My system consists of a Spectral DMC-10 stereo preamplifier and an Arcam AVR350 running into a Musical Fidelity A5 power amp which has two switchable inputs. The A5 drives a pair of PMC OB1 speakers, which are matched to a PMC CB6 centre channel and a pair of PMC Wafer 2s driven by the AVR350. Also used is a REL Stentor 3 subwoofer connected via low level to the AVR350 and via high level to the A5 power amp. This configuration allows me to switch between using the A5 power amp and OB1s for AV or pure stereo purposes. I have now just sold my A5 power and need to replace it. Ignoring the switching aspect of things, what suggestions do you have for a suitable replacment to drive my OB1s? My obvious choice is the Bryston 4BSST as that is what PMC themselves recommend and I am a PMC/Bryston dealer and can therefore get them at staff prices. Before I take the plunge, does anybody else have any suggestions or alternatives to look at. I may have to automatically dismiss some options due to my inability to get them at trade/staff costs. Another large part of the appeal of the Bryston amp is the 20 year warranty that comes with it, I'm not aware of many other manufaturers that can rival this. Alternatively does anyone else own this 4BSST and OB1 combination? If so what do you think of it? Is there anythng you don't like about it soundwise or functionality wise.