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Topping NX3 HiFi Portable Headphone Amplifier (Silver)
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- With DAC Decoder
- USB intelligent Charging
- 2400mAh large-capacity battery
- Charge output of computer USB port and variety of plugs
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|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||Maisy's Selection||Sharkoo||etailz||GMartGlobal||Smile&Satisfaction||K&M Camera Since 1976|
|Item Dimensions||3.6 x 2.3 x 0.4 in||3.31 x 2.17 x 0.39 in||2 x 0.3 x 2 in||4.88 x 2.6 x 0.59 in||5.63 x 3.82 x 1.38 in||4.88 x 2.6 x 0.59 in|
Color: Silver Description Innovation Power Supply Design With DAC Decoder USB intelligent Charging By internal NX3 it's a 2400mAh large-capacity litchium polymer battery,charging 0.5hour,it can work 5 hours. 220V working voltage can give full play to the op-amp and guarantee the good performance. NX3 is able to drive high impedance headphones which enough dynamic level range NX-3 can adapt to the charge output of computer USB port and varitey of plugs. It automatically adjust the suitable charging current with the fastest speed to supplement the battery. Specification Weight: 145g Min THD+N:0.0018% S/N:108db(RL=250Ω,GAIN=L) Dimensions: 66mmx108mmx13mm Battery: 2400mAh Rechargeable Frequency Response: 10Hz-100KHz Output Power: 103mW (RL=16Ω,THD+N=1%) 98mW (RL=32Ω,THD+N=1%) 30mW (RL=250Ω,THD+N=1%) Suitable Headphone Impedance: 16-300Ω SoundCard: PCM2704 HI-FI USB DAC SPDIF Package 1*NX3 Headphone 1*Audio Cable 1*USB Cable 1*Silicone Band 1*Velcro 1*Manual
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1. When the item arrived, the manufacturer's package had already been opened and the power switch was on, indicating that the item had probably been purchased by someone else and returned. Bad form.
2. After charging the item's battery (it was fully discharged, see comment #1, above) and connecting between my iPod and the Aux input of my truck radio, the best the item would deliver was unity gain - I heard no increase in the audio output of the truck radio, even with the item at full volume.
3. With the unit power off, it introduced a whine in the truck audio system.
4. Use of the Gain switch introduced distortion in the audio output.
5. The instructions, while in 8 languages, don't begin to describe how to use the item.
Even if this item was not designed for increasing volume in an automobile audio system, the other comments are enough for me to rate this as only one star.