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Compact4 two radio microphone package for a small hall


Compact4 two radio microphone package for a small hall


£1,581.30 (£1,317.75 ex VAT)
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£1,485.68 each (£1,238.07 each ex VAT)
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Provides amplified sound for two presenters from two speakers for audiences of approx 300 people.


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 and leave the rest to us!


2 x Compact4 receiver amplifiers each with 2nd channel receiver module
2 x tripod stands for Compact4
1 collarworn microphone
1 transmitter belt pack
1 hand held radio microphone
10 PP3 alkaline batteries
1 microphone floor stand and hand mic holder



Compact4 two receiver unit specification:

  • Two integral channel VHF receivers
  • 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 (each Compact4 with battery)


Channel A is 173.8 MHz

Channel B is 174.5 MHz

Channel C is 175.0 MHz

Channel D is 174.1 MHz



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Compact4 two radio microphone package for a small hall (40SFXK22)

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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