Adams Idea a4 vs Adams Idea Tech a4OS
Side-by-side factory specifications. Differing values are highlighted.
Adams Idea a4forged · 8620 carbon steelAdams Idea Tech a4OScast · stainless steel with magnesium-crowned hybrid heads (3H-5H) and thermoplastic-urethane-insert hybrid-style irons (6-PW)
Specification comparison
| Club | Idea a4 loft | Idea Tech a4OS loft | Idea a4 lie | Idea Tech a4OS lie | Idea a4 length | Idea Tech a4OS length |
|---|---|---|---|---|---|---|
| 3H | — | 19 | — | 59.25 | — | 40.5 |
| 4H | — | 22 | — | 60 | — | 39.75 |
| 5H | — | 25 | — | 61 | — | 39 |
| 5 | 26 | — | 60.5 | — | 38.5 | — |
| 6 | 29 | 28 | 61.5 | 61.5 | 37.875 | 38.25 |
| 7 | 33 | 32 | 62 | 62.25 | 37.25 | 37.5 |
| 8 | 37 | 36 | 62.5 | 63 | 36.625 | 36.75 |
| 9 | 41 | 40 | 63 | 63.75 | 36 | 36 |
| PW | 45 | 44 | 63.5 | 64 | 35.75 | 35.75 |
| GW | 50 | — | 64 | — | 35.5 | — |
| SW | 55 | — | 64 | — | 35.25 | — |
| LW | 60 | — | 64 | — | 35 | — |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Which should you choose?
The Idea Tech a4OS is the stronger-lofted set — up to 1° stronger than the Idea a4 on matching clubs. Expect longer carry per numbered iron but a flatter descent angle; gapping at the wedge end is where that shows up.
Both charts are reproduced in full on their own pages: Adams Idea a4 specs and Adams Idea Tech a4OS specs.