Astell & Kern AK100II 64GB portable music player WITH sealed A&K Pem11 USB docking stand for charging ($250.00 value). Smokey Blue unit is like new, used once. It sounds phenomenal for the price. I liked it so much I decided to step up to the AK240. Its protective tape is still attached to the screen.Priced firmly and fairly at $829.00 including shipping. PayPal, add 3% please, or pay by check w/ shipment when it clears. If you’re looking at this, you’re probably familiar with highly regarded player. Quick review here: http://headphone.guru/astell-kern-ak100-ii-portable-pleasure/ Quoting from audiovisionssf.com “A new standard for listening to music was proposed while developing the AK100ii…
We recognized that certain aspects of the AK100 needed improvement during research and development for a successor.
While considering how to improve the AK100, we realized that there was a difference between measured audio specifications and what we felt sounded good. After much deliberation, our development efforts were focused on making the AK100 2nd Generation "feel" right to our senses rather than mechanically boosting technical specs. The original AK100 was developed according to audio specification standards, but development of the next-generation AK100 was developed to the "New Standard" of how the music sounds. We present "A New Standard in Listening to Music" with the AK100 2nd Generation. Although the dramatic depth in sound quality delivered by the Balanced Out was proven in our flagship model, we wondered if the same benefit could be gained by implementing the Balanced Out with a Single DAC. The newly designed demo board delivered the ear-pleasing sound quality we needed. The value of a Balanced Out with a Single DAC is confirmed with every musical note. The AK100 2nd Generation provides a rich, warm sound experience through the re-tuned A-amp designed specifically for the CS4398 Single DAC. Unbalanced vs. Balanced Output
The unbalanced method is the most commonly used basic method which consists of “left and right signals + ground line”. This setup includes a ground line which blocks out external noises from the outside. However, since the ground line cannot block out all of the external noises completely, external noises can be mixed into the signals that are transmitted, which then result in changes to the sound. The longer the signals travel, the more external noises that will be mixed into the sound which is why it is used within a short distance of 1 to 2 meters. Unlike the unbalanced method, the balanced method has an additional cold signal to compliment the hot signal which reduces the external noises. The AK100 2nd Generation fully supports USB DAC. The AK100 2nd Generation also functions as an external DAC (sound card) when connected to a PC or Mac via USB. The AK100 2nd Generation's sound quality is available for stored music on any PC or Mac as it serves as a built-in sound card.
- - The AK100 2nd Generation supports up to UAC 1.0 (USB Audio Class 1.0) Output (24 bit, 96 kHz) via USB DAC, and EQ settings are not applied.
Features
AK100ii Smoky Blue Aluminum with 3.31inch WVGA (480 x 800) AMOLED Touchscreen
Plays: WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
FLAC, WAV, ALAC, AIFF : 8kHz ~ 192kHz (8/16/24bits per Sample)
/ DSD : DSD64 (1bit 2.8MHz), Stereo / DSD128 (1bit 5.6MHz), Stereo
Unbalance 2.0Vrms / Balance 1.7Vrms (Condition No Load)
Cirrus Logic CS4398 x1 (Single DAC)
Support up to 24bit/192kHz Bit to Bit Decoding
USB Micro-B input (for charging & data transfer (PC & MAC))
/ Connection Mode : MTP (Media Device)
PHONES (3.5mm) / Optical Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
802.11 b/g/n (2.4GHz)
V4.0
2.16 ”(55 mm) [W] x 4.37 ”(111 mm) [H] x 0.58 ”(14.9 mm) [D]
5.99 oz (170 g)
Firmware upgrades supported (OTA)
Audio Performance
Frequency Response: ±0.025dB (Condition: 20Hz~20kHz) Unbalance & Balance
/ ±0.6dB (Condition: 10Hz~70kHz) Unbalance & Balance
Signal to Noise Ratio: 115dB @ 1kHz, Unbalance / 115dB @ 1kHz, Balance
127dB @ 1kHz, Unbalance / 130dB @ 1kHz, Balance
Crosstalk: 0.0009% @ 1kHz, Unbalance / 0.0008% @ 1kHz, Balance
THD+N: 0.0004% 800Hz 10kHz(4:1) Unbalance / 0.0003% 800Hz 10kHz(4:1) Balance
IMD SMPTE
Output Impedance: Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)
Clock Jitter: 50ps (Typ)
Battery Capacity: 3,150mAh 3.7V Li-Polymer Battery Memory: Built-in Memory, External Memory: 64GB [NAND] microSD (Max 128GB) x1
Supported OS: Windows XP, Windows 7,8 (32/64bit), MAC OS X 10.7 and up”
|
