aurix by metrum acoustics review by 6moons

But beyond step-up transformers in phono stages, we rarely see hifi circuits exploit magnetic gain. Usual gain devices are transistors, tubes or op-amps. But exceptions exist. The FirstWatt M2 and F6 power amps use small transformers for passive gain. Audio Consulting has its own version. In-depth canvassing of the worldwide web should scare up more yet the list will be short. Ask transformer detractors why so few. They’ll likely point at limited bandwidth, phase shift, slow rise times and hysteresis effects whenever transformers are involved. MORE

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