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SMSL SP400 Balanced THX Headphone Amplifier

Upgrade AfterDark. Clementine Power Cable

SMSL SP400 Balanced THX Headphone Amplifier

  • Innovated designed with all discrete output stage circuit, which has ultra low distortion, as low as 0.001%, and the output current for amplification.
  • 256 steps Relay volume control, for quite background, and Pre-Amplifier Function with XLR output
  • A fully balanced circuit design from inputs to outputs.
  • Use electronic volume control to ensure the volume level are the same for left and right channel.
  • Audio grade component and HIFI coupling capacitors. 
  • Protection with mute circuit and protection circuit, for headphones.
  • Built-in tone control function and SDB EQ mode, easily adapt your headphones.
  • Powered by a linear power supply, the all-aluminum CNC milling chassis to reduce magnetic noise.
  • The OLED display and user-friendly operating system are easy to understand and  can be operated by remote controller of M400. 


Input interface:Unbalanced (RCA) x 1, Balanced (XLR) x 1

Output interface :6.35mm headphone jack, balanced headphone jack, XLR PRE-OUTPUT

Unbalanced headphones 
16Ω 6W 
32Ω 3W 
300Ω 440mW 
600Ω 220mW

SNR :-123dB 

Balanced headphones
16Ω 12W 
32Ω 6W 
300Ω 400mW 
600Ω 200mW

SNR :-123dB

Power Consumption :40W
Standby power<0.1W
Size :225x210x43 (WxHxD)
Weight :1.0kg


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Type: DAC

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Discount code: PA1