Speaker Anatomy
This is the portion of the speaker that actually moves the air.
What is the diaphragm?
This small hole is drilled slightly smaller than the diameter of the screw threads to prevent cracking
What is a Pilot Hole?
This is the device that you would use to determine if a battery is good.
What is a Voltmeter or DMM?
Who were the engineers that developed the equations for calculating the optimum size of a speaker box?
Who were Thiele and Small?
A standard US electrical outlet has a wide slot and a narrow slot. The hot side of the outlet is in this slot.
What is Narrow?
This is the corrugated material at the bottom of the diaphragm that keeps the voice coil centered on the magnet.
What is the Spider?
An acoustically dead material made up of sawdust and a glue like binder.
What is MDF?
This is the device you would use to measure the SPL at a specific location
What is a Decibel Meter?
Vb describes this parameter of a speaker box.
What is the Volume?
If you touch an improperly grounded piece of electrical equipment, the current may find a path to ground through this?
What is your Body?
This is the portion of the speaker that connects the diaphragm to the outer frame.
What is the Suspension or Surround?
Use this when sanding to ensure you are using a flat surface.
What is a Sanding Block?
This is the device you would use to determine if a wire in a cable was broken or had unusually high resistance.
What is an Ohmmeter or DMM?
This parameter describes the Free-air resonant frequency of a driver.
What is Fs?
The National Institute for Occupational Safety & Health (NIOSH) recommends hearing protection for noise above this dB level.
What is 85 dB?
This is the component of the speaker that generates a permanent force against which the voice coil reacts
What is the Magnet?
This is the support structure inside a speaker box that prevents or limits flexing.
What is Bracing?
This is the device you would use to determine the resonant frequenies of a room.
What is a Real Time Analyzer or Spectrum Analyzer?
This parameter describes the intensity of sound in dB generated by a speaker for 1 Watt of power (units dB 1W/1m)
What is Sensitivity?
This is an indication that an extension cord is carrying more current than it was designed to carry.
What is Heat?
This is the heavy frame which holds the magnet and the outside of the spider.
What is the Basket?
A category of speaker that is enclosed in a sealed container and therefore does not need to be in a sealed box.
What is a Tweeter?
This type of test equipment displays a visual representation of an electrical signal showing signal amplitude as a function of time.
What is an Oscilloscope?
This parameter describes the Q or Quality Factor of the Total Speaker System.
What is Qts?
This is the situation in which you should break off the grounding pin of an electrical plug.
What is NEVER?