I have heard many SOA contenders & with a compatible pair of speakers nothing has ever matched the purity of an OTL. I remember the first time I heard a Futterman. It was certainly dirty sounding (enough to disqualify it in many ways), Even so it had a purity in the upper midrange in particular, that was unequaled by any objective or subjective standard. End of story. By any amplifies. A high quality OTL wiil far surpass it. I don not own an OTL. The speakers required are not anything I've encountered so far. Nevertheless it is & no class of amplifier I've heard comes up to that standard. None. Although there are some pretty wonderful ones for other kinds of systems that overall may be better compromises.
