G9240 Alligator™ Round-Neck Resonator Guitar The miracle of volume! Whether you play chunk rhythm, fingerstyle, bottleneck or anything else, the all-mahogany G9240 Alligator Biscuit Roundneck resonator guitar with deluxe appointments projects its distinctively swampy tone all the way to the back door of any dancehall. Like all fine Gretsch resonator guitars, the vital feature of the G9240 is the Gretsch "Ampli-Sonic™" diaphragm (resonator cone). Hand-spun in Eastern Europe from nearly 99-percent pure aluminum, the Ampli-Sonic diaphragm yields an impressive quality and volume of tone.