About This Item
Description
The Jackson Audio 1484 rebuilds the beloved 1963-1967 Silvertone Twin Twelve amplifier circuit part-for-part, swapping every vacuum tube for a JFET transistor, so a single stompbox can act as a studio-grade preamp, clean booster, EQ, or vintage American overdrive.
Why guitarists choose the 1484
- An officially licensed, part-for-part recreation of the Silvertone 1484 Twin Twelve amp circuit, not a generic amp-in-a-box emulation.
- An internal voltage doubler converts the 9V supply to 18V internally for extra headroom and touch sensitivity.
- A 3PDT soft-click true bypass switch removes the loud pop typically associated with true bypass switching.
- Custom-manufactured knob reproductions and a hand-built, laser-cut stainless steel enclosure echo the original amplifier's look and durability.
- Four amp-style controls (Volume, Bass, Treble, Gain) can dial in a clean preamp tone, a sparkly overdrive, or the classic bass-up/treble-back Silvertone voice.
Controls and switches
- VOLUME — Sets overall output level.
- BASS — Boosts or cuts low frequencies in the recreated Twin Twelve tone stack.
- TREBLE — Boosts or cuts high frequencies; back off treble and push bass for the classic red-and-white Silvertone tone.
- GAIN — Sets drive amount from a clean preamp base to sparkly, smooth overdrive when driven with the other controls near noon.
Power and pedalboard compatibility
Runs on a 9V DC center-negative supply drawing 35mA; an internal voltage doubler boosts this to 18V internally, and a 9V power supply is optional at checkout rather than included by default. No battery operation is published for this pedal.
Technical specifications
| Model | Jackson Audio 1484 Silvertone Twin Twelve Preamp/Overdrive |
| Effect type | Amp-in-a-box preamp / booster / EQ / overdrive |
| Controls | VOLUME, BASS, TREBLE, GAIN |
| Bypass | True bypass |
| Input impedance | 1000 kΩ |
| Power | 9 Volt DC |
| Current draw | 35 mA |
| MPN | 1484 |
| GTIN | 649985848032 |
| ASIN | B0B77YW5QM |
| Warranty | 5-year Jackson Audio VIP Warranty |
FAQ
Does the 1484 come with a power supply? Not by default. Jackson Audio sells the 1484 as pedal-only, with a 9V power supply available as a paid add-on option at checkout.
What amp is the 1484 based on? The officially licensed 1963-1967 Silvertone Twin Twelve amplifier circuit, recreated part-for-part with JFET transistors replacing every original vacuum tube.
Can I use the 1484 as a clean boost instead of an overdrive? Yes. Keeping GAIN low delivers a clean preamp tone you can use purely for EQ shaping and level boost, while raising GAIN moves into sparkly, smooth overdrive.
Does the 1484 have MIDI or presets? No. The 1484 is a fully analog, knob-controlled pedal with no MIDI, digital control, or stored presets.
What is the enclosure made of? A hand-built, polished, laser-cut stainless steel enclosure co-branded with Silvertone.
What power does the 1484 need? A 9V DC center-negative supply; an internal voltage doubler raises this to 18V internally, drawing 35mA from the external supply.