Lowther PM7A Drive Unit
| DC Resistance of Voice Coil | Re | 7.4 ohms |
| Free Air Resonance | Fo | 45 Hz |
| Emission Piston Area | Sd | 0.021M² |
| Equivalent Volume Suspension | Vas | 55.907 Ltrs |
| Suspension Compliance | Cms | 892.762u M/N |
| Mass of Cone | Mmd | 11.0 g |
| Mass of Moving Parts | Mms | 12.75 g |
| Force Factor | Bl | 9.106 T-M |
| Mechanical Q Factor | Qms | 4.338 |
| Electrical Q Factor | Qes | 0.328 |
| Total Q Factor | Qts | 0.305 |
| Voice Coil Inductance @ 1 kHz | Le | 103.671 uH |
| Reference Efficiency | No | 1.729% |
| Sound Pressure Level | SPL | 94.397 Db |

Mundorf AG Power Cap 10000uf/ 40V
Tụ Jantzen Alumen Z-Cap 1.0uf / 100VDC
Mid/ Bass Scan Speak 18WU/8747T00 Illuminator
Cuộn cảm Jantzen Cross Coil 1.0mH/ 16AWG
Mundorf Silver Gold Wire 110
Tụ Jantzen Silver Z-Cap 2.7uf / 800VDC
Tụ Duelund CAST AG 0.1uf 630V
Cuộn cảm Jantzen Cross Coil 0.25mH/ 16AWG
Tụ Jantzen Cross cap 10uf / 400V
Dây Jantzen Silver Plate 2.5
Cuộn cảm Jantzen Cross Coil 1.2mH/ 16AWG
Trở AMTRANS AMRG - 2W (chân vàng) - 2.7K
IC ổn áp Belleson SPX17 Positive
Cuộn cảm Jantzen Cross Coil 0.82mH/ 16AWG
Fostex T925A Super Tweeter 


