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Compact4 system c/w handheld radio microphone


Compact4 system c/w handheld radio microphone


£731.23 (£609.36 ex VAT)
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2 +
£689.36 each (£574.47 each ex VAT)

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Please choose required channel below. Note if being used as a standalone system, the channel doesn't matter


Order now for dispatch on Mon 19th Feb.


Compact4 speaker/amplifier with integral radio microphone receiver, for operation on mains or rechargeable battery. Supplied as a system kit with one handheld radio microphone transmitter - the receiver has 2 receivers so a second channel transmiiter can be added later if required.

For audiences of approx 150 people: 

The Compact4 speaker/amplifier unit is ideal for public address applications. It has one radio microphone receiver and two other inputs.

The Compact4 is the 40-watt big brother of the MICRO. The amplifier is battery-powered with an intelligent charging circuit. Just plug it into the mains to re-charge. It has been designed to provide exceptional clarity and intelligibility of speech.

The amplifier is easy to use, requires no technical expertise and can be quickly moved anywhere inside or outside a building without the need to find a mains socket. It really is a plug and play (or listen in our case) product. 

The controls are kept to a bare minimum for ease of operation. 

Audiences of 150 or more can be addressed with ease, although a second unit  on the other side of the room gives a more balanced sound.

The amplifier weighs approximately 11Kg and has an underside top hat fitting for mounting on a standard speaker tripod stand (available for purchase separately).

There are separate inputs for a cable microphone and for a line level input (CD player, iPod or other sound source) with individual volume controls for each input.

For tone adjustment there are are Bass and Speech Clarity controls. 

There is a link IN/OUT connection socket which can be used to connect this unit to another Compact4 with built-in radio microphone receiver(s) for use as an extension speaker. The sound from the inputs of either Compact4 units will be heard from both Compact4s.

The Compact4 will run for up to 12 hours on its internal battery. The unit can be used on mains power while being charged.

40 watts, rechargeable battery/mains powered.


Free Trial for every UK school
We are so confident that you will love using the SoundRanger portable PA system that we are offering every school in the UK mainland a free trial.

It is very easy, just tell us which SoundRanger system you would like to try, we will send it to you ready to use, ‘straight out of the box’.

Then, at the end of the 2 week trial period, if you do not think it is making a positive difference to your school, you can just send it back to us – simple! 

To arrange a free trial for your school, please just email our Director Phil Boswell phil@connevans.com and leave the rest to us!   

Approx size (mm): 380 x 190 x 340.

Approx. weight: 11kg.

Kit includes:

One Compact4 with rechargable battery & mains lead with UK plug.

One handheld radio microphone.




Compact4 dual receiver unit specification:

  • One integral channel VHF receiver
  • Carrier Frequency: 173.8 to 175 MHz approved to EN300 422
  • Oscillation Mode: Quartz controlled
  • Aerial (Antenna): Built-in
  • Max Deviation: 15 kHz
  • Power Output: 40 watts into an 8-ohm load
  • Frequency Response:  40Hz to 16 kHz +/- 3dB
  • Maximum 106dB SPL at 1m/1KHz
  • THD: <1%
  • Bass tone control
  • Speech clarity tone control
  • Cable (wired) microphone input - balanced or unbalanced electret or dynamic microphone. 6.3mm jack or XLR
  • Line level auxiliary input. 2 x RCA phono sockets, summed internally
    Sensitivity 360mV
  • Separate volume controls for each input
  • Link IN/OUT 6.3mm mono jack
  • Speakers: Pair of super-high sensitivity 5-inch full range
  • Power Supply: 12Volt 7.2 Ah rechargeable battery with intelligent charging
  • 220/240vAC 50Hz mains. IEC socket connection.
  • Charging Time: Approximately 6 hours
  • Operating Time: Up to 12 hours
  • Dimensions (mm): 380L x 190W x 340H
  • Weight: 11kg(with battery)


Channel A is 173.8 MHz (with a second channel C receiver)

Channel B is 174.5 MHz (with a second channel D receiver)

Channel C is 175.0 MHz (with a second channel A receiver)

Channel D is 174.1 MHz (with a second channel B receiver)



Help Centre


Review this product

Compact4 system c/w handheld radio microphone (40SFK4A)

Reviewed by: Karen Cssef from Aldershot

Stepping outside my house and a few blocks away from our local school, you can imagine my level of happiness to be able to hear the school using the Sound Ranger that we have on trial from you at the moment. I was shocked at the distance that the sound travelled and how fab the quality of sound was.

Thank you Phil for coming to set it up. Sports Day with a megaphone days are GONE. I don't think it will be long before our charity is getting the cheque book out to buy the Sound Ranger.

It was used today for the PTA Summer Fayre. Big thumbs up from them too. The PA system from the DJ microphone was used at times and kept cutting out............... oh my wow, the difference is amazing.

Rating: 5          


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Can we advise buyiong some transmitter batteries as they are a good price!

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