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Astell & Kern Hi Res Digital Media Players Comparison Chart

Astell & Kern Digital Media Players Comparison Chart

Digital Media & Music Player Comparison
Astell & Kern AK70, AK100 II, AK120 II, AK240, AK300, AK320 & AK380

5 Main Summary Points for each media player

1. The AK70 has:

  • Cirrus Logic CS4398 x1 (Single DAC)
  • 64GB internal memory
  • DSD to PCM
  • 24bit 192kHz Bit to Bit
  • 32bit audio is downsampled using a sample-rate converter

2. The AK100 II has:

  • a Single Cirrus Logic CS4398 DAC (converts DSD playback to PCM)
  • lower output from single ended & balanced output (1.7vrms single ended, 2.0vrms balanced)
  • 64gb internal memory
  • the body is not scratch resistant
  • a 3150mah Li-Polymer battery

3. The AK120 II has:

  • a Dual Cirrus Logic CS4398 DAC (converts DSD playback to PCM)
  • same power output as the AK240 (2.1vrms single ended, 2.3vrms balanced)
  • 128gb internal memory
  • the body is not scratch resistant
  • a 3250mah Li-Polymer battery

4. The AK240 has:

  • a Dual Cirrus Logic CS4398 DAC with XMOS Sound Processor for Native DSD playback up to DSD128
  • 256gb internal memory
  • a duralumin scratch resistant body with real carbon fiber back plate
  • a 3250mah Li-Polymer battery
  • Native DSD Support

5. The AK300 has:

  • AK4490's Single DAC-DAC
  • 64GB internal memory
  • DSD to PCM
  • 24bit 192kHz Bit to Bit
  • Femto Clock Delivers True Original Sound

6. The AK320 has:

  • AK4490 x2 (Dual DAC)
  • 128GB internal memory
  • DSD to PCM
  • 24bit 192kHz Bit to Bit
  • 200 Femto Second VCXO Reference Clock

7. The AK380 has:

  • AKM AK4490 x 2 (Dual DAC)
  • 256GB internal memory
  • Geared for the pro sound group and audiophiles who demand the very best.
  • 32bit/384kHz Bit to Bit Playback
  • 3 color options

8. The AK380SS has:

  • Limited Edition Stainless Steel Package, Stainless Steel Player, Stainless Steel Amp, Van Nuys case
  • AKM AK4490 x 2 (Dual DAC)
  • 256GB internal memory
  • 32bit/384kHz Bit to Bit Playback
  • Native DSD Playback
 

AK 300 Series

Model AK380 AK320 AK300
Images AK380 Digital Music & Media Player AK320 USB DAC Headphone Amp AK300 Digital Music & Media Player
Body Color Meteoric Titan, Black & Copper, Stainless Steel Gun Metal Midnight Black
Body Material Aircraft Grade Duralumin / Copper / Stainless Steel Aluminum Aluminum
Dimensions 3.14” [W] x 4.42” [H] x 0.68” [D]

79.8 mm [W] x 112.4 mm [H] x 17.5 mm [D]
2.95” [W] x 4.42” [H] x 0.64” [D]

75.15 mm [W] x 112.4 mm [H] x 16.45 mm [D]
2.95 ” [W] x 4.42 ” [H] x 0.60 ” [D]

75.15 mm [W] x 112.4 mm [H] x 15.45 mm [D]
Weight 7.68 oz. (218 g) 7.65 oz. (217 g) 7.23 oz (205 g)
Output Level Unbalance 2.2Vrms / Balance 2.3Vrms(Condition No Load) Unbalance 2.2Vrms / Balance 2.3Vrms(Condition No Load) Unbalance 1.98Vrms / Balance 1.98Vrms (Condition No Load)
DAC AKM AK4490 x 2(Dual DAC) AKM AK4490 x 2(Dual DAC) AKM AK4490 x1 (Single DAC)
Frequency Response ±0.053dB (Condition: 20Hz~20kHz)Unbalanced & Balanced/

±0.56.dB (Condition: 10Hz~70kHz) Unbalanced: / ±0.55.dB (Condition: 10Hz~70kHz) Balanced
±0.053dB (Condition: 20Hz~20kHz)Unbalanced & Balanced

/ ±0.56.dB (Condition: 10Hz~70kHz) Unbalanced: / ±0.55.dB (Condition: 10Hz~70kHz) Balanced
±0.075dB (Condition: 20Hz~20kHz) Unbalance & Balance

±0.56dB (Condition: 10Hz~70kHz) Unbalance / ±0.55dB (Condition: 10Hz~70kHz) Balance
Signal to Noise Ratio 16dB @ 1kHz, Unbalanced / 117dB @ 1kHz, Balanced 116dB @ 1kHz, Unbalanced / 117dB @ 1kHz, Balanced 116dB @ 1kHz, Unbalance / 116dB @ 1kHz, Balance
Crosstalk 130dB @ 1kHz, Unbalanced / 135dB @ 1kHz, Balanced 130dB @ 1kHz, Unbalanced / 135dB @ 1kHz, Balanced 130dB @ 1kHz, Unbalance / 130dB @ 1kHz, Balance
THD+N 0.0008% @ 1kHz, Unbalanced / 0.0007% @ 1kHz, Balanced 0.0008% @ 1kHz, Unbalanced / 0.0007% @ 1kHz, Balanced 0.0008% @ 1kHz, Unbalance / 0.0007% @ 1kHz, Balance
IMD SMPTE 0.0007% 800Hz 10kHz (4:1) Unbalanced/

0.0006% 800Hz 10kHz (4:1) Balanced
0.0007% 800Hz 10kHz (4:1) Unbalanced/

0.0006% 800Hz 10kHz (4:1) Balanced
0.0007% 800Hz 10kHz(4:1) Unbalance /

0.0006% 800Hz 10kHz(4:1) Balance
Output Impedance Balanced out 2.5mm (1ohm) / Unbalanced out 3.5mm (2ohm) Balanced out 2.5mm(1ohm)/ PHONES 3.5mm(2ohm) Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)
Clock Jitter 30ps(Typ) / Reference Clock Jitter (VCXO Clock) 0.2ps (Typ) 30ps(Typ) / Reference Clock Jitter 200 Femto Seconds 30ps(Typ) / Reference Clock Jitter 200 Femto Seconds
Memory Built-in : 256GB [NAND] / External : microSD (Max. 128GB) x 1 Built-in : 128GB [NAND] / External : microSD (Max. 128GB) x1 Built-in : 64GB [NAND] / External : microSD (Max. 128GB) x1

AK240, AK70 & AK100 Series

Model AK240 AK120II AK100II AK70
Images AK240 DAC Digital Music & Media Player AK120 II Dual-Dac Music & Media Player AK100 II Music & Media Player AK70 Digital Music Player
Body Color Gun Metal Stone Silver Smoky Blue Misty Mint
Body Material Aircraft Grade Duralumin Aluminum Aluminum Aluminum
Dimensions 2.59" [W] x 4.21" [H] x 0.68" [D]

66 mm [W] x 107 mm [H] x 17.5 mm [D]
2.16" [W] x 4.64" [H] x 0.58" [D]

55 mm [W] x 118 mm [H] x 14.9 mm [D]
2.16" [W] x 4.37" [H] x 0.58" [D]

55 mm [W] x 111 mm [H] x 14.9 mm [D]
2.37" [W] x 3.81" [H] x 0.51" [D]

60.3 mm [W] x 96.8 mm [H] x 13 mm [D]
Weight 6.5 oz (185 g) 6.24 oz (177 g) 5.99 oz (170 g) 4.66 oz (132 g)
Output Level Unbalance 2.1Vrms / Balance 2.3Vrms(Condition No Load) Unbalance 2.1Vrms / Balance 2.3Vrms(Condition No Load) Unbalance 2.0Vrms / Balance 1.7Vrms(Condition No Load) Unbalance 2.3Vrms / Balance 2.3Vrms (Condition No Load)
DAC Cirrus Logic CS4398 x2(Dual DAC) Cirrus Logic CS4398 x2(Dual DAC) Cirrus Logic CS4398 x1(Single DAC) Cirrus Logic CS4398 x1 (Single DAC)
Frequency Response ±0.023dB (Condition: 20Hz~20kHz) Unbalanced & Balanced

/ ±0.3dB (Condition: 10Hz~70kHz) Unbalanced & Balanced
±0.023dB(Condition: 20Hz~20kHz) Unbalanced & Balanced

/ ±0.3dB(Condition: 10Hz~70kHz) Unbalanced & Balanced
±0.025dB(Condition: 20Hz~20kHz) Unbalanced & Balanced

/ ±0.6dB(Condition: 10Hz~70kHz) Unbalanced & Balanced
±0.075dB (Condition: 20Hz~20kHz) Unbalance & Balance ±0.56dB (Condition: 10Hz~70kHz) Unbalance

/ ±0.55dB (Condition: 10Hz~70kHz) Balance
Signal to Noise Ratio 116dB @ 1kHz, Unbalanced / 117dB @ 1kHz, Balanced 116dB @ 1kHz, Unbalanced / 117dB @ 1kHz, Balanced 115dB @ 1kHz, Unbalance / 115dB @ 1kHz, Balance 116dB @ 1kHz, Unbalance / 116dB @ 1kHz, Balance
Crosstalk 130dB @ 1kHz, Unbalanced / 135dB @ 1kHz, Balanced 130dB @ 1kHz, Unbalanced / 135dB @ 1kHz, Balanced 127dB @ 1kHz, Unbalanced / 130dB @ 1kHz, Balanced 130dB @ 1kHz, Unbalance / 130dB @ 1kHz, Balance
THD+N 0.0007% @ 1kHz, Unbalanced / 0.0005% @ 1kHz, Balanced 0.0007% @ 1kHz, Unbalanced/ 0.0005% @ 1kHz, Balanced 0.0009% @ 1kHz, Unbalanced / 0.0008% @ 1kHz, Balanced 0.0008% @ 1kHz, Unbalance / 0.0007% @ 1kHz, Balance
IMD SMPTE 0.0004% 800Hz 10kHz(4:1) Unbalanced

/ 0.0003% 800Hz 10kHz(4:1) Balanced
0.0004% 800Hz 10kHz(4:1) Unbalanced

/ 0.0003% 800Hz 10kHz(4:1) Balanced
0.0004% 800Hz 10kHz(4:1) Unbalanced

/ 0.0003% 800Hz 10kHz(4:1) Balanced
0.0007% 800Hz 10kHz(4:1) Unbalance

/ 0.0006% 800Hz 10kHz(4:1) Balance
Output Impedance Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm) Balanced out 2.5mm (1ohm)/ PHONES 3.5mm (2ohm) Balanced out 2.5mm (1ohm)/ PHONES 3.5mm (2ohm) Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)
Clock Jitter 50ps (Typ) 50ps (Typ) 50ps (Typ)
Memory Built-in : 256GB [NAND]/ External : microSD (Max 128GB) x1 Built-in : 128GB [NAND ]/ External : microSD (Max 128GB) x1 Built-in : 64GB [NAND] / External : microSD (Max 128GB) x1 Built-in : 64GB [NAND] / External : microSD (Max 200GB) x1

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