Most analog IC amplifiers are designed to drive high-impedance loads and/or mostly capacitive loads. Only the output stage may be designed to drive an external load resistance. Furthermore, since the ...

but suffers from an output impedance too high to drive a set of headphones. An NE5532 steps in for the op-amp buffer role, making for a very simple circuit. Power comes from a set of four 18650 ...

The stereo amplifier is the beating heart of any hi-fi separates system ... which have amplifiers built into the cabinets, or by opting for a pre/power amplifier pairing where the necessary preamp and ...

This chapter will introduce what will be termed conventional, or reduced conduction angle, high efficiency amplifier modes ... will show that merely reducing the conduction angle of an RF power device ...

The MODEL 10 operates as a fully balanced amplifier from input to output. There are individual power ... inputs and a high-quality phono stage, complete with both MM and three impedance options ...

For anyone with an interest in building audio projects, it’s likely that an early project will be a headphone amplifier ... unit far better able do drive high-impedance headphones than the ...