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The test equipment I use is the state-of-the-art Seaward Apollo 400. This machine has been calibrated as required. I chose this machine as it is the most up to date industry standard machine, widely recognised as one of the most powerful and versatile testing machines on the market.

Seaward Apollo 400


calibration certificate

What does and doesn't need testing

Anything that connects to mains electricity needs a test and certificate. So;
Mains cables, extension blocks and reels, powered (active) speakers, mixing desks, guitar and bass combos and amplifiers, PSUs (power supply units for fx pedals, radio mic receivers etc), IEC (kettle) leads (note; these are a test in their own right), stage lighting, computers, laptop PSUs, power amplifiers, domestic appliances, battery chargers, CDJs, turntables, DJ mixers, electronic keyboards (or their PSUs).

Items that do not need testing include: microphones, guitars, audio leads, passive speakers, battery operated items, low voltage items requiring a PSU.

Typical Test procedure

Below are a sequence of shots showing each stage of testing an IEC lead. Other types of equipment have differenct test settings but follow a simliar plan.

EMAIL or phone now and put yourself in the clear about PAT.


Having a Portable Appliance Test done on your precious musical equipment is about as exciting for most musicians as watching paint dry - slowly. Sadly, most venues now insist that your gear is tested before they'll allow you to play. As a musician and sound engineer myself, I understand both your disinterest in PAT testing and how much you value your equipment. I also know how to test it and look after it. This site is intended to give you some basic guidance and advice as well as the most important reason - to enable you to contact us so that we can come and test your gear - for a very reasonable cost.


Your certificates are always available online so no need to worry if you arrive at the venue and you've forgotten to bring a printed copy. Because your certificates are always on the Pat4Music website you've also got full authentication that the certificates are genuine!

Pat4Music NEWS

The Apollo 400 has landed

I've taken delivery of one of the most sophisticated, state-of-the-art PAT machines available - the Seaward Apollo 400. Highly accurate results, rock solid circuitry means your valuable gear is being tested safely.

First my disclaimer...Advice given in this website is correct to the best of my knowledge and is my interpretation of a complex subject. You should seek professional legal advice if you need absolute clarification of the laws relating to health and safety.

Pat4Music is part of Clive Sound