我的位置：
| outside diameter | 135 mm | depth | 74 mm |
| cutout | 108 mm | loudspeaker system | dual cone |
| woofer size | 4 inch | woofer cone material | paper |
| mounting system | 2 springs | 100V transformer power taps | 6 - 3 - 1.5 watts |
| impedance | 16 ohms | low impedance dynamic power | 30 watts |
| SPL 1W/1m | 88 dB | max SPL 1m | 103 dB |
| frequency response | 90 - 19K Hz | main construction material | steel |
| grille main material | aluminium | IP rating | 50 |
| applicable low impedance | Yes | applicable in 100V | Yes |
| Vertical dispersion angle 1000 Hz | 180° | Net weight product (kg) | 0,69 |
