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Volume, boost & expression effect pedal
29 PEDALS JFET 3-way Boost is a boost pedal with a special circuit based upon the JFET transistor, long-loved in the world of audio for its similarities to vacuum tubes. As always for 29 Pedals it’s a ground-up design, from a blank sheet of paper, an effort to elevate the humble boost circuit to something refined and tonally enhanced.
The JFET circuit has three modes, N for “normal,” where a typical boost might sit in terms of frequency response, almost a treble boost but not quite. “F” adds a little more weight, and “X” that flattens the circuit all the way down to below 10Hz, giving you an incredible feeling of weight without sounding like additive EQ. The extension in the frequency response also tightens the phase and gives you an incredible, solid feel.
The L control sets the level, it’s a fader after the boost circuit and before the output driver. This means the gain of the first stage is set, and you can use the fader to set the level into the output stage, so THD, hair, and tone remain the same throughout the travel. The output driver after the fader ensures that the output impedance remains consistent. JFET makes about 18dB of gain.
JFET can be used after a buffer or input driver (like EUNA), and also can function as an always-on input driver at the beginning of the board. It sounds great following EUNA and also stacked with overdrive pedals. It will drive heavy loads and has high-headroom, making it equally happy at the end of your board.
The same WHATEVER power input and relay-based switching as our other pedals, and instant-bypass whenever power is removed.
The JFET circuit has three modes, N for “normal,” where a typical boost might sit in terms of frequency response, almost a treble boost but not quite. “F” adds a little more weight, and “X” that flattens the circuit all the way down to below 10Hz, giving you an incredible feeling of weight without sounding like additive EQ. The extension in the frequency response also tightens the phase and gives you an incredible, solid feel.
The L control sets the level, it’s a fader after the boost circuit and before the output driver. This means the gain of the first stage is set, and you can use the fader to set the level into the output stage, so THD, hair, and tone remain the same throughout the travel. The output driver after the fader ensures that the output impedance remains consistent. JFET makes about 18dB of gain.
JFET can be used after a buffer or input driver (like EUNA), and also can function as an always-on input driver at the beginning of the board. It sounds great following EUNA and also stacked with overdrive pedals. It will drive heavy loads and has high-headroom, making it equally happy at the end of your board.
The same WHATEVER power input and relay-based switching as our other pedals, and instant-bypass whenever power is removed.
Lire la suite
Technical sheet
- 29 PEDALS JFET 3-way Boost
- SKU 29 Pedals JFET
- Boost
- Made in USA
- Analog circuit
- +18dB
- 3x modes N, F, X
- Connections : see pictures
- True bypass
- Whatever power circuit can handle any optional power supply from 7.5 to 35V - both AC and DC (power consumption 100 mA, doesn't work on batteries)
- 90 x 85 x 52 mm
