Term
T/F A transducer converts one type of energy into another |
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Definition
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Term
| What does an output transducer do? |
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Definition
| Converts electrical energy in to acoustical energy. |
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Term
| What are the five major types of transducers? |
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Definition
Piezo Electric Electro Magnetic Electro Mechanical Electro Static Ribbon/Planar |
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Term
| What is the most common output transducer? |
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Definition
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Term
| On a cone type driver, is the Magnet Assembly considered replaceable? |
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Definition
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Term
| This part connects the speaker cone to the outside of the basket: |
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Definition
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Term
| Which two parts of the speaker assembly are responsible for movement of the speaker itself? |
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Definition
| The magnet and voice coil |
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Term
| Besides the cone driver, what is the other type of electro magnetic speaker? |
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Definition
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Term
| What is the replaceable part of a compression driver? |
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Definition
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Term
T/F A horn is also known as a Wave Guide |
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Definition
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Term
| If the horn dispersion pattern reads "90x60," what does it indicate? |
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Definition
| 90 degrees horizontal by 60 degrees vertical |
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Term
Which dispersion pattern will "throw" sound the futhest? 90x90 40x20 30x10 or 70x55 |
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Definition
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Term
| Describe "Over Excursion" |
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Definition
| Moving the assembly too far forward and backward |
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Term
T/F Over Excursion can or will physically damage the speaker assembly |
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Definition
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Term
T/F Underpowering a loudspeaker can cause damage. |
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Definition
True If your amp isn't big enough to power the speaker without turning the gain all the way up, you will send square waves to the speaker. |
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Term
T/F Square waves do not damage loudspeakers |
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Definition
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Term
| Which power rating is most relevant when purchasing speakers? |
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Definition
Program (Peak is used for "hype") |
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Term
T/F The process of repairing a speaker is called re-coning |
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Definition
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Term
| Typically for a PA loudspeaker, can just anyone purchase the parts or perform a re-coning? |
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Definition
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Term
| For consumer speakers, can a user purchase a repair kit? |
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Definition
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Term
| What are the three ways of wiring together multiple sets of loud speakers? |
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Definition
Series Parallel Series/Parallell |
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Term
| Of the three different speaker wiring configurations, which one will lower the overall ohm rating? |
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Definition
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Term
| If two 8-ohm speakers are wired to create a 4-ohm load, which wiring confiuration was used? |
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Definition
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Term
| Which speaker wiring method will increase the overall ohm rating? |
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Definition
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Term
| If two 8-ohm speakers are wired to create a 16-ohm load, which wiring method was used? |
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Definition
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Term
| What type of wiring is a combination of two existing methods? |
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Definition
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Term
| Four 16-ohm speakers wired together in Series-Parallel will yield what overall ohm rating? |
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Definition
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Term
T/F An amplifier is designed to increase the power of something |
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Definition
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Term
| Power is defined as the amount of measured energy over time. What is this unit of measurement referred to in the electrical realm? |
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Definition
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Term
T/F Distortion can be defined as the output being exactly the same as the input |
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Definition
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Term
| The fisrt amplifiers were used for |
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Definition
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Term
| What class of amplifier is said to be the most accurate or best sounding? |
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Definition
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Term
| What class of amplifier is said to be the most efficiant, producing the least amount of heat? |
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Definition
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Term
T/F Class "D" infers digital |
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Definition
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Term
| What sets apart Class "D" and Class "I" amps from the rest? |
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Definition
| They are "switching" amplifiers |
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Term
| What two classes of amps use multiple power supplies? |
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Definition
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Term
| Most ful-range amps are usually what type? |
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Definition
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Term
| A subwoofer amp (especially in car audio) is usually of what class? |
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Definition
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Term
| Which indicator light lets the user know that the amp is on? |
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Definition
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Term
T/F The signal indicator on most amps indicates input |
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Definition
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Term
T/F Lights with levels displayed next to them (-10, -6, etc) indicate input level |
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Definition
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Term
| A clip light steadly lit for any legnth of time could |
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Definition
| Damage both the speaker and amplifier |
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Term
| If the protect light has come on, |
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Definition
| The amplifier has shut down |
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Term
| What would cause an amplifier to go into protect mode? |
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Definition
Overheating, being overdriven, electrical short. All of the above! |
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Term
| What type of outputs are typically used on professional amplfiers? |
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Definition
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Term
T/F Speakon connectors are also available on some amplifiers |
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Definition
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Term
| If an amp is running two in and two out, what mode is it said to be in? |
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Definition
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Term
| An amp with one in, two out is said to be in what mode? |
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Definition
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Term
| When a two channel amp has been converted to a one channel amp (one in/one out), what mode is it in? |
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Definition
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Term
| When "Bridging" an amplifier, what two outputs must be used? |
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Definition
| The positive of channel one and two |
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Term
| The ohm rating of which an amplifier operates is determined by what? |
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Definition
| The nominal impedance of the speakers |
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Term
| If the speaker load is cut in half, will the power output of the amp double? |
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Definition
Maybe It depends on the amplifer |
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Term
T/F If an amplifier doe not have a two ohm rating, it is okay to run it at two ohms |
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Definition
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Term
T/F If an amplifier des not have a 16 ohm rating, it is okay to run it at 16 ohms |
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Definition
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Term
| Which amplifier power rating is most accurate? |
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Definition
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Term
| For amplifiers that are being used in limited-bandwidth (frequency range) applications, what spec is acceptable for use? |
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Definition
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Term
T/F Speakers will be matched to amplifiers |
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Definition
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Term
T/F It is harmful to operate one channel of a professional amp at 8 ohms and the other at 4 ohms |
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Definition
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Term
| Most PA speakers should be given |
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Definition
| Somewhere between their program and peak power ratings |
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Term
| What component can handel up to 200% overpowering? |
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Definition
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Term
T/F The speaker wiring of a group of speakers will affect the power requirements for that group |
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Definition
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Term
T/F The speaker wiring of a group of speakers will affect the power output of an amplifier |
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Definition
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Term
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Definition
| A frequency dividing netork |
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Term
| The sections or outputs of a crossover can be referred to as |
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Definition
Ways Bands Ranges Any of the above |
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Term
| A three way system has how many frequency ranges? |
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Definition
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Term
| A three way system has how many splits in the signal? |
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Definition
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Term
| A typical home theater speaker is |
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Definition
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Term
| A typical house PA speaker is |
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Definition
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Term
| Live sound monitor wedges are typically |
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Definition
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Term
| Passive crossovers are positioned before or after amplification? |
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Definition
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Term
| Active crossovers are positioned before or after amplification? |
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Definition
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Term
| A bi-amped or tri-amped speaker or system employs |
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Definition
| Multilpe amplifiers or channels |
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Term
| A bi-amped speaker or system means it is a |
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Definition
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Term
| A tri-amped speaker or system means it is a |
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Definition
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Term
| A bi-amped, three-way system indicates |
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Definition
One amp channel powers one component, and the other channel powers two |
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Term
| What is the unaffected section of a filter called? |
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Definition
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Term
| What is the section of a filter that is fully attenuated called? |
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Definition
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Term
| What is the place where two opposing filters meet? |
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Definition
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Term
| Attenuation begins at what part of the filter? |
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Definition
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Term
| In a filter, the referance frequency measurement is called? |
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Definition
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Term
| If one is to set the consoles high pass filter at 100Hz, that 100Hz is measured at the...? |
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Definition
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Term
T/F The filter slope is measured in dB per octave |
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Definition
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Term
| Each order of slope is equivalent to |
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Definition
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Term
| What is the rolloff rate of a third order slope? |
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Definition
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Term
| What is the rolloff rate of a fourth order slope? |
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Definition
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Term
| The shape of a filter is significant to what particular section? |
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Definition
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Term
| What filter has a very long transfer area, and variable knee frequency reference level? |
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Definition
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Term
| What filter has an extremely short transfer area, and a consistant knee frequency of -3dB? |
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Definition
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Term
| Which two filters have a knee frequency referenced at -6dB? |
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Definition
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Term
| The electronic alignment of two or more loudspeaker components is known as: |
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Definition
Time Alignment Time Correction Phase Coherency Any of the above |
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Term
T/F Misaligned speaker components will cause part of the sound from a loudspeaker to beam or "tilt" up or down |
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Definition
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Term
| A two-way, stereo analog crosover will have a total of how many output levels? |
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Definition
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Term
T/F An analog crosover's controls adjust each high and low-pass filter individually |
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Definition
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Term
| A three-way, mono crossover will have how many frequency selector controls? |
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Definition
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Term
| A typical two-way, stereo crossover can be configured to operate as: |
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Definition
Three-way mono Sounds serious... |
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Term
T/F Digital crossovers cannot store and recall settings |
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Definition
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Term
T/F Digital crossovers can be managed via PCs |
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Definition
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Term
| In a digital crossover menu, the user can adjust: |
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Definition
Each Filter Slope Shape All of the above |
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Term
| Band-limiting can be defined as |
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Definition
| Frequency-dependent limiting |
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Term
| ALL digital crossovers ALWAYS contain: |
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Definition
| Time Correction and Parametric band EQs |
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Term
| The best way to prevent unwanted tampering with a digital crossover is: |
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Definition
| Employing the lockout functons |
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Term
| A digital crossovers configuration limitations depend on |
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Definition
| The number of input and output connections |
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Term
| How many outputs does a stereo three-way system require? |
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Definition
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Term
| If a digital crossover has four inputs, and eight outputs, which wiring configuration can it NOT achieve |
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Definition
| Stereo three-way system and a mono three-way system |
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Term
T/F A system limiter can be used as a system compressor in some applications |
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Definition
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Term
| A ratio of 8:1 or higher is considered what? |
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Definition
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Term
T/F Even with the most advanced system management units, a system EQ is not necessary |
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Definition
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Term
| What type of filter will have its bandwidth change when its amplitude changes? |
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Definition
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Term
| What type of filter will have its bandwidth remain the same when its amplitude changes? |
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Definition
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Term
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Definition
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Term
| An RTA is used to measure what? |
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Definition
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