Gretsch G9200 Boxcar Round-Neck Mahogany Body Resonator 6-String Guitar BundleGretsch G9200 Boxcar Round Neck Mahogany Body Resonator 6 String Guitar (Natural) With its mahogany long body design and comfortable soft V shaped neck, the Gretsch G9200 Boxcar Round Neck 6 String Guitar plays like a million bucks. The vital feature of this guitar is the Gretsch Ampli Sonic diaphragm (resonator cone), which is hand spun in Eastern Europe from nearly 99 percent pure aluminum, yielding an impressive quality and volume of tone. Gretsch