Normally when we hear of a Champ guitar amp, we think of a sweet-sounding rig that puts out 6 Watts through an 8-inch speaker. [John Chambers] of Champ Electronics wanted to build a true champion for ...

Since this amp has +-85V rails the production units will have 100V 105 deg C rated capacitors. According to Emotiva, the XPA-2 will deliver 250wpc into 8 ohms / 500wpc into 4 ohms with both channels ...

This paper describes the design, development, and performance of a low cost, high-efficiency, 1000 Watt RF power amplifier (PA) for 27.12 MHz, operated from a 300VDC supply. The PA is built around a ...

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 ...