He spoke with a deep, pleasant-sounding voice that was carried by an unseen amplifier system to the farthest comer of the room.

Some amplifier systems use several pre-amplifiers to gradually build up to a high-voltage output signal.

This description can apply to a single stage of an amplifier, or to a complete amplifier system.

These functional descriptions usually apply to complete amplifier systems or sub-systems and rarely to individual stages.

The demonstrators were blasting loud music and yelling into an amplifier system to disrupt the tournament.

Many popular American songs are available, and the amplifier system is such that even an atrocious singer sometimes manages to sound surprisingly professional.

There are also women throughout the video dancing in silver body suits and Busta playing an electric guitar with a sound amplifier system behind him.

The output of the preamplifier then goes to a separate amplifier system similar to that for an electric guitar.

He tented the amphitheater, set up seating, and installed an amplifier system to reach the thousands to be seated outside.

Intermodulation is caused by nonlinearity or parameter limitations in an amplifier system.