Sennheiser EW 145 G3 Owner's Manual

Page of 79
www.sennheiserusa.com/G3
11
The compact EK300IEMG3 bodypack 
receiver provides each performer with 
clear, interference-resistant monitor-
ing. Like the transmitter, it features 
frequency number and channel num-
ber display and a Focus control, which 
allows the user to adjust the balance 
of the system’s two channels to create 
a custom monitor mix. The receiver 
also features an adjustable Audio Limiter, which restricts volume to protect against 
hearing loss. The evolution Wireless Monitor System comes supplied with high 
quality IE4 stereo ear phones, which provide lightweight comfortable listening, but 
can also be used with custom ear molds (ordered separately) for the ultimate in 
wireless comfort, fit and performance.
Accessorizing a System
Sennheiser offers many useful accessories for the evolution wireless G3 series.
GA3 Rack Adapter
For convenient side-by-side mounting of up to two fixed EM receivers, SR 
transmitters, ASA1 splitters or AC3 combiners in a standard 19” rack.
AM2 Front Antenna Mount
For use with the GA3 for use with fixed receivers or transmitters in a stan-
dard19” rack-mounting arrangement, the AM2 is used to mount anten-
nas in the front.  This enhances performance over having the antennas 
“buried” inside the rack.
ASA1 Antenna Splitter/DC Power Distributor
Active antenna splitter that feeds RF signal and DC power through the RG58 cable to up to four fixed 
receivers simultaneously.  This reduces the number of antennas required and makes for a very “clean” 
installation. Two ASA1 units can be coupled to feed up to eight receivers from a single pair of anten-
nas.  More than eight receivers can be fed from a single pair of antennas when feeding the output of an 
ASA1 into two or more ASA1 units.
Component Requirements
Generally speaking, wireless systems are sold as sets which contain one transmitter and one receiver. 
If you require more than a single transmitter or receiver, there are several important points you must 
consider. First, a transmitter and receiver must be able to tune to the same frequency in order to work 
together. For example, a VHF transmitter cannot work with a UHF receiver. Secondly, transmitters and 
receivers must both use the same compander circuitry in order to work together. Since the transmit-
ter’s compander circuit dictates the way the audio is “compressed” into an RF signal, the receiver on 
the other end must have compatible circuitry to “uncompress” the RF signal into a high-quality audio 
signal. evolution wireless systems employ Sennheiser’s proprietary HDX™ compander circuitry for 
superior signal-to-noise ratios and quiet operation. evolution components can only be used with other 
HDX™-enabled Sennheiser components. Because of the flexibility of HDX™, all evolution components are 
compatible with one another regardless of generation (G1/G2/G3) as long as you can tune to the same 
frequency.  In addition, evolution components are compatible with the 2000 series.  As a result, evolu-
tion wireless G3 offers a high degree of frequency agility in each range (1680 frequencies). This allows 
you to easily configure everything from a basic setup to large multichannel systems, depending on the 
surrounding RF environment.
SR300IEMG3 Transmitter
EK300IEMG3  
Bodypack Receiver