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Powerhouse Performance in a Compact Design

If your old amp has been struggling to keep up with your power-hungry cans, its time for an upgrade. The H400 laughs in the face of high impedance, pushing out up to 15W per channel at 16. Those 600 studio monitors youve been eyeing? Theyll finally sound the way theyre supposed to. And for those days when you just want to kick back, the full-function remote control puts all the power in your handsliterally. With a high-efficiency, low-noise power supply tucked inside, the H400 runs cool and quiet, even when youre cranking it up for hours on end.

Serious power for your headphones

Ever tried to drive high-impedance headphones with an amp thats barely awake? Weve all been thereflat sound, no dynamics, frustration. The H400 laughs in the face of underpowered setups, pushing up to 15W per channel at 16. Even those 600 studio monitors wont make it break a sweat. Expect vibrant sound, punchy bass, and an overall kickass audio experience.

Gain for days

One gain fits all? Nah. The H400 understands that sometimes you need to dial it back or crank it up. With high, medium, and low gain settings, you can customize the output to match your headphones and mood. Whether youre whispering through a pair of sensitive in-ears or blasting a set of demanding cans, the H400 has you covered.

No pops, no clicks, just clean transitions

Theres nothing like the heart-stopping pop when you turn on your gear. Its a jarring reminder that maybe your setup isnt as refined as it could be. The H400 keeps things classy with a design that eliminates power-on and switching noise. Power it up, flip those gain settings, and enjoy the silenceuntil the music kicks in.

A preamp with a purpose

Versatility? The H400 nails it. Besides driving your headphones, it doubles as a high-end preamp. Connect it to your power amps or active speakers, and youre in business.

Lazy-day approved

You know whats annoying? Having to get up to tweak your amps settings. The H400 takes that inconvenience and throws it out the window. Its full-function remote lets you control everything from volume to gain without moving an inch. Perfect for those Im not getting up listening sessions.

Fully balanced design for pristine sound

The SMSL H400s fully balanced discrete component design keeps things in check, delivering cleaner sound, sharper separation, and a listening experience that feels like you're right there with the music.

Electronic relay volume control

Remember the days of scratchy volume pots and channel imbalance? Yeah, those are over. The H400 uses electronic relays for volume control, ensuring precise adjustments and flawless sound quality at every level.

Aluminium housing and low-noise power supply

Looks arent everything, but they dont hurt either. The H400 sports a sleek, silver aluminium body thats right at home on any desk. And with its high-efficiency, low-noise power supply, it stays cool and quietletting your music take center stage without a hitch.