1. I see a CE mark but no UL. It's unlikely that they are approved for use in the U.S.

2. 32 amps is going to be a problem. The AHJ isn't going to go for 32 amp breakers protecting 20 amp receptacles. And you're probably going to need 8 gauge wire, because #10 is explicitly limited to 30 amps.

3. Your customer is an idiot.

4. Make sure that your customer knows that audiophile grade equipment requires audiophile grade installation, which goes for $500/hr.