Pi 2 Design the developer behind the 503HTA, Hybrid Tube AMP/DAC is a small Hat size Raspberry Pi add-on has upgraded the design to add new features. It has added an analogue line in the 503HTA can be ...

The Apos Gremlin & Merlin stack is now the star of my desktop.

There’s a mystique in audiophile circles about tube amplifiers. They can have a very nice sound which is attributed to their even-harmonic distortion, but they are often portrayed as requiring rare ...

IN THE AGE OFwireless speakers and Bluetooth streaming, vacuum-tube amplifiers may seem antiquated, but you don’t have to be an audio nerd to appreciate their appeal. Designed to power traditional ...

Vacuum tube amplifiers just won’t go away. I am speaking more of audio vacuum tube amps than I am of microwave amps like magnetrons, klystrons, TWTs and the like. Most other audio gear is solid state ...

Ex-movie theater projectionist Steve Guttenberg has also worked as a high-end audio salesman, and as a record producer. Steve reviewed audio products for CNET and worked as a freelance writer for ...

Fig 1. This basic source-follower circuit is the kind of amplifier you would find in an electric bass guitar amplifier. R6 provides the feedback. On the other hand, low-distortion applications require ...

GaN Systems is claiming up to 96% power efficiency from a 200 + 200W (8Ω) Class-D stereo amplifier built around its gallium nitride power transistors. THD+N is under 0.03%, with further optimisation ...