The Eastman AR603CED-15 and AR605CED share the same basic all-solid archtop recipe: solid spruce tops, solid mahogany back and sides, 25-inch scales and twin Seymour Duncan Seth Lover humbuckers. The real choice is size. The AR603CED-15 is compact; the AR605CED is larger and deeper.
Key differences
| AR603CED-15 | AR605CED | |
|---|---|---|
| Body width | 15 inches | 16 inches |
| Body depth | 2 3/4 inches | 3 1/4 inches |
| Top | Solid spruce | Solid spruce |
| Back / sides | Solid mahogany | Solid mahogany |
| Neck / fingerboard | Mahogany / ebony | Mahogany / ebony |
| Scale | 25 inches | 25 inches |
| Pickups | 2 x Seymour Duncan Seth Lover | 2 x Seymour Duncan Seth Lover |
| Bridge | Adjustable Gotoh bridge | Adjustable ebony bridge |
| Hardware | Gold | Gold |
| Current UK price reference | £2,295 at Project Music | £2,349 at RGuitars |
Which one makes more sense?
Choose the AR603CED-15 if you want the same broad all-solid construction and twin-humbucker setup in a smaller body that is easier to hold for long sessions.
Choose the AR605CED if you prefer the feel and acoustic presence of a larger traditional archtop body. Its 16-inch width and extra half-inch of depth make the physical experience the main reason to choose it over the 603.
Read the full model pages: Eastman AR603CED-15 and Eastman AR605CED.
Specifications checked against Eastman’s current model pages. UK price references checked in October 2026. The two price references come from different retailers, so treat them as current examples rather than a strict like-for-like price comparison.