Hisoundaudio AMP3 Pro 2
Dec 30th, 2009 | By DavidThe full manual can be downloaded from the Hisoundaudio website.
Specifications
Earphone amplifier grade: Grade A (class A) circuit design.
Bundled earphone: PAA-1 high fidelity earbud
Frequency Response: 26Hz-23kHz (earphone)
Sensitivity (dB): 98dB (earphone)
Impedance: 32 ohm earphone (earphone)
Power-Handling: 100mW peak / 30mW rated (earphone)
Memory capacity: 4 GB
Card Compatibility: microSDHC
Maximum compatible capacity of the Memory cards: 16 GB
Battery continually playing time: > 100hours (volume set at 8 degree)
Compatible formats: MP3, WMA, WAV, FLAC
Screen: 1 inch OLED
Color available: Brushed Silver and black
USB type: mini USB 2.0
Dimension: 74.5 L X 40 W X 20 H (MM)
Weight:100G
Price: $159 MSRP
With a class A amplifier built in and ‘high fidelity’ earbuds and FM tuner, I am curious as to the real sound quality of the AMP3. Although sound quality is very subjective, there are technical areas that can be compared and noticed such as treble, bass, soundstage, etc. to help describe sound. This will be further explored in the sound quality section of this review. At $159 and 4 GB, the price is very attractive compared to other players on the market.
Now that we have had a taste of the AMP3 on paper, let’s take a look at the real thing.
i suppose they’ll improve the ui, and the looks is ok with me, but:
4+16 G is too low to expect us to use flac or wma at 320 kbps or mp3 at 320 kbps, with low storage (and the need to carry a lot of songs) you have to use low bit rates, and for that it is recomended to use he-aac -many codec comparisons show it-, (nokia suggest 48 kbps, i use 50-70 kbps).
i don’t want to reconvert my music (nor i have ‘master’ copies at high rate to do it) so to atract customers that already have their music in he-aac, the ones that have aac from itunes, etc., the player needs to support that. this is for PORTABLE uses (and even at home i don’t have a silent environment).
also, the player ir supposed to be forgiving of low bit rates (or the radio, or whatever is put on the line-in ).
for same, it’ll be good if they put a noise cancelling function.
I agree for the He-AAC. Also, I need WMA-PRO10 support for some 64 kbps files.
At high bitrates there’s little difference between codecs, but at 48 kbps He-AAC is the best.