In a search for the best Headphone Amplifier solution, we found a recently developed CANAAN amplifier IC using a technology called "new class A", having the advantage of ultralow distortion figures, yet at the same time beeing as efficient as class D amplifiers. For headphone use (16ohms) no heatsink required.
Inside are stereo Class-A Mosfet power stages. Just a few extra components are required for feedback, amplification factor and current sensing.
We made five different versions op amplifiers with this interesting IC.
The middle version we especially designed for high-quality headphone use.
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