型式:平衡電樞型
輸入阻抗:45Ω
驅動單元:一單體
輸出感度:122dB/mW
插頭:φ3.5mm鍍金立體聲迷你插頭(L型)
響應頻率:40 ~ 18,000Hz
導線長:1.4m(Y型※)※左右兩側導線長度相同
.獨家製的40mm鈦單元
.配合Sub-Chambers提高音頻的動態平衡
.低音更非同凡響
.柔軟的淺啡色仿真皮革耳墊
| Drivers | Dynamic(10mm) |
| Balanced Armature*2 | |
| Frequency range | 10 Hz-30 KHz |
| Impedance | 16Ω |
| Sensitivity | 102±2dB |
| Connections | 3.5mm Gold-plated |
| Cable | 1.2m |
| Weight | 22g |
| Element | Φ10 mm dynamic type |
|---|---|
| Acoustic technology | Tornado turbo |
| Sensitivity | 106 dBSPL/mW |
| Frequency response | 5 Hz ~ 40 kHz (Hi Res Compatible) |
| Maximum input | 200 mW |
| Impedance | 18 Ω |
| Mass | Approx 13 g |
| Cord | 1.2 m with gold plated plug |
Technical Specifications
Manufacturer: JBL, Inc..
Model Name: JBL Reference 420
Available in: Black
Input Requirement: Main connection – 3.5mm stereo mini jack
Power: 50mW
Sensitivity: 91dB SPL/mW @ 1kHz
Frequency Response: 10Hz – 20kHz (–10 dB)
Dimensions: Diameter – 102mm
Main audio cable – 1.5m
Extension cable – 1m
Weight: 170g (without cord)
Input Impedance: 32 Ohms
| 無線/有線 : | 有線 |
| 播放頻率 : | 20 – 20,000 Hz |
| 靈敏度 : | 114dB/mW |
| 插頭 : | 3.5mm |
| 導線長度 : | 1.2m |
單元 : 4動鐵單元
頻率響應: 15-25 kHz
靈敏度: 108dB at 1 kHz
阻抗: 18 Ohms
線長: 1.6m (可換線 MMCX 插針)
接頭: 3.5mm 鍍金