This Schiit Magni Unity review is for one specific buyer: someone who already owns a DAC and doesn’t want to pay for another one. Most headphone amplifiers at this price are DAC/amp combos — they bundle a digital converter with the amplifier stage and sell you both in one box. That’s the right approach for most buyers. But if you already own an external DAC, a CD player with analogue outputs, or a receiver with a headphone preout, the best pure amplification $150 can buy is what you need. The Schiit Magni Unity was built exactly for that scenario.
Schiit Audio has been designing and building amplifiers in Bozeman, Montana since 2010. The Magni Unity is their current entry-level headphone amplifier — fully discrete, no op-amps in the signal path, with a variable preamp output that lets it drive powered speakers from the same volume knob as your headphones. It’s listed in our roundup of the best headphone amplifiers under $200 as the top choice for DAC owners. This Schiit Magni Unity review explains exactly why — and where it falls short.
Quick Answer: The Schiit Magni Unity is the best pure headphone amplifier under $150 for listeners who already own a DAC. Its fully discrete circuit delivers transparent, natural-sounding amplification across the full impedance range. The variable preamp output makes it the only amp at this price that simultaneously drives both headphones and powered speakers from a single volume control. It does not include a DAC — if your source is a computer or phone, you need a DAC/amp combo instead.