electrodynamic loudspeaker การใช้

• This makes for rather different acoustic behavior in rooms compared to conventional electrodynamic loudspeakers.
• While now uncommon, electrodynamic loudspeakers were once common in top quality mantel radios and similar domestic valve anodes.
• The first electrodynamic loudspeakers were produced in the 1930s, to address the problem that strong permanent magnets of the time were extremely heavy.
• Very few manufacturers still produce electrodynamic loudspeakers with electrically powered field coils, as was common in the earliest designs; one of the last is a French firm.
• The Capehart radio / phonographs of the era with large diameter electrodynamic loudspeakers, though not ideal, demonstrated this quite well with " home recordings " readily available in the music stores for the public to buy.
• An "'electrodynamic loudspeaker "'or "'field coil loudspeaker "'is a dynamic loudspeaker in which the field is produced by an electromagnet rather than by a permanent magnet.