Detail 01
JFET circuit
Uses JFETs in place of the original amplifier’s vacuum tubes.
Product detailSKU #1500000383594
Jackson Audio1484 Twin Twelve Preamp/Booster/EQ/Overdrive Effects Pedal Silver and Black
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Independent shopping perspective
The Korena take
Jackson Audio’s 1484 Twin Twelve brings the 1963 Silvertone Twin Twelve circuit into a compact pedal built around JFETs rather than vacuum tubes. Control settings determine whether it serves as a studio-grade preamp, booster, EQ, or overdrive. A voltage doubler raises its internal supply from 9V to 18V, while the soft-click footswitch provides true bypass. The hand-built unit pairs a polished stainless-steel enclosure with custom-made knobs sized for the pedal.
Strong match
Who this is for
- Studio chains needing one pedal that can be set up as a preamp, EQ, boost, or overdrive.
- Players seeking the 1963 Silvertone Twin Twelve circuit approach in a pedal-sized format.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Internal voltage doubler
Converts 9V to 18V inside the pedal.
Detail 03
Soft-click true-bypass footswitch
Provides true bypass through a soft-click switch.
Final check
Know before you order
- 01Allow for a 5 x 2.52 x 4.53-inch pedal footprint.
- 02Its operating role changes with the control settings: preamp, booster, EQ, or overdrive.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What can the 1484 Twin Twelve be used for?
Depending on its settings, it can work as a studio-grade preamp, booster, EQ, or overdrive.
02Does it use vacuum tubes?
No. The circuit replaces the original amplifier’s vacuum tubes with JFETs.
03Is the footswitch true bypass?
Yes. It uses a soft-click true-bypass footswitch.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Black
2 detailsSize & weight
- Dimensions Wxhxd
- 5 inch x 2.52 inch x 4.53 inch
- Weight
- 1.82
