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DiMarzio D Activator vs DiMarzio FRED

high confidence

Compared with the DiMarzio D Activator, the DiMarzio FRED has an Alnico V magnet (warmer, smoother).

Specs side by side

differs marks specs where they part ways
SpecDiMarzio D ActivatorDiMarzio FRED
DC resistancediffers11.41k10.38k
Inductancediffers4.56 H (measured, 1 reading)4.48 H (compiled)
MagnetdiffersCeramicAlnico 5
CoilHum-cancellingHum-cancelling
Bass (tone chart)differs5.5 / 104.5 / 10
Mids (tone chart)differs6 / 105 / 10
Treble (tone chart)differs4 / 105.5 / 10
Slotdiffersbridge humbuckerhumbucker
Traitsvintage output, tight & aggressivevintage output

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
97
measured inductance
Magnet
45
Ceramic vs Alnico 5
Coil
100
same coil type
Brightness
75
tone charts on the same scale
Mids
83
tone charts on the same scale
Bass
83
tone charts on the same scale

Videos

No videos for either pickup collected yet.

What players and reviewers say

On the DiMarzio D Activator

The low end delivers some thump, but doesn't flub out or get muddy.
Darth Phineas · Nov 23, 2015Darth Phineas (opens in a new tab)
The mids and highs are very nice for lead work in the neck position.
Darth Phineas · Nov 23, 2015Darth Phineas (opens in a new tab)
Everything on the DiMarzio D Activator

On the DiMarzio FRED

The low end stays tight and controlled, never spilling over into mud.
Darth Phineas · Apr 8, 2026Darth Phineas (opens in a new tab)
Light picking produces a clean and articulate response, while digging in brings out aggression and bite.
Darth Phineas · Apr 8, 2026Darth Phineas (opens in a new tab)
Everything on the DiMarzio FRED

Full reviews