JAM Pure
Offset bridge with uncoated V-Rail® brass saddles for maximum touch, openness, and color.
Immediate attack and open, airy dynamics via direct acoustic coupling, with precise control and wide radius adjustment; CNC-machined from solid stainless steel and brass.
JAM Pure – who it’s for
Players prioritizing pure tone on fixed or non-gliding setups (e.g., offset builds without vibrato travel across the saddles).
Quick features
- Custom locking mechanism for secure bridge fixation
- Three compensated V-Rail® brass saddles for the E/A, D/G and B/e string pairs
- Widely adjustable string radius(7.25"–20", 12" preset)
- Precise left/right alignment of the overall string position
- Bridge base milled from a solid block
- Bare brass for direct string-to-saddle contact
Sound characteristics
- Open, airy, highly responsive
- Immediate attack with articulate highs
- Lively harmonic bloom with natural warmth
- Clear separation and wide dynamic range
Performance & tuning stability
- Positive bridge lock prevents drift and micro-rattle
- V-Rail® saddles: defined, secure string contact
- String radius adjustable from 7.25" to 20" for accurate setup matching
Materials & finishes
- Bridge base: Stainless steel, milled from solid (brushed or polished finish)
- Saddles: V-Rail® brass, uncoated
- Saddle height screws: Brass, M3 · two per saddle
- Mounting assembly (two-hole nut, bridge posts, bushings): Precision-turned stainless steel
- Bridge height screws: Brass, M4
Current hardware
- Intonation screws: Three stainless-steel screws, one per paired saddle, with clear anti-rattle polymer for smooth adjustment and reduced unwanted vibration
- Springs: Three position-matched industrial compression springs, one per saddle / intonation-screw assembly
Specs (Facts & Figures)
- Saddle architecture: 3 compensated V-Rail® saddles · E/A, D/G and B/e · two strings per saddle
- Intonation: One shared adjustment per saddle pair; relative compensation is built into the two V-Rail® contact positions
- Configuration: Plain-G setup standard; wound-G and left-handed setups are supported by changing the orientation of the compensated saddles
- Body size: 86 × 19 × 10 mm (L × W × H)
- Post spacing: 73.0 mm nominal · mounting range 72.6–73.4 mm
- String spacing (E–e): 52.0 mm overall · 10.4 mm between adjacent strings
- Adjustable string radius: 7.25"–20" · preset 12"
- Bushings (outer Ø): 9.0 mm · 9.5 mm · 20.5 mm length · Dual Pack(both sizes)
- Weight: approximately 62 g
Compatibility: JAM uses the supplied KMS bushings and posts; the original offset thimbles are replaced. Confirm post spacing, body-hole diameter and depth, required bridge height and string path on the actual instrument. Model name alone does not establish fit.
Precision CNC construction
Core metal components are precision CNC-machined or precision-turned from purpose-selected materials for:
- High dimensional accuracy
- Controlled planar contact surfaces
- Dense, solid material structure without casting-related porosity
Aged overnight (optional)
Deep-cooled to relieve residual machining stress for a more settled, vintage-like response and tone.