My congregation has a four year old sound system (EV Wireless Microphone System ) with hand held microphones ( HTU2D-767a), I’m looking for the rubber gaskets that hold the mouth piece in place inside the microphone. Thanks Frank
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I do not know if an overhead microphone will work satisfactory for your application, unless you have several of them placed in the ceiling or it is a small room. You can use a boom with a shotgun microphone to direct it over the speaker. You may want to consider a parabolic microphone which is highly directional gathering sound from the direction it is pointed in. You may have to have an individual point the microphone at the speaker, and it known to have a poor low frequency response. You can look at the diagram from the below link and try to experiment with a cooking wok to see how it works.
The better parabolic microphones will have a bigger dish and price tag with a directional microphone or a shotgun microphone.
A parabolic microphone is what is used by the media for outdoor sporting events which you can see at football games on the sidelines to hear the players on the field without a lot of crowd noise from the spectators.
Your receiver runs on an external power adapter. I think you meant the hand held transmitter. Hold the top metal mesh dome of the Mic and twist the lower casing anti clock wise. The Tubular cover will come off and you will see a battery compartment into which you can insert 2 AA cells.
The Shure SLX2 hand-held microphone has similar performance characteristics to the much-loved (cabled) Shure SM58 vocal microphone. It has a 'cardoid pick-up pattern' intended for close work - being spoken / sung straight into the top of the capsule at no more than about 8 inches from the mouth of the user- to minimise feedback and extraneous noise. If you double the distance between the mouth and microphone the sound level will drop four-fold so distance really matters.
The SLX1 lapel/ lavalier is a semi 'omni-directiona'l pick up pattern microphone, which should work satisfactorily up to 12 inches from the speakers mouth, but closer is better. Always try to get your users to hang it about 6 inches below their chin, at most, and preferably with the top of the microphone capsule pointed upwards towards the mouth.
Here are a few other things for you to try:
There is a volume (gain) knob on the back panel of the SLX receiver unit. Try turning this up to maximum (needs a small screwdriver)
Make sure that both aerials on the receiver are fully extended at different angles to each other and in a clear 'line-of'sight' with the transmitter pack, with no large bits of metal in between which could block the signal. Ideally the receiver should not be more than 25metres from the transmitter. If distance is a problem locate the receiver near to the transmitter and run a balanced (xlr) cable to your mixer/ amplifier.
The angle that the receiver aerials are at should be broadly similar to the angle that the transmitter antenna is at to optimise signal reception.
Make sure the receiver is not located too close to other electrical equipment which may be interfering with the signal (especially voltage transformers, CD or DVD players and hearing loop induction amplifiers which have a strong magnetic field)
Always use good quality batteries - Duracell Ultra or equivalent ( do not use rechargeable batteries as they seldom achieve optimum voltage)
Check that the antenna is tightly screwed into the SLX1 transmitter pack and not damaged.
The SLX2 hand-held microphone has an adjustable level switch inside the body - unscrew the top of the microphone to access it - switch to maximum.
Another possible cause could be an impedance mis-match between the SLX receiver and your amplifier or mixer. There are two outputs on the rear panel of the receiver. One is an XLR (large 3 pin socket) this is LOW impedance and needs connecting to a low impedance input on your mixer/amplifier. You should normally be using this output even if your amplifier has a jack-socket input (use a proper balanced XLR to 6mm trs jack cable rather than a adapter plug). The other output on the receiver unit is a 6mm HIGH impedance, unbalanced, standard jack socket (labelled 'line in'). This would normally be to connect to a guitar amplifier which has a high impedance 'line level' input socket. If you are using this output you may need to use a pre-amplifier to get a big enough signal for a microphone.
There are many things that can cause bad sound in a wireless system. I suggest calling Shure at 847-600-8440. Their Applications group can help you troubleshoot the problem. Have the wireless system with you when you call them.
That is an odd encounter, and most probably one of the R.F.I. kind. Radio Frequency Inference can be caused by many things. Sometimes it can be a nearby piece of equipment creating that much interference, that the mics could not operate. It may have been a spurious mobile radio transmitter as used with two way radio for the cops, ambo's, firies,or even a nearby Cab!! Some times faulty light dimmers can also spray RF.
To what ever end, the fact that 4 mics went down together is indicative of an external problem, and being radio mics, it would have been radio interference.
The only other thing to check is that they are UHF. there are many VHF mic systems still about, but these frequencies are now being used as part of the soon to be introduced digital TV transmission. Best check that they are UHF, The VHF type have actually been illegal for a number of years Hope this info has helped you understand your problem. I am happy to answer any questions you may have. Cheers