Spec: Measured: 8.4cm*5.5cm*1.0cm Weight:78g Power input: DC5V/1A(PC`s USB 0.5A) Charge time: <4 hours(@1A) Playback time:>40 hours THD+N:<0.0005% SNR:≥117dB Noise:<3uV(Low Gain), <7uV(High Gain) Gain: 0dB/8.7dB Bass:0dB/4.0dB Output Power: 150mW(32Ω); 25mW(300Ω) Frequency response: 20Hz-100kHz Recommended Headphone Impedance: 16-300 ohm Warning: Output voltage of the charger could not exceed 5V Package: NX1s *1 3.5 to 3.5 Audio Cable *1 Rubber band *2 Velcro *5 Rubber Pad *1 User Manual *1 Warranty card *1
P**R
For the size and price, this is a great headphone amp!
For the size and price, this is a great headphone amp! The sound quality is commendable, as are the build quality and outstanding battery life. I use mine with the Line output from a Sony D-EJ250 CD Walkman and into decent headphones the result is impressive.Small point: Someone on online forum head-fi.org has commented on the slight (2db @ 20Hz) bass roll-off and said it "appears to be largely due to undersized coupling caps between the volume pot and gain stage (1uF into 9.4K resulting in a -3db point of 16.9Hz)" They are there to protect your headphones from any DC coming from the source. However, after checking DC offset was v low, they took the drastic step of shorting the caps. They then reported "Bass definitely bigger and tighter (not over the top, just less softened)." Because of space constraints, no better sounding alternative caps look likely, but tampering with the amp would naturally invalidate the guarantee...
Trustpilot
4 days ago
1 day ago
