Great sign and also my impression with ER. My router sounded better fully open, with crisp highs. Musical and free, not locked.Yeah, it seems a lot louder without the ER. Not sure if it is entirely a good thing or not.
The ER looks like an over-engineered mess imo. There are more power conditioning on that pcb than my entire system.
These types of audiophile products with a lot of power conditioning components are for people with poor power.
For people with great power skip these kinds of products, be aware of the trend.