ARSP 1130 TRANSDUCERS FINAL UPDATED ACTUAL
QUESTIONS AND ANSWERS
Loudspeakers convert________ to ________ - CORRECT ANSWER✅✅✅Electrical energy to Acoustic
Energy
How does a moving coil loudspeaker work? - CORRECT ANSWER✅✅✅Signal fed into voicecoil moves
a magnet the coil is wrapped around. The magnet then causes the cone to move and create sound
pressure waves.
What effect does size have on speakers? - CORRECT ANSWER✅✅✅The bigger speakers, the lower
the frequencies and vice versa.
Why use 2 and 3 way loudspeaker systems? - CORRECT ANSWER✅✅✅To better produce all
frequencies.
What is a Crossover Network? - CORRECT ANSWER✅✅✅A device that divides frequency bands and
sends them to their respective drivers.
Why are active crossovers superior to passive types. - CORRECT ANSWER✅✅✅Active crossovers
have their own amplifier for each network and also has less distortion.
Far Field Pros - CORRECT ANSWER✅✅✅-Most linear; Accurate for low frequency fundamentals
-High SPL capabilities
Far Field Cons - CORRECT ANSWER✅✅✅-Expensive!
-Greatly affected by room acoustics
-Low transferability; May not be accurate for certain mediums.
Near Field Pros - CORRECT ANSWER✅✅✅-Nearest to consumer speaker in frequency response and
linearity
, -Discounts room acoustics as you are close to the speakers.
Near Field Cons - CORRECT ANSWER✅✅✅-Compromised below 70Hz
Headphones Pros - CORRECT ANSWER✅✅✅-Easy to hear subtle changes such as effects and
panning.
-Sound quality is consistent from studio to studio.
Headphones Cons - CORRECT ANSWER✅✅✅-Tendency to use more effects (see Beats by Dre).
-Sound quality will be different because there is no room interaction (possibly TOO linear!).
Relate cone motion to speaker phase in a 2 way speaker system. - CORRECT ANSWER✅✅✅When
speakers move at the same time and in the same way, the speakers are in phase.
How can we test for speaker phase? - CORRECT ANSWER✅✅✅Pan them to center and listen for
sound placement.
What frequencies are most affected by out of phase speakers? - CORRECT ANSWER✅✅✅Low range
frequencies.
What is amplifier damping factor? - CORRECT ANSWER✅✅✅How well the amplifier can control the
motion of the speaker cone.
Give 2 reasons why we increase the thickness of speaker cables as we increase cable length. - CORRECT
ANSWER✅✅✅It gives the amp better damping factor and the wire less resistance.
What are average home listening SPLs? - CORRECT ANSWER✅✅✅75-85 dB
What are two considerations when evaluating speaker response? - CORRECT ANSWER✅✅✅-
Linearity of the speakers.
-Acoustics of the room.
QUESTIONS AND ANSWERS
Loudspeakers convert________ to ________ - CORRECT ANSWER✅✅✅Electrical energy to Acoustic
Energy
How does a moving coil loudspeaker work? - CORRECT ANSWER✅✅✅Signal fed into voicecoil moves
a magnet the coil is wrapped around. The magnet then causes the cone to move and create sound
pressure waves.
What effect does size have on speakers? - CORRECT ANSWER✅✅✅The bigger speakers, the lower
the frequencies and vice versa.
Why use 2 and 3 way loudspeaker systems? - CORRECT ANSWER✅✅✅To better produce all
frequencies.
What is a Crossover Network? - CORRECT ANSWER✅✅✅A device that divides frequency bands and
sends them to their respective drivers.
Why are active crossovers superior to passive types. - CORRECT ANSWER✅✅✅Active crossovers
have their own amplifier for each network and also has less distortion.
Far Field Pros - CORRECT ANSWER✅✅✅-Most linear; Accurate for low frequency fundamentals
-High SPL capabilities
Far Field Cons - CORRECT ANSWER✅✅✅-Expensive!
-Greatly affected by room acoustics
-Low transferability; May not be accurate for certain mediums.
Near Field Pros - CORRECT ANSWER✅✅✅-Nearest to consumer speaker in frequency response and
linearity
, -Discounts room acoustics as you are close to the speakers.
Near Field Cons - CORRECT ANSWER✅✅✅-Compromised below 70Hz
Headphones Pros - CORRECT ANSWER✅✅✅-Easy to hear subtle changes such as effects and
panning.
-Sound quality is consistent from studio to studio.
Headphones Cons - CORRECT ANSWER✅✅✅-Tendency to use more effects (see Beats by Dre).
-Sound quality will be different because there is no room interaction (possibly TOO linear!).
Relate cone motion to speaker phase in a 2 way speaker system. - CORRECT ANSWER✅✅✅When
speakers move at the same time and in the same way, the speakers are in phase.
How can we test for speaker phase? - CORRECT ANSWER✅✅✅Pan them to center and listen for
sound placement.
What frequencies are most affected by out of phase speakers? - CORRECT ANSWER✅✅✅Low range
frequencies.
What is amplifier damping factor? - CORRECT ANSWER✅✅✅How well the amplifier can control the
motion of the speaker cone.
Give 2 reasons why we increase the thickness of speaker cables as we increase cable length. - CORRECT
ANSWER✅✅✅It gives the amp better damping factor and the wire less resistance.
What are average home listening SPLs? - CORRECT ANSWER✅✅✅75-85 dB
What are two considerations when evaluating speaker response? - CORRECT ANSWER✅✅✅-
Linearity of the speakers.
-Acoustics of the room.
