Choosing a microphone for a function is not simply a matter of deciding whether you want a wired or wireless model. The right choice depends on who will use it, whether they need to move, how many people need to speak at the same time, whether the microphone is reproducing speech or singing, and how it will work with the rest of the sound system. A microphone that makes perfect sense for a vocalist can be unnecessarily complicated for a short wedding speech, while a simple wired microphone can become restrictive for a presenter who needs to move around a room.
The microphone is also only the beginning of the signal path. It needs to connect to a suitable mixer or PA system, and the resulting sound needs to reach the audience through correctly positioned loudspeakers. Cables, microphone stands and the physical layout of the venue can therefore matter just as much as the microphone itself. Thinking about the complete system usually leads to a better result than choosing a microphone in isolation.
Audio Hire provides microphone hire in Adelaide for weddings, corporate functions, presentations, conferences, parties, live performances and other occasions. This guide explains the main decisions involved so that you can understand what you may need before choosing equipment.
Start With What the Microphone Needs to Do
The most useful starting point is not a microphone specification. It is the person who will actually use the microphone. Consider what they are doing, where they will be standing and whether they need to move while they speak or perform. A wedding speech delivered from one position has very different requirements from an MC moving around a reception, a presenter walking between a lectern and screen, or a singer performing on stage.
For speeches and announcements, intelligibility is usually the priority. The audience needs to understand what is being said without the sound becoming harsh or unnecessarily loud. A wired handheld microphone can be a straightforward solution when the speaker remains in a defined area. Audio Hire's Shure PGA48 is suited to speech applications such as presentations, announcements and MC duties, while the Shure SM58 is a familiar professional choice for both speech and live vocals.
Live vocals introduce additional considerations. A singer may work very close to the microphone, change their distance from it deliberately and move around during the performance. A microphone such as the SM58 is designed specifically with vocal use in mind and has become a standard choice in live sound because of its combination of directional pickup, durability and practical handheld design. The way it is used still matters: even an excellent vocal microphone cannot compensate completely for poor microphone technique or inappropriate loudspeaker placement.
The number of people who need to speak is another important part of the decision. If several speakers appear one after another, they may be able to share a handheld microphone. A panel discussion, interview or production where several people need to speak simultaneously can require multiple microphones and sufficient mixer inputs to accommodate them. Our guide to how many microphones you need for an event looks at this question in more detail.
Wired or Wireless Microphones?
Wireless microphones are useful when freedom of movement genuinely improves the function. An MC may need to move between different areas of a room, a presenter may need to interact with a screen or audience, and some performers benefit from being able to move without a microphone cable following them. In those situations, a wireless handheld system can make the production considerably more practical.
A wired microphone should not be regarded as an inferior alternative. For a singer performing from a defined stage position, a speaker at a lectern or an MC working from a particular part of a room, a wired microphone can be simple and dependable. There is no transmitter battery to manage and no wireless link between the microphone and receiver. The microphone connects to the audio system using an XLR cable, making the signal path easy to understand and straightforward to set up.
Wireless systems add another layer to the audio system. The microphone or transmitter sends the signal by radio to a receiver, which then connects to the mixer or PA equipment. Batteries need to be considered, the receiver needs to be positioned appropriately and the wireless system needs to operate reliably in the environment in which it is being used. None of this makes wireless microphones undesirable; it simply means there should be a practical reason for choosing them.
For many functions, a combination can make sense. A wireless microphone might be used by an MC who needs to move around the venue while a wired microphone remains available at a fixed position for speeches or performers. The decision should follow the programme rather than an assumption that every microphone needs to be the same type. Our wired versus wireless microphone guide explores the differences in greater depth.
The Microphone Is Part of the PA System
A microphone does not amplify a voice for an audience by itself. Its signal needs to enter the rest of the audio system, where it can be controlled and reproduced through the loudspeakers. Depending on the setup, that can involve XLR cables, a mixer, powered speakers, extension leads and other equipment. Cable covers may also be appropriate where leads cross areas used by guests, staff or performers.
This is why microphone planning and loudspeaker planning should not be treated as completely separate decisions. Where the speakers are positioned relative to the microphone affects how much useful level can be achieved before feedback becomes a problem. The room itself matters as well. Reflective surfaces, the distance between the presenter and audience, stage position and the overall loudspeaker arrangement can all affect speech intelligibility and the amount of amplification required.
Feedback occurs when amplified sound from a loudspeaker is picked up by a microphone, sent through the system again and repeatedly re-amplified. The familiar result can be a whistle or howl. A directional microphone helps, but the microphone alone cannot prevent feedback. Loudspeaker position, microphone direction, operating level, venue acoustics and the way the person holds or positions the microphone all contribute. Shure's own guidance for the cardioid SM58 likewise emphasises microphone and loudspeaker positioning as part of reducing unwanted sound and feedback.
As a practical principle, microphones should not be pointed towards the main loudspeakers, and someone using a microphone should avoid wandering directly in front of them. Increasing the volume is also not always the answer when speech is difficult to understand. Sometimes the problem is microphone technique, loudspeaker coverage or placement rather than insufficient amplifier power. Our guide to stopping microphone feedback at a function covers the problem in more detail.
If you are building the complete system rather than adding a microphone to equipment already at the venue, Audio Hire's PA hire in Adelaide and sound system hire provide starting points for choosing the rest of the equipment.
Microphone Technique, Stands and Practical Setup
How someone uses a microphone can make an enormous difference to what the audience hears. A handheld microphone generally needs to remain reasonably close to the mouth and at a relatively consistent distance. Holding it too far away reduces the direct voice level reaching the microphone, which can encourage someone operating the system to increase the gain. That can make unwanted room sound and feedback more difficult to control.
Moving the microphone continually closer to and farther from the mouth also creates noticeable changes in level. This is particularly obvious when several people share a microphone during speeches. Someone comfortable with microphones may naturally hold it close enough to produce a strong signal, while the next person may hold it at chest height and become difficult to hear. A little guidance before the speeches or presentation begin can prevent a surprisingly large number of audio problems.
A microphone stand is useful when the microphone needs to remain in a consistent position or the person using it needs both hands free. Singers playing an instrument are an obvious example, but stands can also be useful for fixed presentation positions, readings, announcements and some ceremony applications. A stand is not automatically necessary simply because a microphone is being used; it should solve a practical requirement within the setup.
Cabling deserves similar attention. Wired microphones commonly use XLR cables, and additional XLR runs may be required between different parts of a larger sound system. Extension leads may be required to supply powered audio equipment, while cable covers can help manage routes that cross appropriate pedestrian areas. The objective is not simply to have enough cables, but to think through where equipment will be positioned and how everything will connect before guests arrive.
Testing the complete system before the function begins is equally important. Check every microphone that will be used, confirm that wireless units have suitable batteries, listen from different parts of the audience area and make sure the people who will actually speak understand how to hold or use the microphone. A system that works when tested quietly beside the mixer is not necessarily ready until it has been assessed from where the audience will be sitting or standing.
Choosing a Microphone for Weddings, Corporate Functions and Live Performances
For weddings, the microphone requirements often change throughout the day. A ceremony may involve a celebrant, couple, readings or live musicians, while the reception can involve an MC and several speeches before entertainment begins. A microphone may therefore need to be passed between speakers, remain at a fixed position or move around the room depending on how the programme has been organised. Working through who needs to speak, where they will be and whether anyone needs a microphone simultaneously is more useful than simply deciding to hire “a wedding microphone”.
Corporate functions and conferences can involve still more microphone planning. An MC may need a microphone throughout the programme while presenters rotate through the stage. Audience questions can create a requirement for a microphone that can move around the room, while panel discussions may require several microphones to be live at once. The number of microphones then affects the mixer and other parts of the system, so it is worth establishing the programme before booking individual pieces of equipment.
For live music, the microphone becomes part of the performance itself. Vocalists need appropriate microphones, stands may be required for singers or instruments, and the complete setup has to work alongside the main PA and any other stage sound. Audio Hire's Shure SM58 guide explains why that microphone remains such a familiar choice for live vocals as well as speech applications. Audio Hire's existing live information confirms the SM58 as a dynamic cardioid vocal microphone, while Shure specifies a 50 Hz–15 kHz frequency response and gives specific guidance about positioning unwanted sound sources behind the microphone to take advantage of its directional rejection.
The common principle across all of these applications is that the microphone should be selected around what people actually need to do. There is little benefit in adding wireless complexity where nobody needs to move, just as there is little sense in tethering a presenter to one part of a room when their presentation requires them to circulate. The same applies to microphone quantities: having too few creates practical problems, while hiring microphones that will never be used adds unnecessary equipment.
Putting the Complete Microphone Setup Together
Before booking, write down who needs to use a microphone, what each person will be doing, where they will be positioned and whether any of them need to speak or perform at the same time. Then consider whether they need freedom to move, whether hands-free use is important and whether the venue already has suitable audio equipment. Those answers usually make the microphone requirements much clearer.
Next, consider the rest of the signal path. The microphones need the appropriate connections and mixer inputs, the PA needs to provide useful coverage for the audience, and powered equipment needs suitable access to electricity. XLR cables, extension leads, microphone stands and cable covers should be considered as part of the setup rather than discovered to be missing when the function is about to begin.
You do not need to understand every microphone specification before hiring equipment. If you know approximately how many people will attend, where the function is being held, who needs to speak or perform and how they will use the microphones, that is enough information to begin making sensible equipment decisions.
You can browse Microphone Hire Adelaide to see the current microphone range and live availability. If the microphones are part of a larger setup, you can also explore PA Hire Adelaide or Sound System Hire Adelaide. If you are unsure what combination makes sense, contact Audio Hire with the details of what you are organising and we can help you work through it.