The circuit was designed to create a line preamplifier by acquiring the use of double triode tubes. The circuit comprises of three parts, the main preamplifier circuit with tubes, the input selector ...

The circuit has been designed for the purpose of creating a portable unit of preamplifier that would function as standalone control for gutitars. TL062 – a low power JFET dual operational amplifier ...

At $50K, the Momentum C4 preamplifier gets a new remote and works seamlessly with optional digital streaming module for another $10K. Did Krell high-end audio components ever look this good? Dan ...

Want engineering excellence? That's the promise of the all-new T+A P 3100 HV ('HV' stands for 'High Voltage'). If its solid aluminium chassis looks familiar, that's because the aesthetic design of the ...

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 ...

Mile End Effects has made a replica Roland Space Echo RE-150 preamp circuit and housed it in a compact enclosure with a switchable JFET boost that lets you dial in some overdrive to the vintage preamp ...