JBL Professional 305P MkII vs JBL Professional 306P MkII
Both side by side at true size, and which one fits better in typical rooms. Rankings come from the same engine as the quiz, using independent measurements where they exist.
Drawn at the same scale.
Which fits better?
Each situation is run through the same rules as the quiz. A gap of less than 2 points (of 100) counts as about the same.
| Situation | 305P MkII | 306P MkII | Better fit |
|---|---|---|---|
| Small room, on a desk (10 m², 0.8 m) | 82 | 65 | 305P MkII |
| Medium room (18 m², 1.1 m) | 83 | 78 | 305P MkII |
| Large room, on stands (30 m², 1.8 m) | 77 | 78 | About the same |
| Desk close to the wall (under 20 cm) | 78 | 67 | 305P MkII |
| Bass-heavy music (techno, hip-hop) | 82 | 83 | About the same |
| Flat with neighbours, untreated room | 83 | 71 | 305P MkII |
Key differences
- The JBL Professional 305P MkII costs €120 less per pair.
- The JBL Professional 305P MkII is more neutral in independent measurements (preference score 7.52 vs 6.94).
- The JBL Professional 306P MkII has the bigger woofer (6.5″ vs 5″), which suits larger rooms.
Specs side by side
| JBL Professional 305P MkII | JBL Professional 306P MkII | |
|---|---|---|
| Typical price (pair) | €278 | €398 |
| Preference score (with sub) | 7.52 | 6.94 |
| Bass, −6 dB | 47 Hz | 43 Hz |
| Max level (pair peak at 1 m) | 111 dB | 113 dB |
| Woofer | 5″ | 6.5″ |
| Ways | 2 | 2 |
| Port | Rear | Rear |
| Room correction | No | No |
| Boundary EQ | Yes | Yes |
| Inputs | XLR, TRS | XLR, TRS |
| Size (H × W × D) | 298 × 185 × 231 mm | 361 × 224 × 282 mm |
Bold marks the better value where one is clearly better. * estimated from the maker's figure. Max level: peak level of a pair at 1 m, converted from the maker's figure.
Not sure? Check both against your room

