Power
Strong consensus · 7 srcThe least controversial thing about it. 2.5 W into 32 ohms from an ordinary single-ended jack is more than most of the price class manages from a balanced output, and three gain settings stretch that across sensitive IEMs and 300-ohm dynamics alike. Reviewers drove everything from Arya Stealths to a Susvara Unveiled without running out. The one real caveat is at the extreme: distortion climbs into low-impedance loads at high output, and ASR's listening test heard it turn bright and crunchy past about 3 o'clock on a 27-ohm planar.
“The headphone amp is powerful for its class and triple gain settings is nice.”
amirm · Audio Science Review
“The Magni Unity delivers 2.5 Watts into 32 Ohms.”
John Darko · Darko.Audio
“It won't defy science or power headphones like the Modhouse Tungsten, but that is true of most amplifiers!”
Douglas Moore · The Sound Advocate
Schiit rates 3.0 W into 16 ohms, 2.5 W into 32 ohms, 415 mW into 300 ohms and 220 mW into 600 ohms, with output impedance under 0.1 ohm at the 1/4-inch jack and gain settings of -10 dB, 0 dB and +15 dB. ASR's bench confirms ample output but notes distortion rising at the limit, especially into low impedance.
⚠ vs. listeners — Everyone agrees the headroom is there; the disagreement is only about the top of the range. Amir heard audible distortion above roughly 3 o'clock on a 27-ohm Dan Clark E3 and concluded the Unity is not the end-game amp Schiit calls it, while reviewers running higher-impedance or less demanding loads never reached that point.
