Jackson 2919004576 JS2 Spectra 4-String Electric Bass

The Jackson JS Series Spectra Bass JS2 is a right-handed, 4-string electric bass built for players who want a versatile instrument with modern controls and a full 34-inch scale. Its Snow White gloss finish, black hardware, and offset Spectra Bass body create a clean stage-ready look. The poplar body and large upper horn are designed to distribute weight across the instrument and support comfortable playing.

This bass suits new players building their first rig as well as experienced musicians needing an affordable backup or rehearsal instrument. The bolt-on maple neck uses a scarf-joint construction and a satin finish for a smooth playing feel. Its speed neck contour, 12-inch-radius laurel fingerboard, and 24 jumbo frets provide access across a two-octave range.

Jackson equips the JS2 with a P-style neck pickup and J-style bridge pickup in a PJ configuration. This pairing provides separate neck and bridge pickup voices, with a blend control to combine them. The result is a flexible foundation for fingerstyle, pick playing, rehearsals, recording, and live bass work.

An active bass boost circuit expands the onboard tone-shaping options when active mode is engaged. The master volume knob includes a push/pull selector for active or passive operation, while the separate bass boost control functions in active mode. This layout gives the player a direct way to move between passive operation and an enhanced low-frequency setting.

The JS2 fits naturally into a standard bass setup with an instrument cable and bass amplifier, or into a recording chain with an appropriate bass preamp or interface. Its Jackson HiMass hardtail bridge and sealed die-cast tuning machines are designed for dependable string support and tuning adjustment. With nickel-plated steel strings installed from the factory, it is ready to be set up to the player's preferred action and string feel.

Key Features

• PJ Pickup Configuration: Combines Jackson P-style neck and J-style bridge pickups.
• Active/Passive Operation: Push/pull volume selector bypasses or engages the active circuit.
• Active Bass Boost: Adds adjustable bass boost when active mode is selected.
• 34-Inch Scale: Full-scale bass layout supports familiar string tension.
• 24 Jumbo Frets: Extends the playable range across two octaves.
• HiMass Hardtail Bridge: Provides a fixed bridge platform for string setup.

Design & Installation

The Spectra Bass JS2 uses a gloss-finished poplar body with a large upper horn, a bolt-on maple neck with scarf joint, and a satin neck finish. Its laurel fingerboard has a 12-inch radius, white dot position inlays, and 24 jumbo frets. Black hardware includes sealed die-cast tuners, dome-style control knobs, black pickup covers, and a unique Jackson 2x2 headstock.

Use this bass with a compatible bass amplifier, pedalboard, DI/preamp, or recording interface and an appropriate instrument cable. Set string height, intonation, and neck relief to suit the preferred playing style; the bass has a dual-action truss rod with adjustment at the nut. A truss-rod wrench is included, while a case or gig bag is sold separately.