耳機放大器類別:隨身耳放
頻響範圍:為20Hz-80kHz的
適配阻抗:32Ω
失真度:<0.005%(20Hz-20kHz)
輸入接口:3.5毫米接口×1
輸出接口:3.5毫米接口×1
配件:交直流適配器
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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+.
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。
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
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。
Input Voltage | DC | 5V/2.5A |
AC 100-240V, 50/60Hz | ||
Analogue Inputs | SE RCA L/R | 2.0V nominal @ 0dBFS, 1MegOhm Zin |
SE 3.5mm | 1.0V nominal @ 0dBFS, 1 MegOhm Zin | |
BAL 4.4mm | 4.0V nominal @ 0dBFS, 24kOhm Zin | |
Max Input Level | SE RCA | 3.8V RMS |
SE 3.5mm | 1.92V RMS | |
BAL 4.4mm | 7.4V RMS | |
Headphone Output Section | ||
Output Impedance | BAL 4.4mm HP | <2 Ohms |
SE 6.3mm HP | <1 Ohm | |
Headphone Output (RMS) | BAL 4.4mm | >11.5V/2,000mW (@ 64 Ohms) |
SE 6.35mm | >7.2V/1,600mW (@ 32 Ohms) | |
Headphone Output (Max.) | BAL 4.4mm | >15.1V/385mW (@ 600 Ohms) |
>6.2V/1,200mW (@ 32 Ohms) | ||
SE 6.35mm | >7.6V/98mW (@ 600 Ohms) | |
>7.2V/1,600mW (@ 32 Ohms) | ||
xMEMS | BAL 4.4mm | >21Vpp, 22 Ohms, 11V DC bias |
SNR | BAL 4.4mm | ≥125dB (7.3V 4.4mm Input 0dB @ 600 Ohms) |
SE 6.35mm | ≥122dB (1.9V Input 0dB @ 600 Ohms) | |
DNR | BAL 4.4mm | ≥119dB(A) @ 0dBFS |
SE 6.35mm | ≥119dB(A) @ 0dBFS | |
THD+N | BAL 4.4mm | <0.006% (@ 360 mW/2.4V 16 Ohms) |
SE 6.35mm | <0.006% (@ 100mW/1.27V 16 Ohms) | |
Line Output Section | ||
Output Impedance | <200 Ohms | |
Output Level | 4Vrms (0dB 200kOhm load) | |
SNR | ≥125dB (7.3V 4.4mm Input 0dB @ 200kOhm) | |
DNR | ≥119dB(A) | |
THD+N | 0.006% (0dB 200kOhm load) | |
General | ||
Gain | 0dB, 6dB, 12dB, 18dB | |
Frequency Response | 10Hz-200kHz (-3dB) | |
Power Consumption | No Signal | ~5W |
Max Signal | ~13W | |
Dimensions | 158x117x35mm (6.2×4.6×1.4”) | |
Net Weight | 495g (1.09 lbs) |
Specification of the Power Amplifier Unit
T-Amp IC Tripath TA2024
Output Power 2x15W @4ohm
2x6W @8ohm(RMS)
Signal-to-Noise Ratio (SNR) 98dB
Dynamic Range 98dB
IHF IM Distortion 0.10% @ 1W, 4ohm
THD+Noise Audiophile Quality 0.03% @ 9W 4ohm
0.1% @ 11W 4ohm
0.1% @ 6W 8ohm
High Power 10% @ 15W 4ohm
10% @ 10W 4ohm
Power Efficiency 81% @ 15W 4ohm
90% @ 10W 8ohm
Input Audio IN RCA (Left/Right) x 1
Power Socket (5.5mm/2.1mm) x 1
Speaker OUT RJ45 x1
Other Volume & Knob Power ON/OFF switch x
Power Indicator (Blue LED) x1
Power Supply DC 12V-13.2V (max.)
4.2 Specification of the Headphone Amplifier Unit
Signal-to-Noise Ratio (SNR) 92dB
Power Output 3.0 Watts per channel on 33 Ohm
Headphone
Frequency response 15 Hz – 100 kHz -1db
Input Impedance 10k Ohms
Input Audio CD IN RCA (Left/Right) x 1 [3Vpp max.]
Specification of the Pre Amplifier Unit
Input Impedence 10K Ohms unbalanced
Max Input Level +18dBV
Frequency Response 25Hz – 150KHz (+/- 3dB)
Output Power 450 mW/side,THD+N:0.1% (@16 Ohms)
108 mW/side,THD+N:0.1% (@300 Ohms)
Maximum Gain 20 dB/channel
Input Audio CD IN RCA (Left/Right) x 1 [3Vpp max.]
Audio IN 3.5mm jack (Left/Right) x 1
Power Socket (5.5mm/2.1mm) x 1
Output Audio Headphone OUT 3.5mm jack x 1
Switch Knob Audio and power switch x 1
Power Supply DC 12V-13V (max.)
4.4 Specification of the AC Adaptor
AC Input Universal AC 100V-240V/50-60Hz
DC Output DC 12V 5A (60W)
DC Plug DC 2.1mm
Ripple & Noise <= 25mV
Over-load Protection 105%-150%
Over-voltage Protection 115%-150%
Input | 4.4mm 3.5mm XLR/6.3mm 6.3mm pinout |
4.0Vrms (nom.) @ 0dBFS, 24kΩ balanced 1.0Vrms (nom.) @ 0dBFS, 1MΩ UnBAL 4.0Vrms (nom.) @ 0dBFS, 24kΩ balanced TRS: +, -, Gnd; compatible with TS: +, Gnd Separate left and right connectors |
Max. Input | 4.4mm 3.5mm XLR 6.3mm |
7.4V RMS 1.92V RMS 7.4V RMS 7.4Vrms balanced/3.8Vrms UnBAL |
Max Output | Balanced | >15.2V/385 mW (@ 600Ω) >11.0V/1890 mW (@ 64Ω) |
UnBAL | >7.6V/196 mW (@ 300Ω) >4.0V/1000 mW (@ 16Ω) |
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Output Impedance | Balanced UnBAL Line |
<2Ω <1Ω <200Ω |
THD + N | Balanced UnBAL |
<0.006% (@360 mW/2.4V 16Ω) <0.005% (@ 100 mW/1.27V 16Ω) |
SNR | Balanced UnBAL |
>122dBA (@7.3V) >120dBA (@ 1.9V) |
Gain | OdB, 6dB, 12dB and 18dB | |
Frequency Response | 10Hz-200kHz (±0.03dB) | |
Power supply requirement | DC 5V/2.4A (centre +ve) | |
Power consumption | No Signal ~5W/Max Signal ~13W | |
Dimensions | 158×121 x 35 mm (6.2″ x 4.8″ x 1.4″) | |
Net weight | 530g (1.17 lbs) | |
Limited Warranty | 12 months |
Technical details:
Output impedance < 0,1 ohm
Maximum output current 300 mA.
Maximum output voltage JAZZ 3.7 V
Maximum output voltage JAZZ-FF 15 V @ 200 Hz
Discrete volume control. Typical stepsize 1.4 dB, 31 steps.
Gain switch. Maximum gain factors +0 / +16 dB
Crossfeed filter switch:
1. Stereo / crossfeed OFF
2. Crossfeed ON
1 pair of analog inputs
Input impedance 18 kOhm
Gold-plated input jacks.
Silver plated headphone jack (Neutrik).
Silver plated heavy duty switches
10 Watts toroidal transformer.
110V and 220V mains power switchable.
Power uptake 5 Watts
Built-in groundloop breaker.
Double regulated voltage lines.
Low impedance electrolytic buffer capacitors (Nichicon). Total Buffer capacity 39.000 uF.
Bypass capacitors in the power supply.
Polystyrol and polypropylen capacitors in the signal path.
Metalfilm resistors in the signal path.
OPA209 opamps biased into class-A.
A total of 4 BURR-BROWN BUF634 buffer amplifiers at the left, the right, and the ground output channel.
Active balanced headphone ground.
Signal paths and signal path components at the bottom side of the PCB for maximal shielding.
Sturdy anodized aluminium enclosure
Weight: 1.0 kg
Size: 22.2 x 10.6 x 6.0 cm
規格和功能:
輸入阻抗:47 歐姆
頻率響應:5Hz至35KHz
信噪比:> 九十八分貝
總諧波失真:<0.001%, 至6mW/300歐姆
頻道分離:> 70dB/10kHz
輸出功率:650mW/300 歐姆,800mW/60歐姆
輸出阻抗:線路輸出60歐姆
功耗:<10W,內部穩壓電源
尺寸:180 毫米x 250毫米x 80毫米
連接器 (音頻):2 ×耳機插座6.35毫米
重量: 4.5 kg
顔色: 銀鋁陽極氧化
SPECIFICATION | |
Frequency Response : | 1 Hz – 50 kHz (-3 dB at 50 Vrms) |
Gain : | 58 dB |
Input Impedance : | 20 kΩ (analogue) |
Rated Input Level : | 150 mV (100V output) |
Maximum Output Voltage : | >300 Vrms (<1% THD) |
Harmonic Distortion : | 0.04% (at 100 Vrms / 1 kHz) |
Bass Boost : | +9 dB at 20 Hz |
+3 dB at 100 Hz | |
Signal to Noise Ratio : | >100 dB (Ref. 100V output A-weighted) |
Input Terminal : | RCA |
3.5 mm jack | |
GENERAL | |
Dimension : | 17.0 x 26.5 x 6.0 cm |
Weight : | 2.3 Kgs |
外部阻抗:4Ω
最大輸出:13V/250mA
增益係數:-1/+14dB
輸入:阻抗:10kΩ
重量:0.4kg
尺寸:10.6 x 11.7 x 4.2 cm
頻率響應:5赫茲至200赫茲(-3分貝)
串音:-84 dB的(@ 1kHz時)
總諧波失真:0001%(@ 1kHz時,0 dBu的輸入電平與團結增益)
噪聲:-97 dBu的
動態範圍:129分貝(@ 600歐姆阻抗)
阻抗:20歐姆平衡
最大輸入電平:+24 dBu的
輸出輸入端
耳機輸出:6,35毫米立體聲的trs連接
引腳接線提示=左,右環=,豎井=接地
阻抗:10歐姆
功率
輸出性能:
1.7W(+32,2 dBm的)@ 1 kHz和600歐姆
只有360mW(+25,6 dBm的)@ 1 kHz和30歐姆
電源
電壓:230伏交流電,50Hz/120V交流,60赫茲
功耗:最大。 5,6瓦/
保險絲:200-240伏交流電:200 mA/100-120伏交流電:400馬
高x寬x深:95 × 210 ×315毫米
用高腳的高度:127毫米
深度與音量旋鈕:335毫米
重量:2.65千克