Astell & Kern SEM3 Interchangeable All-in-One Module for the SE180

Model: 3PAP130C-CMSIN1 UPC: 821566018274 Item: 177345

Product Information

All-in-one Module

SEM3 is an Interchangeable All-in-One module for the SE180.

Shape your Sound with the ESS ES9038Q2M Quad DAC SEM3.

Give your SE180 a different sound than the bundled module.

SEM3 supports up to 32bit/768kHz / Native DSD512.


  • Next Generation AMP Technology
  • Up to 32bit/768kHz/ Native DSD512 ESS
  • ES9038Q2M Quad

Next-Generation Advanced AMP Technology

Next-generation AMP technology is also applied in the SEM3 all-in-one module.

From the selection of OP-AMP parts to circuit design, board layout, and tuning, everything has been completely redesigned to produce the best sound.

Circuit Separation Structure of Main Body and Module

By physically separating the main body from the All-in-One module, it completely blocks power and RF noise that may occur from the main body. This creates an independent structure that prevents noise from interfering with music playback. Balanced and unbalanced signals are separated for each channel to provide the best possible sound through independent circuit design without interference.

The SEM3 is equipped with four ES9038Q2M DACs, this allows two DACs per channel for dedicated decoding. The SEM3 achieves a more detailed and balanced sound with great depth and spatial realism.

Astell&Kern Audio Technology Forms the TERATON ALPHA Sound Solution

TERATON ALPHA is AK's ultimate Sound Solution to produce audio playback that is close to the original sound through the audio output interface by use of effective power noise removal, efficient power management, and amplification with minimal distortion.

TERATON ALPHA features Astell&Kern's patented technologies, which are the result of tens of thousands of hours of continuous research and development to produce the sound close to the original sound the artist and producer intended.



  • General Specifications
    • Product Name: SEM3
    • Model: PAP13
    • Body Material: Aluminum, Stainless Steel, Polycarbonate
    • Body Color: Moon Silver
    • Sample Rate: PCM : 8kHz ~ 768kHz (8/16/24/32bits per Sample) / DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo / DSD512(1bit 22.4MHz), Stereo
    • Outputs: Unbalanced Out (3.5mm), Balanced Out (2.5mm, only 4-pole supported / 4.4m, only 5-pole supported)
    • Output Level
      • [Normal Gain] Unbalanced 2Vrms / Balanced 4Vrms (Condition No Load)
      • [High Gain] Unbalanced 3Vrms / Balanced 6Vrms (Condition No Load)
    • DAC: ESS ES9038Q2M x 4(Quad DAC)
    • Decoding: Support up to 32bit / 768kHz Bit-to-Bit playback
    • Dimensions (W x H x D): 3.03" x 2.99" x 0.78"
    • Weight: 0.17 lb
    • Operating Temperature: 0? ~ + 40? (32?~ 104?)
    • Playback Time: about 13hours (FLAC, 16bit, 44.1kHz, Vol.50, LCD Off)
  • Audio Specifications
    • Frequency Response
      • ±0.05dB (Condition : 20Hz~20kHz) Unbalanced / ±0.068dB (Condition : 20Hz~20kHz) Balanced /
      • ±0.05dB (Condition : 20Hz~70kHz) Unbalanced / ±0.068dB (Condition : 20Hz~70kHz) Balanced
    • Signal to Noise Ratio
      • [Normal Gain] 121dB @ 1kHz, Unbalanced / 123dB @ 1kHz, Balanced
      • [High Gain] 124dB @ 1kHz, Unbalanced / 126dB @ 1kHz, Balanced
    • Crosstalk
      • [Normal Gain] -138dB @ 1kHz, Unbalanced / -143dB @ 1kHz, Balanced
      • [High Gain] -138dB @ 1kHz, Unbalanced / -145dB @ 1kHz, Balanced
    • THD+N
      • [Normal Gain] 0.0005% @ 1kHz, Unbalanced / 0.0004% @ 1kHz, Balanced
      • [High Gain] 0.0007% @ 1kHz, Unbalanced / 0.0006% @ 1kHz, Balanced
    • IMD SMPTE: 0.0007%, 800Hz 10kHz (4:1), Unbalanced / 0.0008%, 800Hz 10kHz (4:1), Balanced
    • Output Impedance: 3.5mm (1ohm) / 2.5mm (1.5ohm) / 4.4mm (1.5ohm)

What's in the Box

What's in the Box

  • SEM3 Interchangeable All-in-One Module for the SE180


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