10% cheaper ≈ US$2,300
- Lens shift Vertical and horizontal vs Vertical
- Automatic keystone correction
- Fan noise 28 dB vs 31 dB
- Brightness (ANSI / ISO lumens) 4,100 lm vs 5,500 lm
- Built-in speakers (total output) 24 W vs 30 W
10 home cinema projectors at a similar price that compete with the LS901-4K — what each does better, what it gives up and how the price compares.