Here are the major differences between the RC-600 and the RC-300.
| RC-600 | RC-300 | |
| Display | Graphic LCD (128 x 64 dots, backlit LCD) | 7 segments, 2 characters (LED)16 characters, 2 lines (backlit LCD) |
| No. of tracks | 6 | 3 |
| Sampling frequency | 44.1 kHz | 44.1 kHz |
| Data format | WAV (44.1 kHz, 32-bit float, stereo) | WAV (44.1 kHz, 16-bit linear, stereo) |
| Maximum Recording Time | Approx. 1.5 hours (1 track), Approx.13 hours (total of All memories) | Approx. 3 hours (1 track) |
| Maximum no. of storable phrase memories | 99 | 99 |
| Play screen variations | 7 | 1 |
| MIXER screen | ✔️ | – |
Input | ||
4 MIC 1, 2 INPUT connector: XLR type × 2 INST 1, 2 INPUT jack: 1/4″ phone type × 2 | 3 INPUT MIC connector: XLR type × 1 INPUT INST jack: 1/4″ phone type × 1 INPUT AUX jack: stereo miniature phone type × 1 | |
| Phantom power | DC 48 V, 10 mA Max | DC 48 V, 10 mA Max |
Output | ||
| 1/4″ phone type × 3 stereo pairs (mono output × 6), assignable PHONES OUTPUT jack | 1/4-inch phone type 2 ch PHONES OUTPUT jack | |
| Loop FX | Input/output can be used for FX loop; external pedal can be used for track FX | – |
| Effect switches | Assignable | 1 |
| Max. no. of simultaneous effects | 4 | 1 |
| Effect type | INPUT FX: 49 types TRACK FX: 53 types MASTER FX: 2 types | LOOP FX: 16 types |
| No. of storable effect settings | 4 banks | – |
| ELECTRIC FX | ✔️ | – |
| VOCODER FX | ✔️ (supports MIDI notes) | – |
| Harmonizer FX | ✔️ (supports chord detection via MIDI) | – |
| No. of FX supported in step sequences | 7 | – |
| MARK BACK function | ✔️ | – |
| BOUNCE IN function | ✔️ | – |
| Overdub mode | 3 types | 2 types |
| Changeable loop phrase playback speed | ✔️ | – |
| CTL jack | CTL 1, 2/EXP 1 jack and CTL 3, 4/EXP 2 jack | CTL 1, 2/EXP 1 jack and CTL 3, 4/EXP 2 jack |
| Assign | 16 | 8 |
| Rhythm | Kits: 16, types: 200 or more | Kits: depends on the pattern; types: 83 |
| USB interface | Hi-Speed USB (USB mass storage class) Hi-Speed USB (USB-AUDIO, USB-MIDI) 8 in/8 out; max. 32-bit/44.1 kHz | Hi-Speed USB (USB mass storage class) Hi-Speed USB (USB-AUDIO) 2 in/2 out; max. 24-bit/44.1 kHz |
| BOSS TONE STUDIO | ✔️ | – |
| Dimensions | 435 (W) x 163 (D) x 66 (H) mm | 536 (W) x 231 (D) x 76 (H) mm |
| Weight | 2.4 kg | 3.9 kg |