41. The audio power amplifier and speaker are quality units that provide solid bass down to 40 Hz. 42. The system commonly uses an analogue power amplifier matched to the low impedance of the transmission loop. 43. This prevents amplified spontaneous emission and is important for a good beam quality and high power amplifiers . 44. This family of designs remains the dominant high power amplifier topology to this day for music application. 45. Another important consideration in design of RF power amplifiers is the memory effect or amplifier nonlinear dynamics. 46. The number of power amplifiers used in a sound reinforcement setting depends on the size of the venue. 47. Power amplifier distortion may damage speakers.48. Electrical servomechanisms require a power amplifier . 49. This is a measure of how well a power amplifier controls the undesired motion of a loudspeaker driver. 50. II 50-watt power amplifier .
