Dunlop Heavy Core (.010–.048): a 10-gauge set built to drop-tune
Written with AI help · Updated
Dunlop Heavy Core DHCN1048 is a .010 to .048 nickel wound electric set built for dropped tunings. It keeps a normal .010 top but runs heavier wound strings, .028, .038, .048, than a standard .010 to .046 set, and Dunlop uses a special core wire and wrap ratio so the low strings stay tight and focused when you tune below standard. Reach for it when you want a 10-gauge feel on top but play in Drop D or lower.
What Heavy Core is
Dunlop Heavy Core is a .010 to .048 nickel wound electric set with one job: hold together when you tune down. Dunlop builds it, in its own words, for "the player that plays in dropped or lowered tunings," using a "unique core wire and proprietary wrap ratio" so the strings "maintain tension and tonal focus when tuning below standard." The result is a set you can "really dig in" on while "retaining a tight low end, focused midrange, and smooth top-end."
The gauge tells the story: .010, .013, .017, .028, .038, .048. The top three are a normal light set, so leads still feel familiar, but the three wound strings are a step heavier than a standard .010 to .046. That extra low-string mass is what keeps a detuned low string tight instead of flopping.
Heavy Core vs a standard 10-gauge set
If you put Heavy Core next to a standard .010 to .046 like a Regular Slinky, the top strings are identical. The difference is all in the bottom.
| Standard .010-.046 | Dunlop Heavy Core .010-.048 | |
|---|---|---|
| Wound strings (D, A, low E) | .026, .036, .046 | .028, .038, .048 |
| Built for | Standard and Eb tuning | Drop D, Drop C, lowered tunings |
| Low-string feel when detuned | Loosens up below Eb | Stays tight and focused |
| Top-string feel | Standard .010 light | Standard .010 light |
That is the trade in one line: same top, heavier bottom, built to detune.
Who it is for, and the rest of the line
Reach for Heavy Core if you keep a 10-gauge feel up top but live in Drop D or Drop C, the metal and metalcore default. The heavier .048 low string is what holds tension where a standard .046 gives up. If you tune lower still, Dunlop makes a .012 to .054 Heavy Core for exactly that, and a longer scale helps too, which our scale-length guide explains.
Worth knowing: the sets CYS already covers from Dunlop's Kerry King and Trivium signatures are this same Heavy Core build in player-chosen gauges. This DHCN1048 is the stock version of that line. For the wider field of metal sets across brands and tunings, our best strings for metal comparison lays them out.
Heavy Core
Why this one: A .010 to .048 nickel set with a light top and a heavier, drop-tuned low end. Dunlop's core wire and wrap ratio keep the low strings tight and focused in Drop D and Drop C where a standard .046 goes loose.
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