Hi,
I want to put a TDA7498 class D amplifier module in a 1590BB aluminium enclosure and power it from a 24V laptop brick. The idea is to use it as a guitar power amplifier. From what I read attaching either pole of the power supply to the metal enclosure defeats the purpose of a floating power supply. Is this true? Can I attach the ground lead from the guitar signal to the enclosure for signal shielding or should I make sure nothing is in electrical contact with the enclosure?
I want to put a TDA7498 class D amplifier module in a 1590BB aluminium enclosure and power it from a 24V laptop brick. The idea is to use it as a guitar power amplifier. From what I read attaching either pole of the power supply to the metal enclosure defeats the purpose of a floating power supply. Is this true? Can I attach the ground lead from the guitar signal to the enclosure for signal shielding or should I make sure nothing is in electrical contact with the enclosure?
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