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AMP8 Mk2 Balanced Amplifier Card for DX240

$219.00
In Stock

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

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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

Improve dynamics and headroom for more accurate sound from your DX240 with the AMP8 MKII balanced amp card.

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 is a completely new circuit design that is dedicated to the DX150/DX200 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 2700mAh output current rating, which allows the AMP8 to drive IEMs and headphones that require high current with ease.
  • A Pentaconn 4.4.mm balanced output port is used. The large double contact area of this socket contact lowers resistance and allows better current transmission.

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 device. 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 IEMs or headphones. So, we decided to use discrete components which are usually on desktop amplifiers to develop the AMP8 but the development process is much more difficult when using discrete components. After a long development period and with our final design, we present the AMP8 card that has both high voltage and high current output and at the same time maintains low output impedance with extremely good measurements. AMP8 compliments the premium performance of the DX150 and the DX200, giving you even more choices when playing the music you enjoy.

iBasso Amp Comparison

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AMP8 MKII
$219 USD
Compatibility
DX240

Output Level
3.1V Single-ended
6.2V Balanced
Impedance
[email protected] (SE)
[email protected](Bal)
[email protected](SE)
[email protected] (SE)


Outputs
3.5mm TRS
4.4mm TRRS
AMP8
$219 USD
Compatibility
DX220
DX200
DX150
Output Level
3.1V Single-ended
6.2V Balanced
Impedance
300.3125mW @32Ohm (SE)
1201.25mW @32Ohm (Bal)
32.03mW @300Ohm (SE)
128.13mW @300Ohm (Bal)
13.016mW @600Ohm (SE)
64.06mW @600Ohm (Bal)
Outputs
4.4mm TRRS
 
DC01
$75 USD
Compatibility
USB A Devices
USB C Devices
 
Output Level
1.9V Balanced
 
Impedance
---
112.8125mW @32Ohm (Bal)
---
12.03mW @300Ohm (Bal)
---
6.016mW @600Ohm (Bal)
Outputs
2.5mm TRRS
 
DC02
$79 USD
Compatibility
USB A Devices
USB C Devices
 
Output Level
0.95V Single-ended
 
Impedance
28.203125mW @32Ohm (SE)
---
3.0083mW @300Ohm (SE)
---
1.50416mW @600Ohm (SE)
---
Outputs
3.5mm TRS
 

*Sampling Rate of PCM 768kHz/ DSD 256 with Roon requires the latest A10301 firmware update. Earlier firmware versions support PCM 384kHz/ DSD 128.

4.4mm Headphone Out:

Maximum Output Level 6.2Vrms
Output Power ∫ [email protected]
[email protected]
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 ∫ [email protected]
[email protected]
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.)

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