Have iFi raised the performance ceiling for portable Bluetooth DAC/Amps with the iDSD Valkyrie, or does the hefty "dongle" ...

(It’s also known for naming its products after Norse mythology.) The company’s newest headphone amplifier, the Valhalla 3, isn’t just a new-and-improved version of the Valhalla 2, which had been the ...

the DAC/headphone amp provides audiophile quality digital-music-to-analog conversion. The DAC/headphone amp uses its own DAC, bypassing the DAC in the computer or mobile device. It converts the ...

The Wiim Amp Pro will include Wiim’s new Voice Remote 2, which debuted earlier in 2025. The Apple Sir remote clone, with its all aluminum construtcion is the perfect complement to the Amp Ultra and ...

To allow the comparison of different op-amps in a headphone amplifier, [Stephan Martin] has created a stereo amplifier board complete with sockets to take single or dual op-amp chips. The circuit ...

And they have their own dedicated headphone amp inside, rather than the amp integrated ... and which one to pick comes down to how much you focus on music or movies We've been testing these ...

The HT voltage is a relatively low 24 V, but it still manages to drive headphones acceptably. Speaker levels require a pre-amp, but even then it’s likely that this circuit is pushing the tube ...