User manual CAD AUDIO E-350

[. . . ] This system creates a huge current reserve for the microphone's electronics, yet there is no maintenance involved because the microphone automatically keeps the batteries charged during use. The use of OpAmps is not the only unique feature of Equitek microphones. For example, we also employ servo circuitry to minimize dc offset and eliminate interstage coupling capacitors. The bottom line is we believe you will find the Equitek E-350 to have a remarkably open and clean sound that will enhance any project. Bob Eaton Senior Microphone Engineer Switch Functions Power The Equitek E-350 incorporates a number of unique features including: Large 1. 1" Dual Diaphragm External Bias Condenser Capsule. [. . . ] Remove the batteries from the microphone and charge using a standard battery charger. IF USING ALKALINE 9 VOLT BATTERIES, DO NOT APPLY PHANTOM POWER TO THE MICROPHONE!DOING SO COULD CAUSE PERMANENT DAMAGE TO THE MICROPHONE AND VOID YOUR WARRANTY!NOTE: If you normally operate the microphone from phantom power, it is best to leave the microphone power switch in the on or 1 position at all times. (The microphone automatically shuts off to conserve battery power when phantom power is removed. ) Powering the Equitek E-350 Auto Power Shut Off Configuration Made with pride in Conneaut, Ohio U. S. A. The Equitek E-350 incorporates a circuit which shuts the microphone off if phantom power is removed. This is done so that battery power will be conserved if the user forgets to turn the microphone off. If it is desired to operate the microphone using only the batteries, this feature must be disabled or the microphone will not function. This is easily done by means of a small movable configuration jumper located inside the microphone. To gain access to the inside of the microphone, remove the XLR end cap by first removing the two screws. Then, loosen the screw on the back of the microphone and slide off the microphone housing. The jumper is labeled JP1 and is located next to the battery holder on the side of the card opposite the XLR connector. The jumper shorts two of three available pins to select the proper mode. From the factory, the two pins towards the A are shorted to enable the auto shut off circuit. Two disable the circuit, pull off the jumper and replace it so that the two pins towards the M (For manual mode) are shorted. The microphone can be used with phantom power when it is in this mode, however you must remember to turn the microphone off when not in use or the batteries will be depleted. User Techniques and Applications The Equitek E-350 can be used in a broad number of applications, ranging from live reinforcement to the most critical studio situations. The E-350 is ideal for vocals and voice overs, yet it also excels at some of the most demanding instrumental projects. The E-350 is great for virtually all acoustic, wind, and amplified instruments. The E-350 has been proven to be outstanding in all of these applications and more. Its uncolored sonic characteristics allow you to decide how a instrument or vocal will sound in the mix. Specifications Type: Side Address, External bias condenser Frequency Response: 10-20 kHz Polar Patterns: Cardioid, Figure eight, Omnidirectional Impedance: Low (200 ohms nominal). Output Level At 1 kHz. : Power Level: -34 dB (0 dB = 1 mW per 10 microbars). Equivalent Noise Level: 11 dB Equivalent SPL, A weighted Maximum Output Level: With pad, . 89 dBV Without pad, 8. 9 dBV Maximum SPL: 148 dB SPL (With pad on) Total Harmonic Distortion: Less than 0. 15% Signal-To-Noise Ratio: 83 dB (At 94 dB SPL) Capsule Capacitance: 65 pF Powering: Minimum Requirements are 48 - 52 Volts Phantom Power capable of delivering at least 8 mA. broadcast quality extension cable terminated with professional 3 pin male/female connectors Optema Series, OS110 Dual Diaphragm Condenser Capsule OS-110 Capsule The OS-110 condenser capsule is the standard capsule supplied with the E-350 microphone. [. . . ] The ZM-1G eliminates mechanical shock interference that is transmitted through the microphone stand by footsteps, machinery, or other vibration sources. The ZM-1G also incorporates a built in swivel for ease of microphone positioning. The ZM-1G attaches to microphone stands with a standard 5/8" x 27 thread. ZM-1G Equitek shock mount Description Unscrew the small knurled adapter and rubber ring from the large knurled knob as shown in Figure 1. Screw the adapter and ring snugly into the bottom of the microphone as shown in Figure 2. [. . . ]