I have owned the Prologue 2 for a couple of years . It has been trouble free and somewhat of a cameleon with all of the tubes that can be used in it . Easily tailoring the sound to your desires .
I prefer it to the Cary SLi-80 ( less maintaince and better topend extension) and the Cayin A-88T (much less maintaince and better extension on the top). And it costs about half as much .
I have owned the Cayin and A/B it to the Cary . These two are actually pretty close to each other in sound .
And yes , the auto biasing is a definite plus and tubes sound better to me than SS . Especially at this price point .
I prefer it to the Cary SLi-80 ( less maintaince and better topend extension) and the Cayin A-88T (much less maintaince and better extension on the top). And it costs about half as much .
I have owned the Cayin and A/B it to the Cary . These two are actually pretty close to each other in sound .
And yes , the auto biasing is a definite plus and tubes sound better to me than SS . Especially at this price point .