I've reviewed and auditioned a lot of headphone amplifiers ... transistor/vacuum tube audio section. While the Isabellina can be run off an AC power outlet, it sounds best powered by high-current ...

The best buy in our round-up, the Head Box DS2 B drives both conventional and balanced headphones ... many sets these amps won't drive. Unison Research SH One for hardcore tube purists, but ...

So where did the MZ3 and brand new Linear Tube Audio Velo Headphone Amplifier/Pre-amplifier come from ... in the world and there is no way they didn’t cherry pick the best features of the existing ...

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All of my listening up to this point was with the Beyerdynamic Tesla T1 headphone ($1,295), which is one of the very best headphones ... get a tube amplifier. But then you have to also consider ...

We've scoured the whole show floor – and its many, many side rooms – for the most interesting new releases that are the type of products TechRadar usually covers, to see which are worthy of one of our ...

DAC/Amp that offers the best both home and away thanks to its power-packing 5180mW maximum output and balanced dual-mono circuitry, two facts that the little devil the most powerful headphone amp ...

When it comes to listening on the best headphones, many hi-fi fans swear ... If you're familiar with tube amps you'll want to ...