Question about Sennheiser ew 300 IEM G3 In-Ear Wireless Monitor System

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Ew 300 IEM G3

• I was using a new ew 300 IEM G3 in an outside Gig with 3 other 200 IEM G2 units. The G3 system was receiving interference that sounded like pink noise with a very loud finish. The interference lasted about 5 sec and then the system returned to normal. The interference was only present on or near the stage 10+ meters from the stage all was OK The system was within 2 meters of a Speaker stack of Mackie subs and an array

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  • Peter Colls Nov 29, 2012

    Some other notes: The loud pink noise sound lasted for about 5 secs and finished with a loud pop. the G3 then returned to normal reception for about 30 sec then the pink noise started again. this cycle continued while the G3 was on stage. Remove the G3 to the sound tent and it was perfect. All levels were correct.

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Posted on Jan 02, 2017

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SOURCE: Some Headphones have an inherent

Hiss is a problem of statistical noise in electronic devices due to the laws of physics plus circuit design.

One thing to do is to improve the signal to noise ratio (SNR) by properly setting gains. It is POSSIBLE that the IEM's you are using are too low impedance for the receivers resulting in you having to use excessive gain at the receiver. Your receiver gain control should not have to be above 60% of the way up. If you are above that, the ear buds are probably lower impedance than the receiver is designed for... and remember the manufacturer will LIE on the capability of the thing they are trying to sell.

The receiver is speced at 32 ohm drive... IF your ear buds are less than that impedance, they are NOT suitable. Conversely if they are too high, thaat will ALSO cause you to turn up the receiver gain too much and result in poor SNR.

You want to make sure the transmitter is being driven at line level so receivers get adequate input audio so gain doesn't have to be run too high.

Posted on Jan 04, 2011

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Ironfist109
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SOURCE: the ew 3000 iem (brand

Hello,
To get your transmitter out of mute press the standby button and hold it briefly until "RF Mute Off" appears. Your display should change from red to orange and the transition icon will also be displayed again. This indicates your transmitter is transmitting.
Regards, Tony

Posted on Mar 24, 2011

  • 5603 Answers

SOURCE: I feel that the 'normal'

No, that will not help. The his is a function of the receiver NOT receiving a signal from the transmitter as they apparently do NOT have a "squelch" circuit to mute the receiver noise when no signal is being received. The noise level when no signal is received is pretty high and apparently the volume control is not enough to reduce the hiss.

To solve this, LEAVE the transmitter ON and make yourself a switch at the receiver. DO this using one of those little in line lamp switches that fit on zip cord. Make one on a short length of zip cor with mating connectors to fit the received jack and the headphone plug. Don't worry about unshielded wire as the impedance is very low. Then you use this switch to mute the headphones when you want to. There are other switch types you can use, I am just suggesting what might be readily available to you.

Sennheiser SHOULD have include a mute switch on their unit as turning the power off on the receiver would be a pain. They could have used a volume control with switch to kill the audio line out... simple solution... oversight on their part.

Posted on Mar 25, 2011

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No, that will not help. The his is a function of the receiver NOT receiving a signal from the transmitter as they apparently do NOT have a "squelch" circuit to mute the receiver noise when no signal is being received. The noise level when no signal is received is pretty high and apparently the volume control is not enough to reduce the hiss.

To solve this, LEAVE the transmitter ON and make yourself a switch at the receiver. DO this using one of those little in line lamp switches that fit on zip cord. Make one on a short length of zip cor with mating connectors to fit the received jack and the headphone plug. Don't worry about unshielded wire as the impedance is very low. Then you use this switch to mute the headphones when you want to. There are other switch types you can use, I am just suggesting what might be readily available to you.

Sennheiser SHOULD have include a mute switch on their unit as turning the power off on the receiver would be a pain. They could have used a volume control with switch to kill the audio line out... simple solution... oversight on their part.

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Hello,
To get your transmitter out of mute press the standby button and hold it briefly until "RF Mute Off" appears. Your display should change from red to orange and the transition icon will also be displayed again. This indicates your transmitter is transmitting.
Regards, Tony

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Hiss is a problem of statistical noise in electronic devices due to the laws of physics plus circuit design.

One thing to do is to improve the signal to noise ratio (SNR) by properly setting gains. It is POSSIBLE that the IEM's you are using are too low impedance for the receivers resulting in you having to use excessive gain at the receiver. Your receiver gain control should not have to be above 60% of the way up. If you are above that, the ear buds are probably lower impedance than the receiver is designed for... and remember the manufacturer will LIE on the capability of the thing they are trying to sell.

The receiver is speced at 32 ohm drive... IF your ear buds are less than that impedance, they are NOT suitable. Conversely if they are too high, thaat will ALSO cause you to turn up the receiver gain too much and result in poor SNR.

You want to make sure the transmitter is being driven at line level so receivers get adequate input audio so gain doesn't have to be run too high.

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