Microphone Systems

|Audio Systems Index| Microphones | Outlets and Jacks |

Outlets and Jacks

 

Audio power outlets

Additional audio equipment for performance purposes should be plugged into the audio quad box located near the console platform on the east gallery wall (it is on the same electrical phase as the other audio equipment and so will not produce hums).

 

Microphone jacks

On the nearest edge of the console platform is a six-jack receptacle for microphones and Direct-Input boxes, which allows performers and their instruments to be heard through the sound system, or to record to the 16-tracks of digital tape offered by the two ADAT decks (the Fostex RD-8s).

Top left jack: Mic input #1	Top middle jack: Mic input #3	Top right jack: DI input A
Bottom left jack: Mic input #2	Bottom middle jack: Mic input #4	Bottom right jack: DI input B

 
• The mic jacks send mic-level signals to the mic inputs on the patch bay.

   

• The Direct Input (DI) jacks send mic-level signals to the DI inputs on the patch bay. DI boxes convert line-level signals to mic-level signals, which helps avoid buzzing and other interference that can otherwise occur with long lengths of wiring.

   

• Instruments should be plugged into the four outlets of the quad box near the mic jacks. This quad box is wired to a circuit on the same electrical phase as the audio equipment, with its separate copper grounding rod, to ensure that no buzzes and hums will interfere with the clean audio sound.

Microphones

Select mics for given purposes as indicated in the table below.

USE	MICROPHONE TYPE	PREFERRED MICS	PATCH BAY	JACK
Narration	Condenser Omnidirectional	Beyer Wireless Lav S250	101 201	None
Narration	Dynamic Omnidirectional	ATM 41 (handheld)	101 201	None
Choral or Vocal Performance	Dynamic Unidirectional	ATM 41 (handheld or on stand)	102-104 202-4	2-4
Choral or Vocal Performance	Dynamic Hypercardioid	Beyer M88*	102-104 202-4	2-4
Instrumental (e.g., guitar, harp, cello, dulcimer...)	Condenser Cardioid	AT-Pro-37R (does not have pop filters)	102-4 202-4	2-4
Electronic instruments	x	EDB Conquest DI boxes	x	5-6**

 
• *The Beyer M88 is great for any of the above applications. It is our finest quality mic, so we will usually reserve it for high-quality music and voice recording applications.

   

• **The two DI channels are actually non-normalled mic inputs. A simple patch to mic inputs 9-10 allows them to be used with any of our mics. Similarly, the DI boxes work with any mic input, including #2, #3, and #4. Thus we may use any combination of up to 6 mics or 5 DI's and the Beyer wireless.

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