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Musician questions

Former Community Member
Former Community Member

Hi there, 2 questions using my Seaward Apollo 500:

1- my radio connection between guitar and amplifier has a separate PSU, so is class 3? Should I simply PAT this as class 2?

2- my bass combo amp is a pretty new Ashdown Studio 15 which does not have any class marking (apart from RoHS CE) so has to be class 1? But this device fails earth continuity and I don't believe it is manufactured to earth the exposed metal parts. Can I ignore this test? If so, for what reason?

Thank you.

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    I would test the power supply of your radio link unit as class II, assuming it is marked as such.  Note that under the latest COP electrical testing of class II may no longer be required depending on your risk assessment and a formal visual inspection may suffice.

    For the bass amp I would approach the manufacturer for confirmation of the class, and if they say class II then ask them why it is not marked as such.  They don't provide any information in the manual either.  The only other point of inference on this is there is no statement on the unit or in the manual that ‘This appliance must be earthed’ - so maybe not class I but if they messed up the markings then what else have they messed up?

    Edited to add - Class II marking is not mandatory - but is jolly helpful in these situations!

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  • 0

    I would test the power supply of your radio link unit as class II, assuming it is marked as such.  Note that under the latest COP electrical testing of class II may no longer be required depending on your risk assessment and a formal visual inspection may suffice.

    For the bass amp I would approach the manufacturer for confirmation of the class, and if they say class II then ask them why it is not marked as such.  They don't provide any information in the manual either.  The only other point of inference on this is there is no statement on the unit or in the manual that ‘This appliance must be earthed’ - so maybe not class I but if they messed up the markings then what else have they messed up?

    Edited to add - Class II marking is not mandatory - but is jolly helpful in these situations!

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