X-Line CS-4.1
| Brand | Radiotehnika |
| Function | Speaker (Passive, Center Speaker) |
| Country | Latvia |
| Form Factor | Bookshelf / Stand Mounted |
| Dimensions | 185 x 480 x 275 mm |
| Weight | 10.2 kg |
| Frequency Response | 50-25000 Hz |
| Sensitivity | 88 dB |
| Music power | 120 W |
| Impedance | 6 Ohm |
| Type | 2 way 3 driver |
| Tweeter | 25 mm (silk) |
| Mid-Woofer | 2×125 mm (cellulose) |