Why is YU4 better than SP-S15BT?
YU4 has no measurable advantages in this pair.
Why is SP-S15BT better than YU4?
- Lowest frequency60 Hz vs 20 Hz3×
- Bluetooth version4 vs 5.2+30%
Specifications
Side by side
| Sound | ||
| Output power | 70 W | — |
| Speaker channels | 2.0 | — |
| Channel count | 2 | — |
| Lowest frequency | 60 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Stereo | Yes | — |
| Battery & charging | ||
| Battery life | — | 20 h |
| Mains powered | Yes | — |
| Battery powered (portable) | No | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 4 | 5.2 |
| Bluetooth codecs | aptX, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | Yes | — |
| LDAC | No | — |
| 3.5 mm jack / AUX | Yes | Yes |
| Optical input | Yes | — |
| Design & build | ||
| Weight | 3,200 g | — |
| Width | 140 mm | — |
| Height | 220 mm | — |
| Depth | 190 mm | — |
| Protection rating | — | IPX5 |
| Water resistance (IPx) | — | IPx5 |
| Colours | White | — |
| Features | ||
| Party / stereo pairing | — | Yes |
| Light effects | — | Yes |
