11. The first Altec Lansing power amplifier , Model 142B, was produced that same year. 12. Major stories include the third part of a series on mobile power amplifiers . 13. For bass instruments, higher-power amplifiers are needed to reproduce low-frequency sounds. 14. The transmitters used Klystron power amplifiers and the receivers were cryogenically cooled maser devices. 15. On their power amplifiers , Naim use recessed loudspeaker sockets that accept only banana plugs. 16. This is important because power amplifiers become increasingly impractical with increasing amplifier power output. 17. It was here that the company s first professional audio power amplifier was created. 18. Instrument amplifiers including guitar amplifiers and electric keyboard amplifiers also use audio power amplifiers . 19. Available accessories include remote controls, transmit power amplifiers , SATCOM preamplifiers, and ground support equipment. 20. They block the power amplifier from taking maximum control over the voice coil motion.
