The groove's secret code
The microscopic explorer
The great frequency trick
Making the air dance
gus Multi-Driver Speaker Systems
Woofer takes the low (takes the low!) Midrange in the middle (in the middle!) Tweeter takes the high (so high!)
gus Weak line-level signals from a phono preamp gain voltage and current inside a power amplifier before driving mechanical speaker parts.
gus Speakers use interacting magnetic fields to convert electrical signals into physical sound waves.
gus Guide the needle along the groove to discover how physical vibrations become sound waves.
Loudspeaker debut: In 1919, the Magnavox loudspeaker system was used publicly for the first time to amplify a speech by U.S. President Woodrow Wilson to 50,000 people.
What type of electrical signal travels through the wires connecting an amplifier to a passive loudspeaker?
What is the name of the copper wire coil that sits inside a speaker's permanent magnetic field?
Who invented the first practical electrodynamic moving-coil loudspeaker, which they named 'Magnavox' in 1915?
What physical medium must sound waves travel through for us to hear music from a loudspeaker?
What part of the human body acts as the reverse of a speaker cone, vibrating when struck by air waves?
What is the name of the electronic circuit inside a speaker cabinet that splits the audio signal into different frequency ranges?