Most models can be connected to amplifiers and speakers, giving you "cinema-like" surround sound.
The deflection plates of a c.r.t. are connected to amplifiers, which can be of relatively simple design when the required output amplitude is low; it is therefore desirable for the tube sensitivity to be as high as possible.
The Blaster had steel wires connected to amplifiers fitted to the main piece of aluminum; the device was played with an artillery shell.
The contractions were measured with isometric transducers, connected to amplifiers, and recorded with measurement software IOX Version 1.7 (EMKA Technologies, Paris, France).
Direct current (DC) extracellular field potentials and evoked potentials (EPs) were recorded with glass microelectrodes (150 mM NaCl; 2 10 MΩ) connected to the amplifier (Homemade extracellular amplifier, Münster, Germany) by an Ag/AgCl KCl bridge.
Conscious animals were placed in a 4 L plethysmograph which was equipped with an internal microphone and a pressure transducer, and were connected to a Amplifier Interface Unit series pre-amplifier (EMMS, Hants, UK).
An acoustic mannequin (Bruel & Kjaer Head and Torso Simulator, type 4100-D) was mounted on a tripod placed inside a sound-proofed audiometric booth and connected to an amplifier (Bruel & Kjaer Sound Quality Conditioning Amplifier, type 2672).
