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
| Frequency Response | + / – 1dB – 5Hz – 160 kHz (tested at 300 ohm) |
| Maximum Output | 10 V Peak to Peak |
| THD+N | 0.001% @ f = 1 kHz |
| Input Impedance | 50k Ω |
| Output Impedance | <1 Ω |
| RMS power per channel | both channels driven |
| Output Power – Balanced | 80 mW into 32 ohms 105 mW into 50 ohms 210 mW into 300 ohms 80 mW into 600 ohms |
| Output Power – Unbalanced | 105 mW into 32 ohms 130 mW into 50 ohms 52 mW into 300 ohms 26 mW into 600 ohms |
| Battery | 3400 mAh Lithium-Ion (Sanyo UR18500F) |
| Battery Play Time | Min. 15 hours (Amplifier) / Min. 7 hours (Amplifier + DAC) |
| Battery Recharge Time | 3 hours |
| Formats supported | DSD256/128/64, Octa/Quad/Double/Single-Speed DSD DXD(384/352.8kHz), PCM(384/352.8/192/176.4/96/88.2/48/44.1kHz) MQA |
| Digital Inputs | USB 3.0 type ’A’ High-Speed Asynchronous USB 2.0, (32bit/384kHz) |
| Headphone Outputs | Balanced 4.4mm Single-Ended S-Balanced 3.5mm |
| Power Output | 2.0V/400 mW @ 16 Ohm |
| Battery | Lithium-polymer 2200mAh |
| Power System | Charging via USB-C, BC V1.2 compliant up to 1000mA charging current |
| Power (max) | <2W idle, 4W max |
| Dimensions | 102(l) x 70(w) x 14(h) mm |
| Weight | 125g (0.28 lbs) |
| Gain | +3dB |
| Maximum output power | 350mW (32ohm) |
| SNR | -111db |
| THD+N | 0.02% |
| Frequency range | 10hz-50khz |
| Net weight | 165g |
| Size | 120x57x16.5mm |
♦ DAC芯片:CS43198 x2
♦ 解碼:24bit/192kHz PCM、DSD
♦ 輸出功率:3.1Vrms (非平衡,零負載),3.4Vrms (平衡,零負載)
♦ 輸出端子:3.5mm耳機、2.5mm平衡耳機
♦ 儲存:內置32GB (支援兩張高達256GB micro SDXC卡)
♦ 續航時間:11小時
♦ 其他功能:USB Audio
♦ 體積:72x112x18mm
♦ 重量:190g
1x pair Phono (stereo) (A1). Gain 3dB; 1.4Vrms in for 2Vrms out
1x 3.5mm analogue stereo (A2). Gain 12dB; 500mVrms in for 2Vrms out. Analogue inputs overload
capability >40dB
1x Asynchronous USB 2.0 interface, 44.1–192kHz ≤24-bit. Jitter <90ps p-p. Apodising filter and upsampling of 44.1/48kHz inputs to 88.2/96kHz; MQA decode and render
1x pair phono (stereo) preamp out. Maximum output 3.1Vrms @ 1kHz, THD <0.001% @ 1kHz up to 3V
rms. Crosstalk <–70dB @ 1kHz. Output can be disabled via power button
2x 1/4in A-type stereo phone jacks. Maximum output 3Vrms off load, THD <0.002%. Output impedance
<100mΩ. Power output 250mW up to 42Ω. Short-circuit protected
1x 3.5mm stereo phone jack. Max output 3Vrms off-load, THD <0.002%. Output impedance 2.2Ω
SABRE32 Ultra DAC (ES9016S x 2)
USB輸入 (PCM):44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz (16, 24, 32bit)
USB輸入 (DSD):2.8MHz, 5.6MHz
同軸 / 光纖 / AEC / EBU輸入:32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz (16, 24bit)
非同步傳送 (Asynchronous Transfer) 減少Jitter
3種 數碼過濾模式 (SHARP / SLOW / SHORT)
Lock Range Adjust 功能可有效減低Jitter
音訊升頻 (最高至384kHz / 32-bit)
保護式變壓器 (Shield Power Transformer) 有獨立線圈,有效分隔電源、數碼及模擬部份
完全平衡 (Full Balanced) 線路設計可減低噪訊
分散式線路設計 (Discrete Circuit) 令音質處理質素提升
平衡耳機端子:XLR3 / XLR4 x 2
非平衡耳機端子:STD x 1
“Fine Adjust” 可作細微聲量調節
附有增益調校 (Gain Switch) 以切合不同阻抗的耳機
數碼隔離器 (Digital Isolator) 可減低因USB產生的雜訊
採用NEUTRIK平衡端子
XLR3 / RCA可作前級 (Pre-Amp) 功能
低重心設計配合堅固機箱增加穩定性
消耗功率:35W
尺寸 (闊 x 高 x 深):296 x 101 x 271 mm
重量 (kg):6.3kg
前置端子-耳機輸出:非平衡 (STD) x 1,平衡 (XLR3) x 1,平衡 (XLR4) x 1
後置端子-數碼輸入:USB (type B) x 1,同軸 x 2,光纖 x 2,AES/EBU (XLR3) x 1
模擬輸出:非平衡 (RCA) x 1,平衡 (XLR3) x 1 (附有輸出水平 Fix / Variable變換及相位變換)
Pre-Amplifier
THD(+ noise): <0.008% (10Hz to 20kHz) Signal to Noise Ratio: >109dB “A”- wtd
Frequency Response: 15Hz to 75kHz -3dB max.
Inputs
1x Line Level RCA / Phono
USB type ‘B’ connector for computer/PDA
General
Dimensions – WxHxD (mm): 220 x 100 x 300
Weight (unpacked / packed): 3.4 kg / 4.1 kg
輸入阻抗:36.5千歐
頻率響應:± 1 dB的0 – 20KHZ
信噪比:110分貝
總諧波失真:<0.12%時為150mW
輸出功率:250MW(小於1%失真)
輸出阻抗:5.6歐姆
功率: 20W,內部-穩壓電源
輸入:
1個USB連接(支持24位@ 96kHz的10ppm的低抖動時鐘)
1 x同軸RCA(支持高達24位@ 192KHz的)
1 ×金鍍金RCA(線路電平輸入)
由線材起家,ALO在音響的生意近年越做越大,耳擴方面也有不錯的成績。便攜耳擴的系列繼The National、The Continental後,繼續以地域來命名,新機稱作The International,同時擁有DAC及耳擴功能。機身同樣走輕巧路線,擁有USB DAC,最高對應24bit/96kHz,芯片用上Cirrus Logic CS4398,模擬方面對應3.5mm Line-in及4針平衡輸入,輸出亦同樣備有方型4芯平衡輸出及3.5mm耳機輸出。平衡線路方面用上Burr Brown DRV134作放大處理,輸出作面備有3段Gain設定。耳擴在充電後可使用14-16小時,如果連同DAC功能使用,續航時間為8-10小時,擁有不俗的續航力。
解碼晶片採用CS4398, 支持24/96