Detail 01
Push/pull volume control
Pulling the control bypasses the active EQ circuit and uses the passive tone circuit.
Product detailSKU #1500000259544
JacksonJS Series Spectra Bass JS3 Metallic Red
aggressivehigh outputmodernwarmmetalhard rock
1/5
Independent shopping perspective
The Korena take
Built around a four-string, 34-inch platform, the Spectra Bass JS3 combines an offset poplar body, bolt-on maple neck, and 24-fret laurel fingerboard. Its oversized upper horn is designed to distribute the instrument’s weight more evenly during longer playing sessions. Two humbuckers, coil splitting, and a 3-band active EQ give you several ways to shape the bass signal; pulling the volume control bypasses the active circuit for passive operation. The adjustable-saddle HiMass bridge supports precise intonation.
Strong match
Who this is for
- Bassists who want active EQ controls and a passive-bypass option in one four-string instrument.
- Players moving across the neck who want a 12–16-inch compound-radius fingerboard.
Consider the trade-offs
When to look elsewhere
- Players who require a five-string bass.
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
Two-way pickup toggle
Splits the coils of both humbuckers for a brighter single-coil sound.
Detail 03
HiMass bridge
Its saddles can be adjusted for intonation across the fretboard.
Final check
Know before you order
- 01A case or gig bag is sold separately.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can it still be used if the active circuit is bypassed?
Yes. Pull up the volume knob to bypass the active circuit and use the passive tone circuit.
02How many strings does it have?
It is a four-string bass.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
5 detailsPickups & controls
- Special Electronics
- 3-band EQ
- Neck
- Proprietary humbucker
- Pickup Configuration
- HH
- Control Layout
- Master volume
- Bridge
- Proprietary humbucker
7 detailsPlayability
- Fret Size
- Jumbo
- Nut Material Width
- Plastic/1.5 inch
- Radius
- Compound
- Orientation
- Right-handed
- Number of Frets
- 24
- Number of Strings
- 4 string
- Scale Length
- 34
13 detailsBody & build
- Color
- Black
- Body Material
- Poplar
- Body Finish
- Gloss
- Body Type
- Solid Body
- Inlays
- Dot
- Wood
- Maple
- Finish
- Satin
- Neck Wood
- Maple
- Fingerboard Material
- Laurel
- Neck Joint
- Bolt-on
- Color Finish
- Red
- Tuning Machines
- Sealed die-cast
- Bridge Tailpiece
- High mass
1 detailsIn the box
- Case or Gig Bag
- ✕ Sold separately
1 detailsOther
- Truss Rod
- Dual-action
