arnyk wrote: > I don't know how well the Logos amp was designed. I see that there is > evidence on the web that it incorporates a false claim in its > advertising claims, that its 8 ohm power doubles into 4 ohms; > > http://www.soundstagenetwork.com/index.php?option=com_content&view=article&id=1347:bhk-labs-measurements-pathos-acoustics-logos-mkii-integrated-amplifier&catid=97:amplifier-measurements&Itemid=154 > > " > Power output > > Output power at 1% THD+N: 155.0W @ 8 ohms, 237.4W @ 4 ohms (4 ohms > power = 142% of 8 ohm power) > " > > In fact its actual 4 ohms performance is about 40% more more than its 8 > ohm power, which is fairly typical for power amps, even some fairly > inexpensive ones.
I expect in our commercial world, there's a lot of this kind of marketing hype about, sadly! What did you make of their "valves are better for voltage amplification, solid-state devices are better for current amplification" statement? It seems a bit too simple to be taken at face value to me. Having said that, they do stick the same twin triodes in the analogue stage of their Digit CD player (& used valves in the expensive & now discontinued Endorphin CD player which has to be a candidate for the sexiest looking CD player of all time). As far as the Logos itself is concerned, it's very well built & has more power than I need. I think the implementation of the Class A/B design is the most important aspect - it sounds good to me, don't know if anyone has investigated its transfer characteristics. Had it seven years plus now, it could be eleven years from new. Dave :) ------------------------------------------------------------------------ Golden Earring's Profile: http://forums.slimdevices.com/member.php?userid=66646 View this thread: http://forums.slimdevices.com/showthread.php?t=106914 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
