

The Firefly by JHS is a tribute to the Tonebender MKIII model of the late 60s, featuring a classic three-transistor Germanium fuzz circuit. The pedal includes four controls: Volume, EQ, Fuzz, and Bias. The Volume control acts as a master volume with significant headroom, allowing it to function as a boost. The EQ control operates as a cut, removing highs and fattening the tone as it is rotated to the right. The Fuzz control adds more distortion/fuzz to make the signal dirtier. The major addition to this classic circuit is the Bias control knob, which fine-tunes the power to the hand-matched germanium AC128 transistors inside, resulting in loud and powerful tones when rolled to the left and more dirty/saturated tones when rolled to the right. This control also helps overcome the issue of transistors sounding different in various temperatures and environments. The pedal also features internal voltage and polarity adjustments, allowing it to be powered on a normal 9V power supply.
The Firefly is designed for fans of classic fuzz and offers unique touch sensitivity, response, and rich tone characteristic of true Germanium fuzz. It is described as a powerful and versatile piece of gear that can cover a range of genres from blues to rock to heavy grinding distortion.
Technical Specifications:
- Type: Fuzz
- Controls: Volume, EQ, Fuzz, Bias
- Finish: Silver
- LED Color: White
- Power: Standard 9V DC Negative power, consumes less than 100mA
- Dimensions: 2.2" x 4.3" x 1.5"
Additionally, the I/O for the amp and guitar are not labeled, and no manual is included or available online.
Watch the latest video demos and reviews for the The Firefly from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.
Below are live Reverb listings for the JHS The Firefly from Reverb. Stompbx automatically aggregates current offers to give you a quick look at available models, conditions, and prices. Perfect for comparing options and making an informed purchase.
Excellent
$270
Excellent
$404.61
Mint
$650
Excellent
$325
Mint
$341.68
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