CAD Equitek E100-2 User Manual

Description
The Equitek e100
microphone designed for recording, broadcast and live applications. The implementation
of high speed, low noise, low distortion electronics makes the Equitek e100
Professional Microphones
candidate for the most critical applications.
The Equitek e100
2
e100
• Servo head amplifiers.
• High SPL Capability (148 dB SPL with pad).
• Transformerless balanced output circuits.
• Internal Power reservoir system that can supply ten times the current
The Equitek e100 2 combines
available from phantom powering alone.
an electret condenser cap-
• Triple point internal shock isolation system..
sule design with advanced
• Remote operation without phantom power using internal batteries.
electronics. Typical FET
(field effect transistor) con- • 20 dB non capacitive pad.
denser microphones use
• Stainless steel internal pop/EMI filter.
discrete designs. This
• Automatic power shut down circuit.
means they use individual
transistors that must be
carefully matched for proper

Getting Started

characteristics. Even with
The e100
careful matching, discrete
designs are inherently non-
charged for proper operation. Although the internal batteries were charged at the factory,
linear. Equitek microphones
the batteries will gradually self-discharge if the microphone has been in storage for a long
use a different approach.
time. It may be necessary to charge the batteries before initial use. Please see the section
We do not use any discrete
below on powering the Equitek e100
FETs. Instead, we use ad-
vanced high speed OpAmps
Caution!
(Operational Amplifiers).
These OpAmps are individu-
The high gain and wide bandwidth of the e100
ally laser trimmed for opti-
the inputs of many professional mixing consoles if adequate precautions are not taken.
mum performance and have
This is especially true if the mic is going to be used on percussion or amplified electronic
very high gain. This allows
instruments. If you have never used this microphone before, we strongly recommend that
a large amount of negative
you initially reduce the system gain by doing one or more of the following:
feedback to be used to sig-
nificantly reduce any non-
linearity. During transients,
• Enable the pad switch on the input of your mixing console.
these OpAmps may require
• Start with the input trim control on your mixing console turned down to a low
more current than typical
level.
phantom power supplies
• Enable the -20 dB pad switch on the e100
can deliver. The extra cur-
rent demands are accommo-
dated by our unique power
Powering the Equitek E-100
supply design. Instead of
The Equitek e100
using phantom power to op-
erate the microphone, we
pair of rechargeable 9 volt batteries. This powering arrangement overcomes the inherent
use it to charge a pair of re-
current limiting associated with most phantom power supplies. The batteries are trickle
chargeable batteries. This
charged by the phantom supply. When needed, the batteries provide the extra current
system creates a huge cur-
necessary during high SPL transients. The microphone will not function properly without
rent reserve for the
the batteries present. The microphone can be used without phantom power for periods of
microphone's electronics,
yet there is no maintenance up to 6 hours provided the batteries are fully charged. Standard 9 volt alkaline batteries
involved because the micro-
can also be used if extended operation is needed when no phantom power is available.*
phone automatically keeps
(Auto power shut off circuit must be disabled for battery operation without phantom
the batteries charged during
power.) The minimum requirement for the phantom supply is a regulated 48 volts with the
use. The use of OpAmps is
capability of supplying at least 8 mA. of current. Supplies that do not meet this
not the only unique feature
requirement will not allow continuous operation of the microphone. Before initial use, the
of Equitek microphones.
batteries may need to be fully charged. Once the batteries have received this initial
For example, we also em-
ploy servo circuitry to mini-
charge, they should not need to be charged in this manner again, unless the microphone is
mize DC offset and eliminate
unused for a long time. The batteries can be charged by two different means:
interstage coupling capaci-
• Connect the microphone to a phantom supply and allow the batteries to charge 12 -
tors. The bottom line is we
14 hours with the mic turned off.
believe you will find the
• Remove the batteries from the microphone and charge using a standard battery
Equitek e100 2 to have a re-
charger.
markably open and clean
sound that will enhance any * See the section on Auto Power Shut Off.
project.
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" position at all times. (The microphone
automatically shuts off to conserve battery power when phantom power is removed.)
2
from CAD is a single pattern supercardioid side address
2 incorporates a number of unique features including:
2 requires 48 volt phantom power and the internal batteries must be
2 .
2 microphone will easily overload
2
microphone.
2
2 is powered by a combination of 48 volt phantom power and a
Auto Power Shut Off Configuration
The following instructions are only important if you plan on
2
using the e100 without a phantom power supply, such as for remote
DAT recording. The Equitek e100
2 the ideal
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 battery cover of the
microphone. To gain access to the configuration jumper, remove the
single allen head screw near the bottom of the microphone on the
back side using the supplied 2.5mm allen wrench. Then remove the
battery cover and batteries for access to the configuration jumper. If
you do not plan to use the microphone without phantom power, it is
recommended that the configuration jumper remain in its default ON position.
A Special Note About Batteries
The high quality rechargeable batteries used in the Equitek e100
They were selected to provide long life with virtually no maintenance and have a number of properties that make them superior to
most commonly available rechargeable "9 volt" batteries:
1) Higher output voltage
2) Lower self discharge rate
3) High immunity to overcharging
If the e100 2 is operated with a 48 volt phantom power supply it is unlikely they will ever need to be recharged, even if the
microphone is unused for months. If it should ever become necessary to replace the batteries or if you simply want a spare set,
Use only high quality Nickel Metal Hydride, or Nickle Cadmium type batteries.
Switch Functions
User Techniques and Applications
The Equitek e100
swivel mount adaptor that can be used when the suspension mount isn't practical. Both mounting adaptors allow for easy
microphone positioning and mates to any microphone stand that has standard 5/8" X 27 threads. A thread adaptor is included for
the smaller threaded mic
2
incorporates a circuit which shuts
2
are Nickel Metal Hydride, or Nickle Cadmium type.
Power ON = Microphone Power On
OFF = Microphone Power Off (Use this position switch position for fastest
charging of batteries. See below.)
Hi-Pass
Left position = Low end roll off below 80 Hz.
Right Position = Flat low end response
Pad 0dB = Full gain (Highest Sensitivity)
-20dB = 20dB Gain reduction (Highest Clipping Level)
2
includes a suspension shock mount which greatly reduces handling noise. It also has an optional
stands. To remove the microphone and switch to the microphone stand adaptor, loosen the large
2
thumb screw on the back of the mic. The e100 can be used in a broad number of applications,
ranging from live reinforcement to the most critical studio situations. The e100
vocals and voice overs, yet it also excels at some of the most demanding instrumental
2
projects. The e100 is great for virtually all acoustic, wind, and amplified instruments.
One of the most popular uses for the e100
The e100 2 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. The supercardoid polar pattern is very useful in live applications
where feedback control and tight miking are required.
Mic Cable Removal
When using the included suspension mount, the microphone cable can be easily
removed by gripping the mic firmly in one hand, while pressing on the back of the
suspension mount with the thumb of your other hand, This will press the unlock button on
you mic cable which will allow the cable to be removed. Note the illustration to the left.

Optional Accessories:

EPF-15 ..... P-pop filter mounted on 15" gooseneck with standard bracket
40-350 ....... 50 ft. broadcast quality extension cable terminated with professional 3 pin
male/female connectors.
40-351 ....... 100 ft. broadcast quality extension cable.
40-352 ....... 25 ft. broadcast quality extension cable.
2 is ideal for
2
is in miking drum sets, especially kick drums.