There's a certain kind of audio gear that doesn't ask for your attention. It just sits there on the desk, does its job, and makes you feel slightly foolish for ever thinking you needed something more expensive. The Schiit Magni 3+ is exactly that piece of gear.
Jason Stoddard and Mike Moffat launched the original Magni back in 2012 as a direct answer to the "what do I drive headphones with" question that plagues every new audiophile. By the time the 3+ landed in 2018, they'd refined the formula down to something almost annoyingly good. Discrete, fully complementary, current-feedback topology — not an op-amp in sight. That's not marketing language. That's a design philosophy that shows up in how the thing actually sounds.
And it sounds fast. Not bright, not harsh — fast. Transients arrive on time. There's a low-noise floor that lets you hear into recordings without digging. This is not an amp that flatters bad sources or smooths over problems; it passes signal with the kind of directness that will immediately tell you whether your headphones and your recordings are worth your time.
The $99 Problem
The price is the thing everyone gets hung up on, and I understand why. You've been conditioned to believe that hundred-dollar amplification is a compromise waiting to happen. The Magni 3+ disagrees, loudly, through your AKG K701s or your Sennheiser HD 6XX or whatever you've been underdriving all this time.
The gain switch on the back is more useful than it sounds. Low gain for efficient IEMs and easier-to-drive cans, high gain for the hungry stuff — your 300-ohm Beyerdynamics, your planar magnetics. That toggle means this thing scales surprisingly far up the headphone ladder before it becomes the bottleneck.
The preamp outputs are not an afterthought. Run a pair of powered monitors off the back and you've built a legitimate desktop system around a single box. Pair it with something like the Marantz CD-63 — a player with real analog outputs that deserves better than a laptop's headphone jack — and you'll hear exactly what that transport was built to deliver. Clean, unfussy, present.
One honest caveat: the chassis runs warm. Not hot, not alarming, but warm — and if you stack it under a DAC, mind your ventilation. Also, the Magni Heresy, which followed shortly after, uses an op-amp-based design that measures even better on paper. Some people prefer it. I'm not one of them. The 3+ has a texture the Heresy irons out, and I'll take that texture every time.
The Magni 3+ is the kind of thing you buy, set up in an afternoon, forget to think about, and then realize six months later you haven't touched your other gear because you keep coming back to this. That's the highest compliment I know how to give.