Like what has been said, the silver chassis Shiva loop was sorta like the SLO loop. Very hot. Some stuff can take it, but YMMV. The green chassis model is much better, but pretty much every Bogner loop pre-Helios adds a tiny bit of gain and compression. It is just the way it is, and setting the channel masters is very important to how the whole thing sounds. My XTC sounds like a fire breather with the loop disengaged, and just a bit more "polite" with it on. It is noticeable in the transients, and once you hear it you can't really un-hear it. It isn't a bad loop (nor is the Shiva's), but it isn't up to the level of say the Helios or ATMA or any of the Friedman stuff using the Metro loop.