| Sensitivity | 119 dB SPL/mW |
| Frequency Range | 18 Hz –19 kHz / 18 Hz – 19.5 kHz (LTD) |
| Speaker Type | Triple High-Definition |
| Impedance | 36 Ω |
電源電壓:9V 電池,6V/9V/15V伏直流輸入
電流:50毫安/25毫安
最大放大: 0 / 14 dB
輸入阻抗:120 / 17 kOhm
輸出阻抗:<1歐姆
尺寸:8.9 x 6.6 x 2.2 cm
無電池重量:130克。
類型:開放式耳筒
單元種類:動圈式
單元直徑:40mm
頻率響應:10Hz – 30,000Hz
靈敏度:96dB SPL/mW
阻抗:65Ω
線長:2.1m
最大輸入:1,000mW
插頭:3.5mm 直插
附件:後備耳機線、後備耳罩、6.3mm轉插、便攜套
重量:268g
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
耳機類型:密閉頭戴式
單元:40mm釹磁鐵
頻率響應:5Hz-25kHz
阻抗:46ohms
靈敏度:99dB
線材長度:1.8m
重量:286g
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
A modern portable amplifier with a classic circuit design. The National+ is an Opamp-less design; using 10 matched pairs of triodes in a discrete component layout. This approach to amplification delivers a robust sonic presentation that compliments a wide variety of musical styles and tastes.
The National+ housing is CNC’d from a single block of aluminum, providing exceptional protection for ‘on the go’ applications. Sized at just 3.38”x1.8”x.75”, its diminutive footprint conceals a versatile performer. Capable of pairing with sensitive earphones when in ‘low gain’ it is also capable of driving planar magnetic headphones while in its ‘high gain’ setting.
The easy to use National+ features a 3.5mm single-ended input and output. This offers a simple solution to amplify your portable high resolution digital audio player or the sensitive low level signal from your favorite DAC. Its output provides 3 gain stages to provide the perfect match for an audiophile’s earphones and/or headphones.
Carrying case, USB cable for charging and ALO audio amp straps included with The National+.
– Driver Type / Balance
– Impedance / 43ohm@1kHz
– Sensitivity / 106dB SPL/mW
– Maximun power input / 3mW
– Maximum power imput / 1800mW
– Frequency response / 4-20,000Hz