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24 Cards in this Set
- Front
- Back
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What does "loop Unity Gain" refer to?
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Point where feedback occurs
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Name 3 things that factor into the potential for feedback?
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Mic Response
Frequency response speaker response |
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What does the term "equivalent Acoustic Distance" refer to?
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Distance needed to estimate needed Acoustic Gain/ distance of the closest listener
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What is Feedback?
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It locks onto a frequency for which the loop path is in phase.
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What is Potential Acoustic Gain
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The amount of acoustic gain a system can achieve before feedback
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WHen is a sound system considered to be sufficient in providing adequete SPL without feeding back?
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When PAG is greater or equal to NAG
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Why is it dangerous to use an AC ground lift adapter?
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These devices disconnect the chassis, With no connection to the ground a fault current would flow through the first person to touch the device
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What is the pin 1 problem?
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The XLR input and output pin1 are tied to ciruit ground
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what is the solution to the Pin 1 problem?
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Tie XLR input and output directly to the chassis ground
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What is the Maximun recommended length of an unbalanced cable run?
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10 feet or shorter
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What are the 4 primary factors determining power loss in speaker cable runs
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Length
Load Gauge |
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Name some commonly used speaker cable connectors used by proffesinal sound companies
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NL 4 or 8
EP/AP 4,6,8 Power |
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What is reactance
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Frequency dependent resistance
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How does reactance affect a speaker cable
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frequency response
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What does the 5% rule state?
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Cable resistance should never exceed 5% of load resistance
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What is Damping factor
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A numerical indication of how well an amplifier can control a loudspeaker's cone motion
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What is the min responsibility of a booking agent
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gets the artist price from reliable promotions and book the band into the appropriate venues
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What does a contract rider contain
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Performance requirements specified by the band and management
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what does a tour itinerary contrain
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show dates and cities
Venue sizes Routing Contacts personel listing |
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Name some job duties of a tour manager
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Person in charge of tour
Overseas travel planning and lodging Take care of band and entorage Pays and accounts for all expenses Settles the show with promoter overse merch Enforce contract |
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Name some job duties of production manager
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In charge of tour personel
sound, lights, set, stage, bandline Equipment transportation Set up production office dressing rooms enforce rider pre show check |
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Name 3 important things a production manager considers when taking bids from equipment vendors
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labor equipments/rigging points
price experience |
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What are some things production manager will advance for a tour
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Tech rider
Seating stage position Mix posistion Barricade security venue policies |
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What factors determine crew salaries for a tour
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experience
network budget |
