. While this pedal contains many features and circuits, those circuits are precisely engineered to work in harmony, creating a unique tone modeling tool with unmatched flexibility and performance.

EQ

The active equalizer provides incredible tonal control and has ZERO interaction between the BODY and TONE controls. Zero interaction means that adjusting the TONE only affects the high frequencies without changing the low end, and the same applies to the BODY control. The most useful feature of the active EQ in the Prism is that when placed first in the pedal chain as a master EQ, you can set your main tone with just one pedal, avoiding the need to adjust the EQ on each pedal in your rig when switching guitars, amps, or locations.

Boost / Preamp

Prism features three distinct boost voices:

• Trans: A clean, transparent boost with no tonal coloration using JFET transistors
  
• Amp: Saturation that emulates a tube amplifier using MOSFET transistors
  
• Color: The original gain circuit, a treble booster with silicon transistors
  

These three circuits represent over 50 years of guitar effects development, from the oldest guitar pedal ever made to the most modern transparent sound circuits.

Buffer

Prism is a true bypass pedal with its own silent switching circuit using relays with a smooth 'momentary switch' to achieve bypass. Relay switching is much more stable than traditional mechanical true bypass methods. The relays have a lifespan of over 100,000 cycles. The Prism includes a high-current buffer at the end of the circuit that is used to strengthen your signal and preserve your tone, regardless of how complex your pedalboard or cable length to the amplifier is.

Switching/programming mode

The switch is used to turn the pedal on/off and also to enter programming mode.

To enter programming mode, hold the switch for five seconds.

While in programming mode, turn the BOOST control to set the indicator light brightness.

Press the switch three times to toggle the pedal's active state between ON (green) and OFF (yellow).

Press and hold the switch again for five seconds to save the settings.

Internal voltage regulator

This pedal has an internal that takes the incoming DC (direct current) voltage from the power supply and regulates it to a precise 9V. Running the Prism at 18V will neither improve nor alter its tone in any way. It will simply cause the regulator to heat up more, shortening its lifespan.