Fosi Audio N2 Headphone Amplifier Portable Amp 3.5MM Gain & Bass Switch Audio HiFi Powered Dual-Output with Lithium Battery for iPhone, iPod, iPad, MP3 and Computers
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- Simple compact design but practical and powerful. All-aluminum silver body has been carefully designed and CNC processed to make it compact and classic.
- High precision volume knob makes it easy to use. Features a switch for adjusting gain as well as another switch to fine-tune bass levels. Meets the needs of bass lovers.
- Low-pass filter duties on the line-output are handled by the OPA1642 chip. High fidelity stereo headphone amplifier and 3.5mm input/output jack, stream Hi-Fi music to your stereo system.
- High-performance headphone drive and circuit protection. 2200mAH internal battery powers for up to 12 hours of use. Load Impedance: 16-600Ω. Output remarkable sound without distortion.
- What you Get: N2 Headphone amplifier x1, User Manual x1, Type-C power cable x1, 3.5mm to 3.5mm cable x1, an 18-month worry-free warranty and friendly customer service.
- Batteries : 1 Lithium ion batteries required. (included)
- Package Dimensions : 17.81 x 8 x 2.31 cm; 168 Grams
- Date First Available : 28 November 2020
- Manufacturer : Fosi Audio
- ASIN : B08P8GQX6W
- Manufacturer reference : N2
- Customer Reviews:
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Fosi Audio was founded with a simple goal: Build products that sound great and make people want to listen to music every day. We design, manufacture, and sales many Hi-Fi audio products on the market. We pursue your perfect music journey. Enjoy Hi-Fi music with Fosi Audio audio products.
N2 Mini HiFi Headphone Amplifier
- Power supply: DC 5V 1A
- Internal voltage：±9.5V
- Magnification (Av): GAIN=L:3 GAIN=H:6.8
- Low-frequency gain（BASS=ON）: +6dB
- Frequency response: 10Hz-25KHz
- SNR: ＞100dB
- THD+N: 0.005%
- Headphone output impedance: 16-600 Ohm
- Headphone output power: 16Ohm/330mW 32Ohm/320mW
- 64Ohm/298mW 300Ohm/100mW
- 2 Channel Power Amplifier Series: BT10A, BT20A, TB10A, V1.0G, TDA7498E, HD-A1, BT20C;
- 2.1 Channel Power Amplifier Series: BT30A, TB20A, BT30C;
- DAC Series: Q4, Q5, Q5 Pro, Q7; DAC Amp: DA2120A;
- Subwoofer Amplifier Series: TP-01, TP-02, TP-03, M02, M03;
- Phono Preamp: Box X2; Tube Preamp: P1;
- Tube Headphone Amplifier: T20, P2;
- Passive Bookshelf Speakers: DK560, DK560-N;
Gain & Bass Switch
The N2 features a switch for adjusting gain as well as another switch to fine-tune bass levels.
3.5mm input/output jack.
Portable and Sturdy
Low-pass filter duties on the line-output are handled by the OPA1642 chip. Stream Hi-Fi music to your stereo system.
Mini Compact but Powerful
2200mAH internal battery powers for up to 12 hours of use. Output remarkable sound without distortion.
|Type||2.0 CH Amp||Subwoofer Amp||Headphone Amp||2.0 CH Amp/Headphone Amp||Phono Preamp||DAC|
|Input||Bluetooth + RCA||RCA||3.5MM AUX||Bluetooth + RCA||RCA + 3.5mm AUX||USB + Optical +Coaxial|
|Output||Passive speakers||Passive Subwoofer||3.5MM AUX||Passive Speakers + Headphone||Powered Speakers||3.5mm Headphone + RCA|
|THD||≤ 0.04%||≤ 0.04%||0.005%||≤ 0.04%||≤ 0.1%||≤0.01%|
|SNR||≥ 98dB||≥ 98dB||＞100dB||≥ 98dB||≥ 98dB||≥105dB|
|Terminating Impedance||2-8Ohm||2-8Ohm||16-600 Ohm||2-8Ohm||-||16-200Ohm (Headphone)|
|Power Adapter||24V/4.5A||24V/4.5A||5V 1A||24V/4.5A||12V/1.5A||5V 1A|
|Work Voltage||AC 110V - 240V||AC 110V - 240V||±9.5V||AC 110V - 240V||AC 110V - 240V||-|
|MAX Power Output||100 wattx2||220 watt||16Ohm/330mW 32Ohm/320mW 64Ohm/298mW 300Ohm/100mW||50 wattx2||-||-|
|Type||2.1 CH Amp||2.0 CH Amp||2.0 CH Amp||Bluetooth 2.1 CH Amplifier with Remote Control||2.0 CH Amplifier||2.0 CH Amp|
|Input||Bluetooth + RCA||Bluetooth + 3.5mm AUX||RCA||Bluetooth + RCA + USB + Optical + Coaxial||RCA||RCA|
|Output||Passive (Speakers+Subwoofer) +Powered Subwoofer||Passive speakers||Passive Speakers||Passive Speakers + Active Subwoofer||Passive Speakers||Passive Speakers|
|THD||≤ 0.04%||≤ 0.04%||≤ 0.04%||≤0.1%||≤0.04%||≤ 0.04%|
|SNR||≥ 98dB||≥ 98dB||≥ 98dB||≥110dB||≥ 98dB||≥ 98dB|
|Power Adapter||24V/4.5A||19V/4.74A||24V/4.5A||32V 5A||19V/4.74A||24V/4.5A|
|Work Voltage||AC 110V - 240V||AC 110V - 240V||AC 110V - 240V||AC 110V - 240V||AC 110V - 240V||AC 110V - 240V|
|MAX Power Output||50 wattx2+100 watt||50 wattx2||100 wattx2||120W x2||50W x2||160 wattx2|
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Top reviews from other countries
Very stylish, extremely portable / versatile, and just feels cool in the hands (though a tad too slick, at times, for those of us with old man fingers!). I bought TWO of these little guys for all the little music toys I seem to be hoarding in my retirement years. Baby Boomer issues . . . . don't get me started!
I use open-back headphones to listen to my electric guitar while I practice. I have a Fender Mustang Micro mini headphone amp plugged into my guitar, and I route the output of that amp into his Fosi Audio N2 for additional amplification. The Fosi allows me to keep the volume on my Mustang Micro very low, to save its battery and reduce distortion.
Charging the device is easy, and I'm grateful that more device manufacturers are moving towards USB-C as their power standard. I've only used this amp for a few hours so far, but it has held its charge well, without needing to be charged additionally.
The volume knob is sturdy and has a nice feel. The switches for gain and bass are very small, but seem durable enough for their purpose. I'm not sure how much abuse the switches could handle, though, so definitely don't let toddlers play with this amp unsupervised.
Volume is loud enough for my purposes, and I greatly appreciate the inclusion of a gain switch. I've played around with the bass switch a little, but don't use it much for playing guitar. It does definitely add a little additional "ooomph" to bass lines in pop music.