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AMP
All-in-One Module, SEM2
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  • Next Generation AMP Technology

    Next Generation
    AMP Technology

  • TERATON ALPHA

    TERATON ALPHA

  • Up to 32bit/768kHz/ Native DSD512

    Up to 32bit/768kHz/
    Native DSD512

  • AKM AK4497EQ Dual-DAC

    AKM AK4497EQ
    Dual-DAC

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All-in-one Module SEM2

SEM2 is an Interchangeable All-in-One module for the SE180
Shape your Sound with the Asahi Kasei AK4497EQ Dual DAC SEM2
Give your SE180 a different sound than the bundled module
SEM2 supports up to 32bit/768kHz / Native DSD512

Next Generation Advanced AMP Technology

Next generation AMP technology is also applied in the SEM2 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.

Even with a high output, the signal-to-noise (SNR), one of the important measurements of audio performance, boasts an amazing 127dB (based on AK4497EQ Dual, Balanced, High Gain).

Circuit Separation Structure of Main Body and Module

By physically separating the main body from the All-in-One module, we completely block 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.

Main detail_02
DAC Module detail_03

Astell&Kern Audio Technology Forms the TERATON ALPHA Sound Solution

AK ULTIMATE SOUND SOLUTION, TERATON ALPHA

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 sound close to the original sound the artist and producer intended.

Discover more

Specification

  • General Specifications
    • Product Name

      SEM2

    • Model

      PAP12

    • 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

    • Output

      Unbalanced Out (3.5mm), Balanced Out (2.5mm, only 4-pole supported / 4.4mm, 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

      AKM AK4497EQ x2 (Dual DAC)

    • Decoding

      Support up to 32bit / 768kHz Bit-to-Bit playback

    • Dimensions

      3.03"(77mm)[W] x 2.99"(76mm)[H] x 0.78"(19.9mm)[D]

    • Weight

      3.53oz (100g)

    • Operating Temperature

      0℃ ~ + 40℃ (32℉~ 104℉)

    • Playback Time

      about 10.5hours (FLAC, 16bit, 44.1kHz, Vol.50, LCD Off)

  • Audio Performance
    • Frequency Response

      ±0.07dB (Condition : 20Hz~20kHz) Unbalanced / ±0.06dB (Condition : 20Hz~20kHz) Balanced
      ±0.68dB (Condition : 20Hz~70kHz) Unbalanced / ±0.67dB (Condition : 20Hz~70kHz) Balanced

    • Signal to Noise Ratio

      [Normal Gain] 122dB @ 1kHz, Unbalanced / 124dB @ 1kHz, Balanced
      [High Gain] 125dB @ 1kHz, Unbalanced / 127dB @ 1kHz, Balanced

    • Crosstalk

      [Normal Gain] -138dB @ 1kHz, Unbalanced / -145dB @ 1kHz, Balanced
      [High Gain] -138dB @ 1kHz, Unbalanced / -147dB @ 1kHz, Balanced

    • THD+N

      [Normal Gain] 0.0006% @ 1kHz, Unbalanced / 0.0005% @ 1kHz, Balanced
      [High Gain] 0.0008% @ 1kHz, Unbalanced / 0.0006% @ 1kHz, Balanced

    • IMD SMPTE

      0.0002%, 800Hz 10kHz (4:1), Unbalanced / 0.0002%, 800Hz 10kHz (4:1), Balanced

    • Output Impedance

      3.5mm (1ohm) / 2.5mm (1.5ohm) / 4.4mm (1.5ohm)

  • Etc.

    • - Audio was NOT muted during the measurement.
      - The image/specification may be changed without notice to improve product performance and quality.

  • Price
    • Price

      $ 350