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 |

Trạm hàn sato parts 10 pin
VCAP CuTF 0.022uF / 600V
Giáp chống nhiễu Neotech 7N , vỏ ngoài cotton -20AWG
V-Cap ODAM 1.0uf / 400V
Soekris Dam1921-02 R2R DAC
V-Cap ODAM 33uf /250V
WATTGATE 5266i - clear
Lundahl LL-1620 / 60mA
Lundahl LL-2745 / 18mA
Trở AMTRANS AMRG - 2W (chân vàng) - 2K
Tụ Jantzen Alumen Z-Cap 8.2uf / 100VDC
Cọc loa Jantzen Ms 02
Tụ Jantzen Alumen Z-Cap 4.7uf / 100VDC
Cuộn cảm Jantzen Cross Coil 1.2mH/ 16AWG
Dây Jantzen Silver Plate 2.5
Tụ Jantzen Cross cap 15uf / 400V
Điện trở Duelund CAST Silver/Graphite - 3.3R / 10W
Mundorf Silver Gold Wire 110
Cardas Audio CM - FXLR
Tụ Jantzen Alumen Z-Cap 10uf / 100VDC
Tụ Jantzen Alumen Z-Cap 3.3uf / 100VDC
Tụ Jantzen Amber Z-Cap copper C&B 0.022uF 630V
Điện trở SEIDEN TECHNO RHA50N - 470R - 30W - non inductive
Cardas Audio CG - FXLR
Treb SEAS E0006-06S - T25CF001 


