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+.
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
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
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。
Cypher Labs便攜式耳機擴 驅動能力達600ohm
想出街聽歌都欣賞到媲美錄音室的音色,Cypher Lab新推出的便攜耳擴AlgoRhythm Picollo就是最佳選擇,外形輕巧迷你,只有140g重量,方便放進褲袋或手袋內。
近年高質耳機及線控耳機的普及大行其道,為了簡化生產程序各大廠家會使用 op amps來取代生產耗時的三極管,美國耳機擴音器專家Cypher Lab就不計較生產繁複,所以推出的AlgoRhythm Picollo耳擴,特別推出採用三極管作放大、獨立輸出及輸入的耳擴,輕易驅動高至600ohm阻抗的耳機。
AlgoRhythm Picollo特別用上三極管的設計,可增強耳機所需要的阻抗驅動能力達600ohm,配上不同的耳筒時可增加聆聽音樂的細緻度,使耳機傳遞出清晰通透的中高音人聲,同時提升低音的澎湃感。此外擁有獨立輸出及輸入規格,提供的輸出功率最高對應輸入5Hz-50kHz ±1dB,可優化輸出的音質,令單元驅動更流暢。
此外,內置一枚2,000mAH充電式鋰離子電池,使聆聽時間長達約最高30小時。充電使用Mini USB 5V,所以可以從電腦或USB充電器充電,靈活易用,不用擔心外出使用時突然沒電,聽得不夠盡興,隨時隨地將音樂推至最高境界。
型式:平衡電樞型
輸入阻抗:40Ω
驅動單元:雙動鐵單元
系統:兩路系統 輸出感度:119dB/mW
插頭:φ3.5mm鍍金立體聲迷你插頭(L型)
響應頻率:20 ~ 18,000Hz
導線長:1.4m(Y型※)※左右兩側導線長度相同