The following table shows the specifications and differences between the KATANA-AIR and KATANA-AIR EX.
| KATANA-AIR | KATANA-AIR EX | |
| Output | <AC adaptor> <Battery> | <AC adaptor> <Battery> |
| Speakers | 7.5 cm (3 inches) x 2 | 12 cm (5 inches) x 2 |
| Power Supply | AC adaptor (DC 13 V) Alkaline battery (AA, LR6) x 8 Rechargeable Ni-MH battery (AA, HR6) x 8 | AC adaptor (DC 13 V) Alkaline battery (AA, LR6) x 8 Ni-MH battery (AA, HR6) x 8(commercially available) Rechargeable amp power pack (Roland BTY-NIMH/A, sold separately) |
| Amp types | BROWN LEAD CRUNCH CLEAN ACOUSTIC | BROWN LEAD CRUNCH CLEAN ACOUSTIC/BASS |
| External output jacks | PHONES/REC OUT jack: Stereo miniature phone type USB port: USB B type | PHONES OUT jack: Stereo miniature phone type LINE OUT (L/MONO, R) jacks: 1/4-inch phone type USB port: USB B type |
| Transmitter | Included (WL-T) | Included (WL-T) |
| Options (sold separately) | Wireless MIDI Expression Pedal: EV-1-WL Wireless Footswitch: FS-1-WL | Rechargeable amp power pack: Roland BTY-NIMH/A Wireless MIDI Expression Pedal: EV-1-WL Wireless Footswitch: FS-1-WL |
| Dimensions | 350 (W) x 144 (D) x 181 (H) mm 13-13/16 (W) x 5-11/16 (D) x 7-1/8 (H) inches | 414 (W) x 192 (D) x 236 (H) mm 16-5/16 (W) x 7-7/16 (D) x 9-5/16 (H) inches |
| Weight | 2.2 kg (excluding batteries) 4 lbs 14 oz | 5.6 kg (excluding batteries) 12 lbs 6 oz |