Interesting device from Kemp Elektroniks!
Some Maraschino users have said they notice a slight improvement when using line conditioning. However, the Maraschino amplifier system was designed not to require such devices in four ways:
1. Power provided to the amplifiers is "reconstructed" and regulated by the power supply.
2. The amplifiers themselves have excellent PSRR (Power Supply [noise] Rejection Ratio).
3. The GND of the amplifier is floating and locked to the source. This eliminates hum in systems where it was previously an issue.
4. Common mode noise is cancelled out by the input stage.
It comes down to "YMMV", but I would recommend putting the amps on a separate AC circuit from the source only if the grounding is verified to be done properly. Well designed source components will have similar noise-countermeasures against AC line noise susceptibility.
Thanks for your posts.
Best Regards,
Tommy O