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Loft options, stock shafts and specs for two drivers golfers cross-shop. Callaway Quantum Max and Mizuno JPX One each have a full page.
| Spec | Callaway Quantum Max | Mizuno JPX One |
|---|---|---|
| Category | Players Distance | Players Distance |
| Model year | 2026 | 2026 |
| Loft options | 9° to 12° | 9° to 12° |
| Head size | 460cc | 460cc |
| Adjustable hosel | Yes | Yes |
| Stock shafts | Fujikura Ventus Blue 6, Fujikura Ventus Blue 5 | Fujikura Ventus Blue 6, Fujikura Ventus Blue 5 |
| MSRP | $649 | $549 |
| Technology | High Launch | High Launch |
| Loft | Callaway Quantum Max | Mizuno JPX One |
|---|---|---|
| 9° | Fujikura Ventus Blue 6 (stiff) | Fujikura Ventus Blue 6 (stiff) |
| 10.5° | Fujikura Ventus Blue 6 (stiff) | Fujikura Ventus Blue 6 (stiff) |
| 12° | Fujikura Ventus Blue 5 (regular) | Fujikura Ventus Blue 5 (regular) |
Stock shafts shown are the representative options on file for each loft; retailers and fitters carry more.
On paper these two drivers line up almost exactly. The Callaway Quantum Max and the Mizuno JPX One are both 2026 players distance drivers with 460cc heads, adjustable hosels, and the same loft options at 9°, 10.5° and 12°. They even share stock shafts, with the Fujikura Ventus Blue 6 in stiff and the Ventus Blue 5 in regular. Both carry a High Launch tag. The one verified difference is price. The JPX One lists at $549 and the Quantum Max at $649, so the Mizuno is $100 cheaper. Either driver suits a player who wants a full-size head with launch help and the ability to tweak loft at the hosel.
The recommendation follows from the price. The Mizuno JPX One is the pick, because it matches the Quantum Max on every listed spec and costs $100 less at MSRP. The Callaway Quantum Max only makes sense if brand preference, looks or feel at address matter more to you than the money, and those are things a fitting will settle, not a spec sheet. If distance and forgiveness are your priorities, nothing in the listed specs separates them. If price is a priority, the JPX One wins outright.