Example image of eyePlorer eyePlorer map for 'Preamplifier': Electronic amplifier Signalling (telecommunications) Amplification Line level Microphone Phonograph Pickup (music technology) Transducer Equalization Tone control circuit Attenuation Sound recording and reproduction Switch Amplifier Electric current Voltage Loudspeaker Musical instrument Electret Instrument amplifier Concert Recording studio Channel strip Mixing console Antenna (radio) Masthead Receiver (radio) Satellite Television CMOS Automated Processes, Inc. Classé Cyril Jones Earthworks (company) FM Acoustics of Switzerland Integrated amplifier Mark Levinson Microphone preamplifier Perreaux Sadowsky Sonic holography SWR Sound Corporation Tube preamp Audio amplifier Guitar amplifier Krell Industries Mackie 1604-VLZ Pro McIntosh Laboratory Roland Bolt amplifier Song Audio