SMSL H400chat_bubble_outlineFrom real comments

The H400 has plenty of power on tap for demanding headphones. Commenters describe the amp easily handling tricky loads. One owner runs Moondrop Venus headphones comfortably on high gain at just 25-30% volume through the H400, while another says their power-hungry planar magnetic headphones 'really sing' once paired with it. These accounts suggest the amp has real headroom for harder-to-drive gear rather than just easy-to-power headphones.

Swappable connectors and a sound-tuning feature add flexibility. One commenter noted that HD800-style connector compatibility would have been a genuine game changer for their setup had they not already ordered a custom cable. Another highlighted SMSL's 'audio color' feature, which lets users shift tonal character, calling it a real differentiator the brand has been building into its recent amps and DACs.

At roughly $510, the H400 splits opinion on value. One commenter flatly called the $510 price 'a big no' and said they don't see it as good value at that cost, hoping prices drop in the future. Others compare it to cheaper options, noting it costs about $80 more than the Schiit Jotunheim 2 and roughly $200 more than SMSL's own H300, prompting some to question the premium.