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
Ztella II 產品技術規格:
.DAC和耳機擴大機 ESS Sabre 9281ACPRO
.USB音頻 2.0 High Speed Class 2
.手機/電腦連接埠 USB Type-C
.耳機連接埠 4.4mm 音頻插孔 (L+/L-/R+/R-)
.PCM最大採樣頻率 768kHz
.DSD最大採樣頻率 22.5MHz (DSD512)
.MQA (Master Quality Authenticated) 渲染器
.最大位元深度 32-bit
.最大輸出電平 預設 2.2Vrms / 增強按鈕開啟 3.3Vrms (LED 亮綠燈)
.訊噪比 115dB
.總諧波失真 0.0003%
.頻率響應(0-40kHz) +/-0.01dBrA
.作業系統 Android, iOS, macOS and Windows 10 / 11
.線纜長度 12.5公分
.重量 13.5公克
.外殼材質 霧黑色鋁合金
| bout materials | Body surface material: Ballistic nylon (1050 denier) Body material: W polymesh Body core material: Semi-hard material / Belpollen (thickness 2mm) |
|---|---|
| body color | black |
| size | Length (approx.) 180 mm x Width (approx.) 195 mm x Gore (approx.) 50 mm |
| accessories |
|
| remarks | |
| Planning and manufacturing | VanNuys Inc./Made in Japan |
IL1000 Specifications:
Units : Zinc Alloy Die Casting
Driver : Φ8mm IDP Dynamic Driver
Impedance : 16ohm
Sensitivity : 105dB/mW
Cable Type : CM 2-pin Detachable Type
Cable Info : OCC 6N 4core Litz Silver Plated Cable
Technical Specs
AMPLIFIER PERFORMANCE
Frequency Response +/- 0.1 dB (20Hz-20kHz) THD+N (20-20kHz, 150 Ω) 0.0015% THD+N (20-20kHz, 32 Ω) 0.0045% Noise -105 dBu Crosstalk @ 150 Ω -67 dB Inter-channel Phase @ 1kHz +/- 0.01° Channel Balance +/- 0.55 dB, all volume positions Max Output @ 600Ω 4.146 VRMS Max Output @ 150Ω 3.580 VRMS Max Output @ 32Ω 1.182 VRMS Power Supply 14.0 Vpp Output Impedance 0.62 Ω Battery Run Time 6-8 Hours* Charge Time 2-4 Hours*
FEATURE CHARACTERISTICS
Digital Stepped Attenuation 63 steps + mute Dual Gain 2.3x and 6.5x Bass Boost Off / Med / High Low Battery Indication @ 20 Minutes Thin Film Resistors 0.1% Tolerance Battery 1200mAh, 3.7V Li-Ion
CONNECTIVITY
Analog Input 3.5mm Digital Input USB Output 3.5mm Charging USB
DAC PERFORMANCE
Frequency Response +/- 0.14 dB THD+N 100 Hz 0.0014% THD+N 20 Hz 0.0015% THD+N 10 kHz 0.0025% IMD CCIF 19/20 Khz 0.0015% Noise A-Weighted -103 dBu Dynamic Range > 109 dB A-Weighted Linearity Error -90 dBFS 24/96 0.2 dB Crosstalk -10dBFS -80 dB Sum of Jitter Components @ 11025 Hz -112 dB PCB Stackup 4 Layers Maximum Output Line Out 100K 2.0 VRMS
DATA SUPPORT
Audio Formats 16/44, 16/48, 16/88, 16/96, 24/44, 24/48, 24/88, 24/96 Interface USB, Audio Class 1 Native Driver OS Support Windows XP & Later, OS X x86, Linux, iOS 7 DAC
COMPATIBILITY
iPhone YES: Requires iOS7+ and CCK iPad YES: Requires CCK Windows YES Linux YES Android YES: Requires v5.0+ and OTG Cable OS X YES
DIMENSIONS
Case Dimensions (mm) 99.5 x 61.5 x 14.0 Weight 4.2oz
形式
ARC51 / ARC52 / ARC53
コネクター
Pantaconn Ear
プラグ
3.5mm 3極L字 / 2.5mm 4極L字 / 4.4mm 5極L字
ケーブル長
約1.2m
仕様
8芯構造シルバーコートハイブリッドケーブル
(シルバーコートOFC&極細OFC / 3重シールド / 2重ツイスト8芯構造 / 黒シース)
| 音源輸入 | |
| XLR | 平衡輸入 |
| 端子 | XLR-3-31 (1:GND、2:HOT、3:COLD) |
| 輸入阻抗 | 20kΩ |
| 輸入靈敏度 | 2Vrms |
| LINE 1/2 | |
| 端子 | RCA |
| 輸入阻抗 | 10kΩ |
| 輸入靈敏度 | 1Vrms |
| AUX IN | |
| 端子 | 3.5mm立體聲迷你插孔 |
| 輸入阻抗 | 13kΩ |
| 輸入靈敏度 | 0.5Vrms |
| 音源輸出 | |
| HEADPHONE OUT | |
| 端子 | 6.3mm立體聲標準插孔 |
| 阻抗匹配 | 16Ω~600Ω |
| 實際最大輸出 | |
| 32Ω負載 | 1400mW + 1400mW |
| 600Ω負載 | 135mW + 135mW |
| 額定輸出 | |
| 32Ω負載 | 600mW + 600mW |
| 600Ω負載 | 34mW + 34mW |
| 失真 | 0.01%(1V輸入、600mW、32Ω負載) 0.002%(1V輸入、1V輸出、32Ω負載) |
| S/N比 | 110dB(A-Weight、RCA輸入2Vrms、1kHz) |
| 頻率響應 | 2Hz~100kHz (+0dB/-3dB) / 10Hz~100kHz (±3dB) |
| LINE OUT | |
| 端子 | RCA |
| 輸出阻抗 | 100Ω |
| 輸出電平 | 316mV(輸出切換:固定/可變/輸出關閉) |
| 功率消耗 | 22W |
| 最大外觀・重量 | 290(W) x 81.2(H)x 244(D)mm(含突出物)、4.1kg |
| Technology | S-Logic® Plus Technology |
|---|---|
| Building method | Open |
| Frequency Range | 6 Hz – 42.000 Hz |
| Impedance | 40 Ohm |
| SPL | 96 dB |
| Mu-Metall-Shielding | ULE-Technology |
| Driver | Titan |
| Gewicht | 295 g |
| Driver Size | 40 mm |