Another mississauga person
Yeah...head-fi can do that to your wallet. HE-500 is easily one of those headphones that if you like them, you won't really need to get something else. Unless you just want to try different stuff. This headphone still can surprise me from time to time. A good DAC is also needed with the HE-500 IMO. The E10 that I used to use it with before doesn't do justice. ou should be fine with your Bifrost though. Good luck.
Very true. They respond well to a quality source, soundstage, depth, control etc depend on it.