should I plug it into my Furman PST8 or directly into the wall outlet?
Well, obviously it’s easy to try it both ways and just follow your ears, but I’d be surprised if it doesn’t sound better plugged into the Furman. This a very different animal from your Sim amp and doesn’t require near the current and also seems to benefit greatly from using filtered power. But, you’ll find out either way. Don’t rush to judge as the amp will probably need at least 100 hours before it breaks in but might wanna check with BC on this.