Astell&Kern AK PA10 Class A Amplifier (Released on March 2023)

• Astell & Kern has been researching and developing AMP technology to deliver the pure original of audio.
• AK PA10 is the first AK model to introduce a Class-A analog AMP based on Astell & Kern's know-how in AMP circuit design technology, and it offers the natural and spacious analog sound of Class-A AMO enhanced further with our proprietary TERATON ALPHA technology.

Enjoy the pure analog sound of Astell & Kern with AK PA10's Current/ Gain/ Crossfeed options for digital audio platers and source devices.

Specification:

• Body Color: Graphite Gray
• Body Material: Aluminum & Silicone
• Analog Inputs: Unbalanced 3.5mm / Balanced 4.4mm
• Headphone Outputs: Unbalanced 3.5mm / Balanced 4.4mm
• Input Max Level: Unbalanced 2Vrms / Balanced 4Vrms
• Output Level: (1) [Low Gain] Unbalanced 2.1Vrms / Balanced 4.2Vrms (Condition No Load), (2) [High Gain] Unbalanced 3.1Vrms / Balanced 6.2Vrms (Condition No Load)
• Dimensions: 2.87"(73mm)[W] x 5.51"(140mm)[H] x 0.91"(23.3mm)[D]
• Weight: about 11.46oz (325g)
• Charging Port: USB C Type
• Operating Temperature: 0℃ ~ + 40℃ (32℉~ 104℉)

Audio Performance: 

• Frequency Response: (1) [Low Gain] ±0.2dB (Condition : 20Hz~20kHz) Unbalanced / ±0.2dB (Condition : 20Hz~20kHz) Balanced, (2) [High Gain] ±0.06dB (Condition : 20Hz~20kHz) Unbalanced / ±0.06dB (Condition : 20Hz~20kHz) Balanced
• S/N:  (1) [Low Gain] 111dB @ 1kHz, Unbalanced / 115dB @ 1kHz, Balanced, (2) [High Gain] 114dB @ 1kHz, Unbalanced / 117dB @ 1kHz, Balanced
• THD+N: (1) [Low Gain] 0.0045% @1kHz, Unbalanced / 0.0015% @1kHz, Balanced, (2) [High Gain] 0.0027% @1kHz, Unbalanced / 0.0013% @1kHz, Balanced
• Crosstalk: (1) [Low Gain] -83dB @ 1kHz Unbalanced / -110dB @ 1kHz Balanced, (2) [High Gain] -83dB @ 1kHz Unbalanced / -110dB @ 1kHz Balanced
• Output Impedance: 3.5mm (1.1ohm) / 4.4mm(1.3ohm)
• Battery: (1) Capacity: 4,200mAh 3.8V Li-Polymer, (2) Charge Time: About 3hours (Standard - 9V / 1.67A Fast Charging) | About 4hours (Standard - 5V / 2A General Charging), (3) Playback Time: about 12hours (Unbalanced / Input - 1Vrms / Low Gain / Volume 30%)

What's in the box ?

• AK PA10 Amplifier
• USB Type-C cable
• Line cable (approx. 10cm / 3.5mm 3-pole to 3.5mm 3-pole)
• Silicon band x 2
• Quick start guide