iBasso AMP8 MK2S Special Edition 2023

The AMP8 MK2 Speical edition (AMP8MK2S) is based on the AMP8 MK2. It is tuned with a:

  • Sprague axial capacitor
  • WIMA film capacitor
  • ELNA Silmic2 electrolytic capacitors


Please note, you must use the current firmware with your DX240 for this amp card to work !!!


4.4mm TRRRS Balanced, 3.5mm TRS SE AMP module for the DX240

​

Color: Black


MAIN FEATURES:

  • +/-8V high voltage swing* This significantly improves dynamics and headroom, resulting in a more accurate sound that is true to the recording.

  • AMP8 MK2 is dedicated to the DX240 and features both a high voltage and current output. High current output is very useful for low impedance multi drivers in-ear monitors.

  • Low VCE transistors are utilized and are manually sorted and paired, providing better consistency and linearity. The low VCE also expands the linearity range.

  • The transistors used on the buffer stage have a 2000mA output current rating, which are the same as the AMP11 MK2’s transistors, which allows the AMP8 MK2 to drive lEMs and headphones that require high current, with ease.

  • A Pentaconn 4.4mm balanced output port is used and with the large contact area of this socket, resistance is lowered achieving better current transmission, equating to better resulting sound.


AMP8 DISCRETE BALANCED AMPLIFIER CARD

When using OPAMPs to develop an amplifier, it is almost impossible to achieve high voltage output and high current output, especially, on a portable devices. Some engineers have used the TPA6120 on the buffer stage to achieve 750mA output current. However, it has 10ohm output impedance, which isn’t ideal for low impedance lEMs or headphones. So, we decided to use discrete components which are usually used on desktop amplifiers. We present the AMP8 MK2 that has both high voltage and high current output and at the same time maintaining low output impedance with extremely good measurements. AMP8 MK2S complements the premium performance of the DX240, giving you even more choices when playing the music you enjoy.

It is all about you and the Music!


Technical specification

 

4.4mm Headphone Out:

  • Maximum Output Level: 6.2Vrms
  • Output Power: 980mW@32ohm, 128mW@300ohm
  • Frequency Response: 10Hz-45kHz (+/- 0.3dB)
  • S/N: 125dB
  • Dynamic Range: 125dB
  • THD+N: -114dB (NO LOAD), -113dB (@300ohm), -101dB(@32ohm)
  • Crosstalk: -122dB
  • Output Impedance: 0.55ohm


3.5mm Headphone Out:

  • Maximum Output Level: 3.1Vrms
  • Output Power: 281mW@32ohm, 32mW@300ohm
  • Frequency Response: 10Hz-45kHz (+/- 0.3dB)
  • S/N: 122dB
  • Dynamic Range: 122dB
  • THD+N: -110dB (NO LOAD), -109dB (@300ohm), -98dB (@32ohm)
  • Crosstalk: -117dB
  • Output Impedance: 0.32ohm
  • Average Play Time: 9.5 hours*


*The play time varies with different resolutions and headphone/IEM loads.