Bryston B-100 or Luxman L-507u?

First I haven't heard the Luxman but being a former Bryston B100 owner all I can say is 2 things. Seriously consider the warranty and voltage specs. The B100 is a fantastic integrated. Had I not discovered the world of tubes I would have upgraded within the line if not for the speakers I have now. I have the Dyn C1's at 85db is the only reason I had to upgrade my integrated.

Having owned a few Bryston separates, and the Luxman 505u, the 505u is my cup of tea.
The Brystons are really bult like a tank, durable & superb customer relationship. A-1
But in terms of sound, i find the Lux musicality quite beguiling.
Best if you can audition both but personally i would go for the Lux.
Good luck

I live in Canada, and last year made a serious investment in a new audio system after much research and auditioning.

I really wanted to try to put together an entirely Canadian made system, but that would have entailed certain compromises.

I did buy oustanding world-class Canadian speakers (Verity Audio Parsifal Ovations) powered by Japanese electronics (Luxman 509u integrated amp and Luxman D-06 cdp).

I looked very closely at Bryston separates, and even though I live driving distance from the Bryston factory and hence good pricing, I ended up buying more expensive Luxman electronics. Bryston is solid well made gear that is perfectly acceptable in most respects, but Luxman is more refined and luxurious, built to a higher standard, and much more musically engaging.

I had to pay an extra premium for Luxman vs. Bryston, and I have no regrets. You don't have to pay a premium for Luxman, and so there is really no contest.

I haven't heard either of the two, so take that into account. That said, I own the L-590A II and have heard the L-505U at a show and I think quite highly of them. Being that you can purchase the Luxman at a great price, I would do so and not think twice.

Agree=Luxman is luxurious in feel and in sound.
Another one that one should consider are the Accuphase.