| Length / | 1090mm | ||
| Length of strings / | 750mm | ||
| Sound board / | Spruce | ||
| Back & side / | Rosewood | ||
| Fingerboard / | Ebony | ||
| Neck / | Mahogany | ||
| Coating / | Urethane | ||
| Price (ex-tax) / | NCB-12 | 120,000 | Yen |
| NCB-20 | 200,000 | Yen | |
| NCB-30 | 300,000 | Yen | |
As the contrabass guitar is tuned 1 octave lower than the prime guitar, it is possible for a player to use the same music scores. The length of the strings is the longest of the orchestral guitars. The rich sound with a hard core builds a bridge between the bass guitar and the guitarron. It pushes the sounds of the bass family to the back of concert halls, and produces a variety of sound colors together. In the Australia-Japan international goodwill concert in Melbourne, it powerfully conveyed the orchestra sound all the way to the seats on the third floor.
