A nearby radio broadcast station.
Improperly designed receiving antennas.
Excessive utility voltage.
Improper balance between the left and right channels.
Are exactly halfway between the lowest and highest audible frequencies.
Represent sounds whose volume levels are not too loud or too soft.
Are above the treble range but below the bass range.
None of the above are true.
The use of small speakers can minimize distortion.
Reflection of sound waves from walls should be minimized.
The walls should all intersect at perfect 90° angles.
Wooden furniture, without upholstery, should be used.
A doubling of acoustic power.
A threefold increase in acoustic power.
A tenfold increase in acoustic power.
No change in acoustic power, but a change in frequency.
Forget it! The frequency of a sound wave is independent of the propagation speed.
The positions of antinodes and nodes.
The perceived frequency.
The positions of antinodes and nodes, and the perceived frequency.
Neither the positions of the antinodes and nodes, nor the perceived frequency.
The frequency and phase are identical.
The sound power is inversely proportional to the frequency.
The sound power is directly proportional to the frequency.
All of the sound power is concentrated at a single frequency.
Susceptible to physical damage.
Useful primarily in high-power sound systems.
Preferred for off-the-air sound recording.
Not delivering enough power.
Operating at the wrong frequency.
Operating in a nonlinear fashion.
The speakers are capable of handling the amplifier output.
The amplifier might be damaged by the speakers.
Electromagnetic interference is more likely to occur than would be the case if the speakers were designed for a 10-W amplifier.
The speakers are likely to produce excessive distortion.
They are especially useful for reproducing the sounds of barking dogs.
They are designed to handle short, intense bursts of sound.
They should not be used with graphic equalizers.
They are specifically designed to reproduce low-frequency sounds.
Build a new transmitter that works on the same frequencies with the same power output as your existing transmitter.
Reduce the transmitter output power.
Install shielded speaker wires in the hi-fi system, and be sure the system is well grounded.
Move the amateur radio transmitting antenna to a location farther away from the hi-fi system.
Converts sound waves to radio signals.
Converts sound waves to fluctuating electric current.
Converts AF current to a fluctuating magnetic field.
Converts dc to AF current.
Can save floor space.
Is more susceptible to EMI than a compact system.
Is cheaper than a compact system.
Is designed especially for use with vinyl disks and turntables.
Cannot match impedances among interconnected components.
Cannot increase the audio output of an amplifier.
Eliminates EMI problems in all but the worst cases.
Allows a microphone to be used as a speaker.
A portable CD player
A turntable for use with vinyl disks
An analog audio tape recording/playback system
An RC tone control
Digital media can be used to record and play back audio at higher frequencies than can analog media.
Multigeneration copies of digital audio programs can be made without degradation in fidelity, but this is not true of analog audio programs.
Digital audio is compatible with vinyl disks and old-fashioned reel-to-reel and cassette tape, but analog audio is not.
There are no genuine advantages of digital audio over analog audio. In fact, analog audio is superior to digital audio in every respect.