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J66J1-B/T
FITS Korean-made WSC pickups in your Performance, Bass Mods
ORIGINAL DEEP TONE SERIES
STRONG LOW & LOW MIDS
MADE IN THE US
FREE SHIPPING IN THE USA
EXPERT TECHNICAL SUPPORT
IN STOCK MEANS IN STOCK
Full and warm deep vintage tone. These 6-string Dual inline-coil hum-cancelling Jazz bass upgrade pickups are made for Korean-made WSC pickups in your Performance, Bass Mods, or other 6-String J-Bass.
The original Bartolini design gives you the timeless tone that started it all – full and warm for that vintage voice you’ve been craving, enhancing the natural voice of your bass. These dual coil inline pickups are hum-cancelling even when only playing the neck or bridge pickup, so they are well suited for studio or stage. They have a blade core design, so you don’t have to worry about string alignment. Original Barts bring out your voice, low and clear.
In the early ‘70s, Bill Bartolini leveraged his deep knowledge of acoustics to create pickups that produce the most natural, musical voice from the instrument. He added shielding to block radio signals and noise. He developed a method of sealing, isolating, and stabilizing the coils so they could be encapsulated in epoxy to eliminate “microphonics” – the nasty noise you get when you touch typical pickups.
Coil Structure:
Dual Inline Hum-killing
Cable Type:
Shielded Coaxial Hot Core
Magnetic Circuit:
2 types of carbon steel powered by ceramic (ferrite) magnets
Opposite polarity for bass and treble coils for neck and bridge pickups
J66J-B1 - Neck

J66J-T1 - Bridge

Size (Neck & Bridge):
4.52" [114.8mm] Long
.74" [18.8mm] Wide

I bought my Ibanez Mode MDM1006 bass in March of this year (2026), and made it a point (or self-requirement) to make NO CHANGES to the instrument; no mods, no parts swaps, no upgrades - just learn and work with the stock instrument. Then, after 4-5 months, if there was anything I was unhappy with the instrument, then any upgrades/swaps would be justified because I’ve already given the stock settings an honest shot.
I knew I had to start with a pickup swap/upgrade because I believed that the Sonitech Preamp w/ Hexa-Mid system was pretty special and worth keeping - It’s what makes the Ibanez Mode what it is and sets it apart - especially its Hexa-Mid System. What I couldn’t live with was its harshness in the upper-mid and treble area - and that’s even with cutting out those regions.
Finding a pickup set was also difficult due to its routing dimensions. So I was between the Nordstrands Big J-Blade 6 or the Bartolini J66J’s. I figured either of those pickups would’ve worked just fine in place of the stock Delta S6J’s, and just went with the Barts simply because I didn't want exposed pole pieces to be visible.
Now, with the J66J’s, I have:
Fuller low end, Smoother high C, No harshness, Better balance across all six strings, EVERY Hexa-Mid position became useful (there’s six different frequencies to choose from), The Sonitech preamp no longer felt like it was compensating for the pickups, Bass EQ became a tone-shaping tool instead of a corrective tool.
Hope this review makes sense and is helpful. Thanks, Fat Bass Tone, for always having the parts and gear available for extremely nitpicky individuals like myself.
-Niño
I bought my Ibanez Mode MDM1006 bass in March of this year (2026), and made it a point (or self-requirement) to make NO CHANGES to the instrument; no mods, no parts swaps, no upgrades - just learn and work with the stock instrument. Then after 4-5 months, if there was anything I was unhappy with the instrument, then any upgrades/swaps would be justified because I’ve already given the stock settings an honest shot.
I knew I had to start with a pickup swap/upgrade because I believed that the Sonitech Preamp w/ Hexa-Mid system was pretty special and worth keeping - It’s what makes the Ibanez Mode what it is and sets it apart - especially its Hexa-Mid System. What I couldn’t live with was its harshness in the upper-mid and treble area - and that’s even with cutting out those regions.
Finding a pickup set was also difficult due to it’s routing dimensions. So I was between the Nordstrands Big J-Blade 6 or the Bartolini J66J’s. I figured either of those pickups would’ve worked just fine in place of the stock Delta S6J’s and just went with the Barts simply because I didn't want exposed pole pieces to be visible.
Now, with the J66J’s, I have:
Fuller low end, Smoother high C, No harshness, Better balance across all six strings, EVERY Hexa-Mid position became useful (there’s six different frequencies to choose from), The Sonitech preamp no longer felt like it was compensating for the pickups, Bass EQ became a tone-shaping tool instead of a corrective tool.
Hope this review makes sense and is helpful? Thanks Fat Bass Tone for always having the parts and gear available for extremely nitpicky individuals like myself.
-Niño
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