This design is derived from the Portable Headphone Amplifier featuring an NPN/PNP compound pair emitter follower output stage. An improved output driving capability is gained by making this a ...

Q I have high-end Ohm Walsh stereo speakers that were about $4,000/pair several years ago. I have a large room and have been driving them with a 120-watt HK 3490 Harman/Kardon receiver that was well ...

In March 1985, I was reading a copy of my favorite hi-fi magazine. It carried a story about a brand-new British amplifier from Musical Fidelity. The reviews for the A1 amplifier were glowing, as was ...

Discover the new Madison Power Amplifier from Wattson Audio — a Swiss-engineered Class A/B amp delivering rich harmonics, ultra-low distortion, and dynamic performance in a sleek, compact design.

Vincent Audio has introduced the new SP-331MK hybrid vacuum tube and solid-state power amplifier that is a performance enhanced version of the company’s popular SP-331 power amplifier. While the ...

There are two salient facts about Class A amplifiers: they are inefficient; they give the best possible distortion performance. The quiescent dissipation of the classic Class A amplifier is equal to ...

If you didn’t know better, you might think the phrase “class A amplifier” was a marketing term to help sell amplifiers. But it is, of course, actually a technical description of an amplifier that ...

I am looking at building a ~80W class A amp for experiance and to save costs. I am looking at the AE Aegis One's (nice kit for about $500 here) to couple it with for now but eventually will go up to ...

Q I have high-end Ohm Walsh stereo speakers that were about $4,000/pair several years ago. I have a large room and have been driving them with a 120-watt HK3490 Harman/Kardon receiver that was well ...