5 votes

How can I prevent feedback when using wireless mics in a Theater in the Round?

The biggest thing is going to be careful EQing and using microphones as close to the actor's mouthes and as directional as possible. Feedback occurs when the amount of amplification applied to the ...
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  • 8,081
4 votes
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Convert traditional HiFi to wireless?

First, you will need to provide a power amplifier for each different speaker cabinet. You did not mention what model you have so we don't know what power, what kind of processing, etc. you would need. ...
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3 votes
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Managing dozens of wireless stage mics

This just requires using advanced enough wireless systems. Shure ULX-P for example can support 1440 different frequencies. They most likely mix in to subgroups and then mix subgroups together. ...
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  • 8,081
3 votes

Why is Compression and Expansion of Signal to Noise Ratio used in Wireless System signal transmission?

Compression followed by expansion is often called "companding" and is used in various fields to reduce noise. It is effective in reducing the final level of noise that is introduced between the ...
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  • 2,030
3 votes

How do sound designers for musicals avoid bleed?

Musical theatre, more often than not, uses head-worn lavalier microphones that are positioned very close to the mouth. This gives a much greater signal-to-noise ratio for the Front-of-House mixer to ...
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  • 8,374
3 votes

What should I take into account when I want to switch to wireless sub/speakers?

Advantages: saves you rolling out 2 long cables. Disadvantages: it's a 2.4 GHz system so there's potential for interference from wifi. they add a bit of delay, although 4 ms is not horrendous. ...
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  • 1,548
2 votes

Wireless system frequencies in Europe (as of 2020)

Sennheiser maintains a compilation of available frequency ranges and whether particular license is needed, country by country: https://en-us.sennheiser.com/sifa named “Sennheiser International ...
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2 votes

Wireless system frequencies in Europe (as of 2020)

For Denmark, rules (band assignments) for PMSE will change 2020-04-04 (between 3. and 4. of April). The "700 MHz" band, primarily used for 'Digital Terrestrial TV' (DTV, from transmitters placed on ...
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2 votes
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Is it possible to combine wireless transmitters and receivers of different brands?

It is sometimes possible, but not advisable, to transmit from a wireless audio transmitter designed by one manufacturer, to a wireless audio receiver made by a different manufacturer. Cross-...
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2 votes

Is it possible to combine wireless transmitters and receivers of different brands?

Some receivers will be compatible with transmitters from other manufacturers but this is generally not a common case. For example, Lectrosonics receivers can receive audio from Sennheiser G3 series ...
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  • 8,374
2 votes

How to use Sennheiser e945 mic as input for Smartphone

Stack Exchange generally doesn't like multiple questions, however, as these are all pretty tightly related... Q1. Would XLR to Bluetooth transmitter work for this ? A1. For a given definition of '...
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  • 7,024
2 votes
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What (and how) UHF receiver should I buy?

The manual for this device states it provides stereo line out (>250mV) on a pair of RCA (phono) connectors. If the microphone signal is routed to the line out you can record that with no need for a ...
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1 vote

Wireless system (transmitter and receiver) for XLR lavalier microphones and audio recorder?

There are a number of options here. The most practical will be a wireless lavalier kit. Typical devices are the Rode Wireless Go or the Sennheiser G3. Some manufacturers also offer a 'butt-plug' style ...
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  • 8,374
1 vote

Wireless system frequencies in Europe (as of 2020)

In France (as of February 2020) you can use PMSE audio equipment in the band 470-694 MHz with a power less than or equal to 50 mW. Notice that you are considered as a secondary user on this band, ...
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  • 2,613
1 vote
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Sennheiser passive omnidirectional antennas

Sennheiser wrote back with this answer: If you have the XSW 2 with the external antennas then the ASA 214 should work for antenna distro but it just wouldn't power the units like it would for the g4 ...
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1 vote

Managing dozens of wireless stage mics

With todays modern tech its not that tough. The biggest issue is making sure every thing is on its own frequency and the frequencies are properly spaced. Shure makes a software tool for their mic ...
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  • 1,000
1 vote
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Cost-effective way to convert a clip-on condenser to wireless?

As a trombone player, you play an instrument with an extremely wide dynamic range. Unfortunately if you attempt to run this wirelessly you will run into big issues with companding (compression/...
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  • 8,374
1 vote
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Can you use HD-SDI cables to loop antennas for wireless mics?

Usually, RF antennas coaxial cables have a 50 Ω (Ohms) characteristic impedance whereas HD-SDI cables have a 75 Ω characteristic impedance. The user manual of your line6 product actually mentions a ...
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  • 2,613
1 vote

How should Mini XLR condenser microphone be wired?

Page 23 of the following document contains the circuit diagram for the PT40 transmitter. http://cloud.akg.com/9784/wms40_service.pdf The Schematic indicates that the connection is balanced however ...
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  • 8,374
1 vote

Is there a way for me to hook up my headphones ( regular headphone jack ) via Bluetooth?

Yes, they exist. Here is one from Sony. Sony’s DRC-BT30P Bluetooth Headphone Adapter Let’s You Use Your Existing Earbuds
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1 vote

What microphone and wireless speaker to choose for large audiences

The reason you can’t pair a Bluetooth microphone and speaker is that Bluetooth has latency. You would speak and the sound that comes out of the speaker would be 1–2 seconds later, like an echo. ...
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1 vote

Wireless conference systems with more than 8 channels?

There is no single system that will provide you with that many channels and mics out of the box. The highest count I've seen is 12, and that was analog which I can't recommend due to noise ...
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1 vote

WiFi protocol for Clavinova keyboards

If you can dig up the service manual, there is a minute chance that they cover some of the technical aspects there. If you have an iOS device with the app, you can document the consumer related ...
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1 vote

How to connect a digital Piano and a PC to the same wireless headset?

First of all, we need to get audio running from your digital piano into the computer. This means you need an interface. Here's a link for a very basic one that's also pretty easy on the wallet: http:/...
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  • 465
1 vote

Pair of in-ear wireless headphones

Yes, it is called a Bluetooth Transmitter Splitter and many of them have a 3.5mm jack. It works with any kind of bluetooth audio receiver.
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  • 181
1 vote
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Can I use an AKG WMS40 wireless system to transmit a signal coming from a headphone jack?

According to the service manual (available on the AKG website) the phantom power is 3.9v and is connected to pin 3, so the microphone connector should have pins 2 and 3 shorted. If I understand this ...
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1 vote

Can I use an AKG WMS40 wireless system to transmit a signal coming from a headphone jack?

With a condenser microphone the 48-volt DC is applied to both audio lines, so it cancels out because the signal is sent as a difference between those two lines. With a headset jack the signal for each ...
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  • 141
1 vote

How can I prevent feedback when using wireless mics in a Theater in the Round?

AJ is correct on all accounts. There are a couple more things I'd like to add: speaker placement, aim, and signal route. Since you have an arena theater setup, think about where to put your ...
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