The Bryston warranty is what drove me to get their amps when I had some funds available 2 years ago to set up a modest HT build (audio can be a very expensive hobby, especially for someone with limited means!). I purchased the 4B-ST and then an 8B-NRB on the used market, both of which had some problems, but which were fixed within 2 weeks at no cost by the repair department - that's a fantastic deal, especially considering the age of these amps. Since then, they have performed pristinely and I am enjoying them every minute in my HT, bi-amping them to the B&W Matrix 801 series 2 - they have plenty of power to drive these speakers, and the sound is natural and involving. Bryston's repair department is phenomenal - and you get to talk directly with the technician who is fixing your amp - which is usually unheard of these days! In the future, when and if I had the resources to upgrade or looking for new components, Bryston would be at the top of my list.