Tone City Audio Mini Series All Spark JFET Boost Effects Pedal

The Tone City All Spark is a low-gain boost pedal built to add clarity, punch, and dynamic response to your tone—all while keeping things simple and effective. Based on a classic JFET design, it delivers up to 17dB of clean, transparent volume boost, making it perfect for pushing your amp into natural breakup or giving your solos the lift they deserve.

While its layout may be minimal, the All Spark offers surprising versatility with two thoughtfully designed switches: Bright and Fat. The Bright switch enhances upper mids, giving your tone extra bite and helping lead lines cut through the mix. The Fat switch adds depth by boosting the low-end, making it easy to thicken up your sound when things get a little too thin.

Whether you're looking to add volume, push your amp, or shape your tone with subtle EQ shifts, the All Spark delivers the goods—all without altering your guitar’s natural character. Simple, smart, and full of life, this pedal is a must-have for tone purists and boost lovers alike.

Please note: This pedal is not compatible with 9V batteries and must be powered using a 9V DC power supply.

• Low-gain boost pedal with up to 17dB of clean volume
• Classic A JFET circuit design for transparent tone
• Single knob control for simple operation
• Bright switch for enhanced upper midrange bite
• Fat switch for increased low-end response
• Ideal for pushing amps into breakup or boosting solos
• Maintains the natural character of your guitar and amp
• Compact and pedalboard-friendly design
• Powered by DC 9V power supply only
• Compatible with Tone City Substation and TPS Series power supplies
• True bypass switching for pure signal flow