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Meet the Topping Audio NX3s. This tiny, portable headphone amplifier packs in a powerful punch with an output power of 545mW x2 (32Ω) and 100mW x2 (300Ω) which can drive just about any headphone. Unlike standard amplifiers which can support only CD-quality audio i.e. a frequency range up to 20kHz or Hi-Res (up to 40kHz), the NX3s supports audio up to 200kHz! This Amp is Hi-Res certified by the Japan Audio Society.
The NX3s also lets you choose between a clear, neutral sound and bass boost. You can adjust the gain settings (0dB to 8.8dB) to match any kind of input. The 2400mAh battery gives you 18 hours of playtime. Low battery? Charge it for a mere 4 hours to go from 0% to 100%.
Great attention to detail has been paid while designing the NX3s. It uses high-quality materials like a WIMA capacitor and ALPS potentiometer. The amplification circuit consists of an OPA2140+ LME49720 that's installed on an OP AMP socket. The volume knob has been designed to prevent any accidental turns while you're listening to music.
|DIMENSIONS||10.7cmx 6.6cmx 1.36cm|
|WEIGHT||157g (Unit Only)|
|HEADPHONE OUTPUT||1 X 3.5mm|
|POWER LED||Blue light (it lights red when power is too low)|
|CHARGE LED||Light red (slow) or Light orange (fast) when NX4 DSD is charging; Light green when charge is completed.|
|THD+N @A-WEIGHTING||< 0.0017% @ 1kHz, Output = 273mW (32Ω)
< 0.0025% @ 20Hz-20kHz, Output = 273W (32Ω)
< 0.0003% @ 1kHz, Output = 50mW (300Ω)
< 0.0008% @ 20Hz-20kHz, Output = 50mW (300Ω)
|SNR @A-WEIGHTING||> 120dB @ 1kHz|
|FREQUENCY RESPONSE||20Hz - 200kHz (+/-0.55dB)|
|OUTPUT LEVEL||11.5Vpp @ 32Ω, Gain =L, Bass = OFF
15Vpp @ 300Ω, Gain = L, Bass = OFF
|NOISE||<25uVrms @ Gain=L
<6.5uVrms @ Gain=H
|CHANNEL CROSSTALK||-90dB @ 1kHz|
|GAIN||0dB / 8.8dB|
|BASS||0dB / 4dB (70Hz)|
|OUTPUT POWER||545mW x 2 @ 32Ω THD+N<1%
100mW x 2 @ 300Ω THD+N<1%
|BOX CONTENTS||1. TOPPING NX3s|
|2. 1 X USB Charge Cable|
|3. 1 X 3.5mm Cable|
|4. 5 X Velcro Strips|
|5. 2 X Rubber band|
|6. 1 X Rubber Pad|
|7. User Manual|
|8. Warranty Card|
₹ 8,999/- ₹ 14,999/-
₹ 11,999/- ₹ 13,999/-
|DAC Chip||ESS Sabre ES9038Q2M||Cirrus Logic CS4350||Burr Brown|
|Sample Rate||32-bit/768kHz||24-bit/48 kHz||32-bit/384kHz|
|Battery Life||18 Hours||28 Hours||5 Hours|
|Outputs||3.5mm||3.5mm||2.5mm & 3.5mm||4.4mm, 3.5mm, RCA|
|Digital Inputs||Mirco USB||Mirco USB||USB3.0 B|
|Output level||545mW@32ohm||4.4mm 330mW@32 Ohm
S-BAL 230mW@32 Ohm;
|Signal to Noise Ratio||120dB||120dB||116dB|
|Bluetooth Codecs||aptX HD, aptX, AAC & SBC|
"The NX4DSD uses good parts: an Alps switched potentiometer, a high grade USB decoder chip (XMOS XU208), the very detailed ESS9038Q2M dac chip, and quality opamps (OPA1652, OPA2140, OPA1688)."
"This little device can transform your favorite wired headphones wireless and capable of high-resolution audio streaming thanks to its aptX HD support."
"The iFi Zen Dac is one of the best entry-level DACs you can buy. It sounds great, has a ton of features, and can grow with your system as your tastes evolve."
Don't sweat it, this TOPPING NX3s comes with a 1 year warranty on the Amp/DAC and 6 months warranty on the battery. TOPPING's warranty covers all manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about TOPPING's warranty in India.
Show Your DAC/AMP some love, get a headphone that unleashes its true potential
I am really satisfied with the performance of Topping NX3s, currently using with my Beyerdynamics DT770 pro 250 Ohm headphone. It is able to drive 250 Ohm headphone with ease. I really liked this purchase and Headphone Zone was quick toe deliver it as well. Thanks
Has enough juice to power HD 660s and HE400i to very high volumes. The provided 3.5mm male to male jack is noisy and need to replace it with a proper cable. Pairing this with a fiio btr1k as a dac input you have a very capable budget bluetooth dac-amp combo.
Firstly, great job by HPZ for a quick delivery.
My first Portable Headphone amp and a solid state at that. I have always used and own a host of Tube based Headphone amps so did not know what to expect.
My need was very straightforward. A portable solution for my HD600 and HD25 with some Grado thrown in.
So I approached this with a certain amount of scepticism. On first switch on, I was left a bit underwhelmed. Other than loudness, I felt everything sounded hard, brittle and was just not musical. Assuming that it was too new and does require burn in, I left it running for a few hours before trying it out again. While there was some amount of improvement, it was not quite up there.
Then, just for fun, I tried it with one of my PX100 ii headphones. Now there was a noticeable improvement. Confused, I was trying to understand how is it that my PX100 ii was sounding so much better than my HD25?? Multiple AB testing validated this fact.
Anyways, I left the amp running in with my HD25 connected for a few hours. This brought about an immediately noticeable difference. Everything started falling into place. This improvement continued and is still continuing.
It was then I realised that I had ignored the age of my HD25s. They too had just about 5 hours on them. So....in effect, both the Headphone and the Amp were burning and hence the fluctuating results.
Now after approx. 10 hours on both and many more to go the sonics are great and now outpace the PX100ii by miles especially in the detail and clarity characteristics.
I have already ordered additional OPamps from Texas Instruments which should be with me by tomorrow.
Can't wait to get everything run in. Happy Happy Happy
Moral of the story - Never run in 2 new products together.
The OpAmp undergoes the maximum change in performance after burn in.
If I had 1 crib it is that there no specifically designed case that will help me make it truely portable. Also, I wish the patch cable would be an inch longer.
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