Huge specification. Tiny footprint. That's the pitch for the new Rotel DX-3, a compact headphone amplifier and standalone DAC ...

And it sounds, well, like my hi-fi system. No special “warm ... about its being described as a headphone amplifier by the vendor. A single-ended tube amplifier has a very high impedance output ...

The entire system runs on 8 AA batteries and should ... to directly drive a 4-8 ohm loudspeaker load. Almost all tube amplifiers require a transformer to match the high impedance of the tubes ...

One big change is the addition of two JAN6418 vacuum tubes, with the M8T featuring both a tube amp and a transistor ... use its own in-house operating system, MTouch, the M8T runs on Android ...

The compact build lets you pick from a raft of licensed preamp modules designed in collaboration with a host of boutique amp brands ...

It also has Astell&Kern's Triple Amp System with dual Triode KORG Nutube tubes to fine-tune the sound to suit your personal preferences. And, it has 3.5mm, 6.35mm unbalanced, and 2.5mm 4.4mm ...

Karma-AV is to distribute Unison Research’s high-performance valve-based Hi-Fi separates in the UK and Ireland. The Italian manufacturer’s line-up includes Class A pre/power and phono amplification ...