| Speakers are what kind of transducers? |
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| Speakers are double transducers. |
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| What are the three main types of speakers? |
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Electro Dynamic (Moving Coil)
Ribbon
Electro Static (Works on the theory of variable capacitance and has a hyped frequency response). |
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| What are the two OTHER types of speakers? |
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Piezo Electric (Tweeters)
Plasma (Laser shit that vibrates air) |
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| How many volts does a microphone emit? |
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| Less than one, maybe 1/5th? |
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Ribbon speakers and microphones have what in common?
What is it good for? |
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Corrugated aluminum.
It’s good for high frequencies. |
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| Tweeters are used in conjunction with what? |
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| A speaker is a tweeter and woofer. Mids and highs go to what? Lows go to what? |
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| Mids and Highs go to the tweeter. Lows go to the woofer. |
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| It divides the sound frequency spectrum (20Hz-20kHz) into regions. It’s how the mids and highs are decided to go to the tweeter and the lows to the woofer. |
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| Can one speaker reproduce 20Hz-20kHz? |
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| No one speaker can reproduce 20Hz-20kHz. |
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| A tweeter is too small to reproduce low frequencies and vise versa. |
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| A tweeter but louder, used on P.A. systems. |
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| Ports allow for low frequencies to escape (usually in the front). |
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| 4 volts = __ on a VU meter. |
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| 4 volts = 0, line level, on a VU meter. |
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Sound travels in what direction?
What’s the difference between lows and mids and highs? |
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All directions.
Lows are more omnidirectional between mids and highs. |
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| Powered Speaker Cables go to what kind of speaker? |
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| What is a speaker enclosure? |
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| The box, body that the speaker’s in. |
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| Describe a passive speaker. Describe an active speaker. |
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Passive speakers have no amp within the enclosure, it needs external amp, and powered signals are sent to it.
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Active speakers have an amp in it, a power switch, it plugs into the wall, takes an XLR (balanced signal).
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Tweeter and woofer = ___ ___ speaker?
Tweeter, mid range and woofer = _____ ___ speaker? |
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Tweeter and woofer = Two way speaker.
Tweeter, mid range and woofer = Three way speaker. |
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| Describe what a passive crossover does. Descrive what an active crossover does. |
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A passive crossover takes a powered signal and divides sound frequency spectrum.
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Active crossovers receive an unpowered signal (line) and sends out divided frequencies (still unpowered).
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| Active speakers have what kind of crossover? |
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| Active speakers have passive crossovers. |
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Mic & Line ? _______?
Speaker = _______? |
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Mic & Line ? Powered
Speaker = Powered |
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| Speakers either come in ?, ?, and ? ohms. |
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| Speakers either come in 4, 8, 16 ohms. |
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| An electric guitar gives out how many ohms? |
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| What size woofers are able to emit 20Hz? |
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| The measurement of how quickly a speaker’s cone reacts to an audio signal. |
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| What is transient response? |
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| How quickly a mic’s diaphragm reacts to a sound wave. |
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| The longer the cable, the _____ the damping (factor). |
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| The longer the cable, the worse the damping (factor). High damping reacts quicker. Low damping is bad. |
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| Do active speakers have higher or lower damping compared to a passive speaker? |
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| Active Speakers have higher damping because the cable is right next to the amp. |
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| Sub woofers are a separate speaker enclosure. |
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