That's good advice from Russ. Used is a good way to get great amps at good prices, but one must also be aware of possible repair costs. Bryston has a long warranty, so one brand such as this would be high on my list today.
When I bought my first pair of Martin Logan speakers about ten years ago, the Vista model, I had a Pioneer Elite 7.1 channel receiver with 110 watts per channel. The Pioneer was immediately overwhelmed, couldn't use it except at extremely low volume level, and my Sansui AU-717 was rated at 8Ω so I couldn't even try it. So I bought a used Carver TFM-25, for about $300, which worked ok in an apartment with apartment volume settings.
When I moved into a house with larger rooms, and I could turn up the volume, the Carver was not up to the task and sounded harsh at bigger room volume levels, not loud, just trying to fill the space with sound. So after a lot of reading, looking, and shopping, looking at all sorts of amps "in my budget", I ended up with Krell S-1500 amp - which was way above my budget but I was 100% certain the Krell would have no trouble - that lasted until just a few weeks ago when I replaced it with another much better Krell. So the S-1500 lasts about 9 years and was a great purchase at double my budget at the time even with the steep discount for being a demo model at the dealer.
There are quite a few demo models of amps, with full warranty!, at various dealers out there. Heck, I know of a place that sells all sorts of appliances and electronics for every budget that routinely has demo models and customer returns which are marked down 40% and put on a shelf, and can be sold for even less with a nice conversation with the sales associate.