We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Brent Butterworth Brent Butterworth is a writer dedicated to audio gear. He ...

Krell just announced their flagship Illusion and lower-cost Illusion II stereo preamplifiers. The $15,000 Illusion preamp separates the power supply from the audio circuitry, while the $7,000 Illusion ...

McIntosh Laboratory announced two Stereo Control Centers, Models C48 ($4,500) and C50 ($6,500). Both components feature a powerful suite of new options and take legendary McIntosh preamplifier ...

The circuit consists of preamplifier, tone controls, and regulated DC power supply, while providing a power output of 18 Watts for 8 Ohm load and 30 Watts for 4 Ohms load. BC550 – an NPN general ...