The X-Altra MC/MM RIAA Phono EQ article Part 1 and Part 2 have been published in the February and March issues of audioXpress magazine. Here is a link to the February issue overview and towards the bottom, a quick intro…
Are you are looking for an experienced solid state audio designer? I am UK based but can undertake design projects on a contract basis for customers anywhere in the world. I specialize in power amplifiers, full feature pre-amplifiers (including low…
The Hifisonix kx-Amplifier is a 28 Watt class A DIY Current Feedback (CFA) power amplifier featuring low distortion, wide bandwidth and fast rise/fall times. It can be operated either in pure class A mode, or in class AAB mode with…
Here’s a 9 minute YouTube video I made on soldering SMD components. I use lead 0.5 mm solder with a melting temperature of c. 180 C and my soldering iron temperature is set to 280 C.
There is a misconception that noise pickup is reduced by placing the input RCA connectors (and similarly XLR input connectors in a fully balanced system) on opposite sides of the amplifier rear panel and then running short wires to the…
The HPA-1 is a compact high performance class A headphone amplifier that will deliver up to 1.75W into a 32 Ohm pair of headphones. The amplifier features ultra-low distortion, very wide bandwidth and class A operation up to 13 V…
