Seymour Duncan JB Jr vs Hot Rails Demo
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DiMarzio BC-1 vs Seymour Duncan JB Jr. (SJBJ-1)

DiMarzio BC-1
Strat single-coil
75 match
medium confidence

Seymour Duncan JB Jr. (SJBJ-1)
bridge Strat single-coil
Compared with the DiMarzio BC-1, the Seymour Duncan JB Jr. (SJBJ-1) has hotter output and tighter low end.
Specs side by side
differs marks specs where they part ways| Spec | DiMarzio BC-1 | Seymour Duncan JB Jr. (SJBJ-1) |
|---|---|---|
| DC resistancediffers | 11.62k | 16.09k |
| Inductancediffers | not measured | 10.23 H (measured, 1 reading) |
| Magnet | Ceramic | Ceramic |
| Coil | Hum-cancelling | Hum-cancelling |
| Resonant peakdiffers | — | 3.6 kHz (Seymour Duncan's own test load) |
| Bass (tone chart)differsEach maker grades its own chart, so read these within a brand | 5.5 / 10 | 4 / 10 |
| Mids (tone chart)differsEach maker grades its own chart, so read these within a brand | 6.5 / 10 | 6 / 10 |
| Treble (tone chart)differsEach maker grades its own chart, so read these within a brand | 2.5 / 10 | 5 / 10 |
| Slotdiffers | Strat single-coil | bridge Strat single-coil |
| Traits | high output, dark, mid-forward, tight & aggressive, noiseless | high output, dark, tight lows, tight & aggressive, noiseless |
How close on each spec
100 means identical on that spec. The score weighs these, and counts anything we couldn't compare as a typical difference. How scoring works
Output
53
DC resistance (no inductance for one of them)
Magnet
100
both Ceramic
Coil
100
same coil type
Brightness
81
each against its maker's average
Mids
86
each against its maker's average
Bass
30
each against its maker's average
Videos
DiMarzio BC-1
No videos of its own collected yet.
Seymour Duncan JB Jr. (SJBJ-1)
Seymour Duncan JB Jr. Demo
What players and reviewers say
On the DiMarzio BC-1
“For cleans, well, ANS or BC-1 are darker & hotter, but with more harmonics..”
On the Seymour Duncan JB Jr. (SJBJ-1)
“The JB Jr sounds like it has great crunch on the bass, good mids but way too ice-picky treble.”
“The JB Jr sounded bright, almost glassy and the mids seemed, well nasal, if that makes any sense!”
Full reviews
DiMarzio BC-1
None collected yet.