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
rockmetalthrash
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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.
2 detailsPickups & controls
- Special electronics
- 3-band EQ
- Pickup Configuration
- HH
6 detailsPlayability
- Orientation
- Right-handed
- Number of strings
- 4 string
- Number of frets
- 24
- Number of Frets
- 24
- Number of Strings
- 4 string
- Scale Length
- 34”
9 detailsBody & build
- Color
- Black
- Body Material
- Poplar
- Body Type
- Solid Body
- Neck Wood
- Maple Neck joint: Bolt-on Scale length: 34” Truss rod: Dual-action Finish: Satin Pickups Pickup configuration: HH Neck: Proprietary humbucker Bridge: Proprietary humbucker Control layout: Master volume Special electronics: 3-band EQ Fretboard Material: Laurel Radius: Compound Fret size: Jumbo Number of frets: 24 Inlays: Dot Nut material/width: Plastic/1.5" Body Body Type: Solid Body Body wood: Poplar Body finish: Gloss Hardware Bridge/Tailpiece: High mass Tuning machines: Sealed die-cast Color: Black Other Number of strings: 4 string Case: Sold separately Orientation: Right-handed
- Body wood
- Poplar
- Fingerboard Material
- Laurel Radius: Compound Fret size: Jumbo Number of frets: 24 Inlays: Dot Nut material/width: Plastic/1.5" Body Body Type: Solid Body Body wood: Poplar Body finish: Gloss Hardware Bridge/Tailpiece: High mass Tuning machines: Sealed die-cast Color: Black Other Number of strings: 4 string Case: Sold separately Orientation: Right-handed
- Color Finish
- Satin
- Body finish
- Gloss
- Neck joint
- Bolt-on
2 detailsSize & weight
- Nut material/width
- Plastic/1.5"
- Scale length
- 34”
22 detailsOther
- Radius
- Compound
- Pickup configuration
- HH
- Inlays
- Dot
- Truss rod
- Dual-action
- Case
- Sold separately
- Tier
- new
- Fret size
- Jumbo
- Bridge/Tailpiece
- High mass
- Neck
- Proprietary humbucker
- Finish
- Satin
- Category Source
- detail
- Body Type
- Solid Body
- Wood
- Maple
- Color
- Black
- Material
- Laurel
- Korena Special
- false
- Tuning machines
- Sealed die-cast
- Orientation
- Right-handed
- Source Id
- site51500000259544
- Prop65
- WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
- Bridge
- Proprietary humbucker
- Control layout
- Master volume
Complete your setup
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